La distribution de la quasi-espèce

uk: Математика, природничі науки

description: En 1971, Eigen propose un modèle déterministe pour modéliser l’évolution au cours du temps d’une population infinie de macromolécules avec mutation et sélection. Deux phénomènes importants apparaissent : le seuil d’erreur et la quasi-espèce. Afin d’obtenir une version de ces résultats pour une population finie, nous étudions un modèle de Wright–Fisher avec mutation et sélection, et nous récupérons, dans un certain régime asymptotique, les phénomènes de seuil d’erreur et quasi-espèce. Nous trouvons de plus une formule explicite pour la distribution de la quasi-espèce. L’exposé sera introductif et non technique.

uk: вхід без авторизації


Juan-Pablo Vigneaux

type: Person

cs: Matematika

de: Mathematik

fi: matematiikka

uk: Математика

en: Mathematics

fr: Mathématiques

da: Matematik

es: Matemáticas

nl: Wiskunde

de: Mathematik, Naturwissenschaften

uk: Математика, природничі науки

en: Mathematics, Natural Sciences

description: L'entropie d'une variable aléatoire discrète, introduit par Shannon et généralisé par Kolmogorov, Sinai et autres, satisfait l'identité 0=H(Y|X)-H(XY)+H(X). On verra que, si on considère une catégorie S de “observables” et un topos de Grothendieck associé à ce catégorie (les préfaisceaux sur S), l'égalité ci-dessus s'interprète au niveau cohomologique comme une condition de cocycle. Sous certaines hypothèses, l'entropie apparaît comme le générateur du premier groupe de “cohomologie de l'information”, introduit par Benenquin-Baudot l'année dernière. On parlera de cette approximation catégorique aux probabilités classiques et quantiques; quelques constructions de Gromov seront aussi mentionnés.

TIB AV-Portal

type: Service

type: WebContent

type: MediaObject

@language: fr

cs: přihlášení není vyžadováno

de: keine Anmeldung erforderlich

uk: вхід без авторизації

en: no login required

nl: geen login vereist

name: Variation on sur information theory: categories, cohomology, entropy

name: Institut des Hautes Études Scientifiques (IHÉS)

addressCountry: FR

addressLocality: Bures-sur-Yvette

addressRegion: Île-de-France

type: Organization

cs: Video

de: Video

fi: Video

uk: Відео

en: Video

fr: Vidéo

da: Video

nl: Video

es: Video


uk: Математика, природничі науки

uk: вхід без авторизації

name: Les Probabilités de Demain - Introduction


uk: Математика, природничі науки

description: On considère dans cet exposé un modèle de branchement avec sélection introduit par Brunet, Derrida, Mueller et Munier dans la littérature physique : chaque particule bouge selon un mouvement brownien pendant un temps de vie exponentiel puis se sépare en deux nouvelles particules et, lorsqu'une particule se trouve à une distance L de la plus haute, elle meurt. On montre l'existence d'une vitesse asymptotique pour ce système de particule et on s'intéresse à son comportement quand L tend vers l'infini, confirmant ainsi une première partie des conjectures établies par les physiciens. Quelques brèves idées de démonstration seront présentées.

@language: en

uk: вхід без авторизації

name: Vitesse du L-mouvement brownien branchant


uk: Математика, природничі науки

description: Une construction de l'aire de Lévy avec drift comme limite renormalisée sur des graphes périodiques Dans la théorie des chemins rugueux, l’aire de Lévy joue un rôle important non seulement en tant que composante du mouvement brownien, mais aussi dans l’étude de la convergence des solutions des EDS, et c’est là où l’absence ou la présence d’un drift à la limite est cruciale. Le but de cet exposé est de construire explicitement une aire de Lévy avec drift comme limite renormalisée d’une chaîne de Markov sur un graphe périodique, d’en donner quelques propriétés et d’illustrer le tout par quelques exemples de modèles issus de la physique quantique.

uk: вхід без авторизації


uk: Математика, природничі науки

uk: вхід без авторизації

name: Stochastic model of protein production with feedback


uk: Математика, природничі науки

description: A point in the state space of a stochastic process is called “thin” if the associated occupation measure of the ball centered at this point is exceptionally small. We consider in this talk the Hausdorff dimension of thin points of a class of Markov processes with jumps. This is a joint work with Stéphane Seuret.

uk: вхід без авторизації

name: Thin points of certain Markov processes with jumps


uk: Математика, природничі науки

description: Dans la littérature mathématique, le mot diffusion fait référence à plusieurs définitions différentes. Je m'intéresse à la diffusion dite "macroscopique" caractérisée par l'existence d'une densité de particules évoluant selon la loi de Fick. Je porterai mon attention sur le modèle des miroirs en dimension 2 et sur sa généralisation en dimension quelconque. Ce modèle de gaz de Lorentz sur réseau permet un énoncé clair et rigoureux de la loi de Fick. Une approche analytique nous a permis de simplifier le problème et de réaliser une étude numérique qui permet de conjecturer la validité de la loi de Fick en dimension 3. Je présenterai succinctement l'étude, de façon très visuelle et abordable.

uk: вхід без авторизації

name: Approche macroscopique de la diffusion dans le modèle des miroirs


uk: Математика, природничі науки

description: We will try to briefly review two recent mathematical constructions of some random measures defined on the Riemann sphere. These objects are motivated by a rigorous description of the Liouville Quantum Gravity (here on the sphere). We will try to compare these two constructions and relate several key elements that appear naturally in both approaches. If time permits, we can also discuss the advantage of each approach. Joint work with Juhan Aru and Xin Sun.

uk: вхід без авторизації

name: Sur deux constructions de la gravité quantique de Liouville


Breaking barriers in probability

uk: Математика, природничі науки

uk: вхід без авторизації

name: Fondation Sciences Mathématiques de Paris (Organizer)


Using Mapillary data for editing maps

cs: Informatika

de: Informatik

fi: tietojenkäsittelytiede

uk: Комп'ютерні науки

en: Computer Science

fr: Informatique

da: Datalogi

es: Ciencias de la Computación

nl: Informatica

cs: Technické vědy

de: Ingenieurwissenschaften

fi: tekniikka

uk: Інженерія

en: Engineering Sciences

fr: Ingénierie

da: Ingeniørvidenskab

es: Ingeniería

nl: Engineering

description: This talk is going to give an overview of the different data endpoints of Mapillary, for example images, object detections (e.g. street signs), objects and vector tiles. We will look at different integrations like OpenStreetMap iD editor, JOSM, Wiki Loves Monuments and others using portions of this data to improve or document physical spaces. Also, the talk will cover different Open Source integration libs like OpenSfM, MapillaryJS and the iD editor.

uk: вхід без авторизації

name: Open Source Geospatial Foundation (OSGeo)


uk: Комп'ютерні науки

description: JTS is a well known Java library of spatial predicates and functions for processing geometry. JSTS has since 2011 provided a port of JTS to JavaScript that provides that proven library for use in browsers and other popular JavaScript runtimes. It brings the functionality of JTS to the browser without having to make a roundtrip to a server which enables advanced spatial operations to web applications even in offline conditions and is, for example, used by MapBox as a significant part of turf.js. The initial effort to create JSTS was a long, arduous and manual process and has since lagged behind JTS missing crucial new bug fixes and features. Resorting to additional manual porting effort was not in anyone's interest, it seems. Instead there was dreams of an automated translation from Java to JavaScript. In this talk I will explain how I managed to automatically translate JTS to create a new version of JSTS that supersedes the old manual port with a more complete, correct and up to date implementation.

uk: вхід без авторизації

name: Evolving JSTS to a modern port of JTS using AST transformation


keywords: Le Laboratoire des Sciences du Climat et de l'Environnement

uk: Комп'ютерні науки

description: Processing of climate data is often connected with big data processing, but a frequent problem is that users of the processing outcome are not optimally-equipped with appropriate hardware (computing and storage facilities) nor programming experience for software development to perform the processes themself. Web Processing Services (WPS) can close this gap and offer users a valuable practical tool to process and analyze big data. WPS represents an interface to perform processes over the HTTP network protocol, enabling users to trigger specific processes over a website. The appropriate processes are predefined, together with access to the relevant data archives where appropriate data are provided. This presentation is an introduction to the birdhouse project which provides WPS for climate data processing. Besides calling the WPS with Python libraries, birdhouse provides easy-to-use user-interfaces (web-based and command-line) to run WPS processes and combine them with climate data. The provided processes are reaching from simple climate metadata checks to complex climate impact models used e.g. in agriculture or forestry. The birdhouse is conform with the standardization defined by the Open Spatial Consortium (OGC) allowing combination with WPS from other institutions to establish a network of computing providers.

uk: вхід без авторизації

name: Birdhouse: A collection of web processing services for climate data


uk: Комп'ютерні науки

description: Have you ever been wondering what edits are happening inside your databases? Logcial Decoding, introduced in PostgreSQL 9.4, allows to keep track of changes commited to the database. This talk presents how this mechanism can be used to audit PostGIS/PostgreSQL databases. After an introduction to the concepts of logical decoding, two use cases are presented: Quality Assurance: writing an audit log into the database after each commit so that someone else can do a review of the modified data. Cache Invalildation: refreshing a GeoWebCache instance at the regions in which the data has changed after each commit. To support these two use cases, a little Java program able to be run as a mircoservice was developed and will be shared under an open source license with the community via github.

uk: вхід без авторизації

name: Auditing PostgreSQL Databases Using Logical Decoding


ORFEO ToolBox status report

uk: Комп'ютерні науки

description: Orfeo ToolBox (OTB) is an open-source C++ library for remote sensing images processing. It has been initiated and funded by CNES (French space agency) in the frame of a program named ORFEO to prepare, accompany and promote the use and the exploitation of the images derived from Pléiades satellites (PHR). Orfeo ToolBox aims at enabling large images state-of-the-art processing even on limited resources laptops, and is shipped with a set of extensible ready-to-use tools for classical remote sensing tasks, as well as a fully integrated, end-users oriented software called Monteverdi and also access via Quantum GIS processing module. This presentation highlights new features included in the last version of OTB, mainly major improvements of the classification framework which facilitate large scale analysis for automatic image mapping, new methods for SAR image processing as well as a recap of the main features added in recent releases. It further shows the current and future directions of the project and opportunities for interested developers and users. The presentation will be also illustrate by example of how ORFEO ToolBox is used at CNES in the development of operational products, scale over France, like annual Land Cover Map or snow cover product to exploit ESA Sentinel missions provided with a free, full and open data policy adopted for the EU Copernicus program. Manuel Grizonnet (CNES)

uk: вхід без авторизації


uk: Комп'ютерні науки

description: One year ago, in the frame of the OSGeo incubation process, OTB team decides to initiate a Project Steering Committee to formalize the way that decisions are taken. It was largely inspired by existing governance in other OSGeo projects related to OTB like GDAL, Quantum GIS or GRASS. This initiative aims in encouraging people and organization to join the effort and participate more actively in the evolution and the decision process of the library. Most people well understand this approach and join the effort to provide high level guidance and coordination for the ORFEO ToolBox to guarantee that OTB remains open and company neutral. This presentation will come back on the set up of this open governance, how it improves the way that the project progress, how it could evolve in the future. It will be also the occasion to interact more largely about open governance and decision making processes in free and open source projects. Manuel Grizonnet (CNES)

uk: вхід без авторизації

name: One year of open governance for OTB: thoughts and context


uk: Комп'ютерні науки

description: hale studio is an open source environment for the analysis, transformation and publication of complex, structured data. We're developing hale studio since 2009 and have reached more than 5.000 downloads per year. Most of our users employ it to easily create INSPIRE data, CityGML models, or to fulfill e-Reporting duties. Some use it with BIM data, health data or even E-Commerce information. In the last year, hale studio has gained a number of headline features and improvements, such as integration with GeoServer app-schema and deegree's transactional WFS. We have also added support for more open formats, such as SQLite and SpatialLite, but also for enterprise formats such as Oracle Spatial and Esri Geodatabases. In this talk, we will provide a quick introduction to the declarative real-time transformation workflow that hale studio affords, highlight the latest developments and provide an outlook on the roadmap for 2016 and 2017. We will also highlight some of the most interesting projects our users are doing. Thorsten Reitz (wetransform GmbH)

uk: вхід без авторизації

name: hale studio: Effective Data Analysis and Transformation for Open Standards


uk: Комп'ютерні науки

description: Mapbender3 is a client framework for spatial data infrastructures. It provides web based interfaces for displaying, navigating and interacting with OGC compliant services. Mapbender3 has a modern and user-friendly administration web interface to do all the work without writing a single line of code. That sounds good and is fun! Mapbender3 helps you to set up a repository for your OWS Services and to create indivdual application for different user needs. The software is is based on the PHP framework Symfony2 and integrates OpenLayers. The Mapbender3 framework provides authentication and authorization services, OWS Proxy functionality, management interfaces for user, group and service administration. Mapbender3 offers a lots of functionality that can be individually integrated in applications like redlining, digitizer, search modules. Astrid Emde (WhereGroup Bonn)

uk: вхід без авторизації

name: Provide applications with Geoportal Framework Mapbender3


uk: Комп'ютерні науки

description: In 2011, the New Zealand Government released the Declaration on Open and Transparent Government, a directive to government agencies to establish open data programmes to enable data reuse, for the wider benefit of New Zealand. This presentation discusses one environmental research agency's approach to providing open data that is not just accessible, but genuinely reusable. Early feedback regarding the programme was positive - but there was a frequent question. Many potential users of open data have had no GIS background, and wanted help in finding tools, and training in the use of those tools to actually make use of the data. In answering this question, it became apparent that a genuinely successful open data programme has three components, with far too many such programmes stopping at the first: Discoverable, accessible metadata and data; Effective, available and affordable tools to work with the data, and; Affordable training for interested users in the use of the tools with the data. This presentation discusses this three pronged approach to an open data programme, actively enhancing and making use of open source and open standards to provide usable open data. One outcome of this programme is presented as “The Democratisation of GIS”, where open Source GIS tools are enabling GIS to become as pervasive as an office suite or web browser on a personal computer. Brent Wood (National Institute of Water and Atrmospheric Research (NIWA) New Zealand)

uk: вхід без авторизації

name: Open Source as part of an Open Data initiative.


uk: Комп'ютерні науки

description: The standard rendering style used in Openstreetmap today produces hardly readable maps in countries where the usage of latin script is not the norm, at least from an average westerners point of view. Our map style uses a renderer independent approach to solve this. We use localization (l10n) functions that create readable names. They are implemented as stored procedures in the PostgresSQL database which contains the Openstreetmap data. The targeted latin langage (german, english, …) can be easily selected. The talk will show how these functions currently work and will give an outlook on potential future extensions. In contrast to almost all legacy geographic data Openstreetmap does already contain a lot of localized data acquired by mappers from all around the world, which should be used whenever possible (Example: japan instead of 日本). Automatic transliteration can then be used as an alternative if no latin names are available in the database. Especially when using transliteration there are many pifalls which have to be addressed depending on language and country. Some of them have already been dealt with by the current implementation and are presented in the talk. Others, which appear difficult or impossible to solve are also shown. Another challenge which exists in localization of maps are political problems. I will briefly describe some of these issues at the end of my talk. Sven Geggus (Fraunhofer IOSB)

uk: вхід без авторизації

name: Towards a more readable Openstreetmap based world map for westerners


uk: Комп'ютерні науки

description: GDAL has a little-known feature vsistdout_redirect, which is a virtual file system driver that can redirect standard output to any GDAL virtual file. This feature is exploited in GDAL 2.1 Perl bindings to make streaming objects possible. Streaming objects are objects, which belong to a class, which implement 'write' and 'close' subroutines. Such objects happen to be important in modern Perl web middleware, code that are based on PSGI - Perl Web Server Gateway Interface Specification. In this talk I will present a suite of new Perl modules, which implement OGC geospatial web services. I have two of these modules already in production use, one for raster tile service and one for feature service. In this talk I will present and discuss how GDAL and Perl have made it easy to develop and extend these services. Ari Jolma (Private)

uk: вхід без авторизації

name: Geospatial web services using little-known GDAL features and modern Perl middleware


uk: Комп'ютерні науки

description: There has been no map for the forty-five bus lines in Metropolitan Managua, where around 1.5 million inhabitants are dependent on buses to commute to work or school. But engaged citizens used Free Technology and the power of collaboration to create the first complete public transportation map of a Central American capital, by using OpenStreetMap and through crowd-sourcing and also crowd-funding methods. We present the final products and talk about the publication of our outcomes as Open Data. We will also mention the local challenges and the nature of creating a map of informal transit information of a partially unregulated bus network It is a case study about Open Geo Software can empower people and enhance development, where information about transportation is lacking.

uk: вхід без авторизації

name: A crowd-sourced public transportation map for Nicaragua's capital


GDAL 2.1: what's new ?

keywords: Spatialys NextGIS

uk: Комп'ютерні науки

description: Initiated in 1998, the GDAL/OGR (Geospatial Data Abstraction Library) library has dramatically grown, supporting from 20 raster and vector formats in its early 1.1 version to more than 220 in the latest v2.0 In the meantime, it has been successfully adopted by hundreds of software projects, being at the foundation of many GIS stacks. After a quick overview of the current capabilities, we will focus on recent developments and achievements that will be available in GDAL 2.1: new raster drivers (WMTS, Sentinel 2, …), new vector drivers (MongoDB, VDV-452, …), improvements in existing drivers (GeoJSON, PDF, ElasticSearch), management of the Measure dimension for geometries, support for geographic network models, availability of the C++ command line utilities as library functions usable in different programming languages, ... Finally, we will explore potential future directions for the project. Even Rouault (Spatialys) Ari Jolma (Private) Dmitry Baryshnikov (NextGIS)

uk: вхід без авторизації


Effects of Opening up Data

uk: Комп'ютерні науки

description: In 2013 the Danish Government freed most of the basic data in Denmark under the "Basic Data Program"-program. My talk will go through the effects we have experienced so far; The release of data has not only changed what we can do for both private and public sector clients, it has also changed how we do it. As data is now free, we do not have to wait for public sector clients to approach us with ideas - we can now approach all types of clients with products and proposals of our own. An apparently tiny thing as being able to product develop on our own, has turned the business model upside down in many instances. Although you cannot sell a free beer, you can sell the knowledge of how to open the free beer, or a ready-to-use bottle opener, and possibly some consulting on how you can get to enjoy the free beer the most. The wider use of data has also meant that public servants have had to adapt; to face fear of errors and ever more demanding "customers." It is important to acknowledge that opening data up has consequences that public servants need to face. (Hans) Gregers Petersen (Septima)

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Too often geospatial data is treated in an ephemeral manner. Its metadata is missing, it is hard to find, and usually it is not preserved. Stanford University Libraries presents an approach for preservation, access, and discovery of geospatial data and maps in a digital repository. This community approach uses a sustainable, collaborative ecosystem of existing open-source software projects and standards, while also developing new FOSS4G tools to fill gaps. These new tools include GeoBlacklight and OpenGeoMetadata. Presented topics will include an overview of geospatial data in a digital repository, an introduction to the tools that make it possible, a live demonstration, and discussion about the role of libraries and repositories within the FOSS4G community. Jack Reed (Stanford University)

uk: вхід без авторизації

name: Durable geospatial data and the budding open-source ecosystem driving it


Software comes and goes. Mind the Data!

uk: Комп'ютерні науки

description: Software developers complain about wrong data. It just does not comply to the specs. It is a complete mess. The owners of the data do not understand the agitation because they have worked with some odd, old software for ages and it sort of always worked out. Why change now? The meta of the data sits in the mind of so many people but has never been organized and fixed (to fit into your software). The Data Monger on the other hand has the same problems but the other way round. The data does not download, the encoding is wrong, the coordinate system is screwed and at the end all the decimals are cut off. Who is right? It is always the data owner! Because software comes and goes, the data stays. This talk is a plea to mind the data. Remember this: Never use software that does not work on open formats. Really open. Like in Open Source but even better. Arnulf Christl (Metaspatial)

uk: вхід без авторизації


Routing for Driving Pleasure

uk: Комп'ютерні науки

description: Americans have miles and miles of open highways. Set the cruise and drive for hours in straight lines. Routing a user to find the fastest way from an origin to a destination is performed by any number of providers. But what if you're not interested in the shortest route? What if you're looking for the most scenic route? The most entertaining? This is a problem for planners of regularity rallies. Planners hope to provide challenging roads at legal speeds that avoid heavily residential and developed areas. OpenStreetMap, PostGIS, QGIS, and pgRouting to the rescue! Learn how to create alternative routing-cost structures to find and create new types of routes. An affinity for routing, driving, and/or gravel roads a plus. Dan "Ducky" Little (dbSpatial LLC)

uk: вхід без авторизації


Open Source Motorsports

uk: Комп'ютерні науки

description: No, it's not the Stig. It's the Stig's Open Source Cousin! Hear from an actual racing driver how open source software can be used to take an average driver and turn them into a hero. Open source software and hardware is used to run the fuel injection system (MegaSquirt), model aerodynamics (MatPlotLib, OpenFOAM), log g-forces in real-time (RaspberryPi, Arduino), and track the car's telemetry and performance over time (PostGIS, QGIS). This presentation covers the accessibility and use of technologies once thought only available to F1 and NASCAR teams! Links to project: Project has not yet been released. It will be by the time of the conference Dan "Ducky" Little (dbSpatial LLC)

uk: вхід без авторизації


Automating your analysis using SAGA Gis

uk: Комп'ютерні науки

description: SAGA (System for Automated Geoscientific Analyses) is an open source geographic information system (GIS) used for editing and analysing spatial data. It includes a large number of modules for the analysis of vector (point, line and polygon), table, grid and image data. Among others the package includes modules for geostatistics, image classification, projections, simulation of dynamic processes (hydrology, landscape development) and terrain analysis. The functionality can be accessed through a GUI, the command line or by using the C++ API. SAGA has been in development since 2001, and the centre of SAGA development is located in the Institute of Geography at the University of Hamburg, with contributions from the growing world wide community. This presentation will show some of the newer modules of SAGA and how these can be combined to scripts and toolchains to reproduce different steps of an analysis.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: In the crowd of NoSQL data storage solutions that support spatial data, graph databases are one of the more fascinating technologies. Their data model is easy to understand and provides a high flexibility for handling deeply nested relationships. In this session I will introduce different case studies where graph databases have been used in research projects at Beuth University: As an integration layer for querying metadata of different data stores (Neo4j). As a routing engine (part of the Smart Data Project ExCELL (Neo4j)). As a plattform for generic mapping of standardized OGC data models (e.g. SensorML, CityGML) (Neo4j, ArangoDB, Jsonix) (running master thesis). We will discuss the strengths and drawbacks of each approach in order to give a proper answer to the talk's title. Felix Kunde (Beuth University of Applied Science)

uk: вхід без авторизації

name: How GIS-friendly are Graph Databases today?


3D Tools in gvSIG using NASA World Wind

keywords:
gvSIG Association
SCOLAB / gvSIG Association

uk: Комп'ютерні науки

description: In gvSIG 2.2 was integrated the library NASA World Wind, adding the feature to see 3D Views in gvSIG. This way we can choose between 3D spherical and 3D flat views, allowing us to work with all potential of gvSIG and visualizing our data in 3D, using the Digital Terrain Model provided for Nasa Worl Wind or any other that the user selected. With this presentation we want to show you the improvements that have been developed this last months around this module, increasing the potential of gvSIG 3D: support for vectorial data, Lidar 3D, extrusion, automatic height detection of buildings, animations, temporal dynamic layers on the data base, simbology and 3D labeling. Also, we will see how to exploit all the opportunities that bring us this 3D Module from Scripting. Óscar Martinez Olmos (gvSIG Association) Cesar Martinez Izquierdo (SCOLAB / gvSIG Association)

uk: вхід без авторизації


A RESTful API for linking geodata

uk: Комп'ютерні науки

description: Publishing open data is a trend movement but still nowadays geographical information are often released as shapefiles despite this common format isn't recommended for such scope. We have used GeoNode, a spatial data infrastructure for publishing open geodata through standard OGC Web Services, with a RESTful API to model such resources to the semantic interoperability. GeoLinkeData is a django application based on a GeoNode template that allows to publish interlinked shapefiles as triple stores and search them with GeoSPARQL queries from a Virtuoso backend. Francesco Bartoli (Geobeyond Srl)

uk: вхід без авторизації


uk: Комп'ютерні науки

description: OpenLayers 3 uses the Closure Compiler to compile JavaScript to better JavaScript. Developed by Google, the Closure Compiler is more than just a code minifier. Variable and function names are not only shortened, based on static code analysis a number of optimizations are applied, like dead-code removal or function inlining. Of special interest is the type checking and a syntax check which allows to detect errors at an early stage which otherwise would only emerge during runtime. You can use OpenLayers 3 without getting in touch with the Closure Compiler. But once you compile your application together with OpenLayers, you will benefit from a few interesting advantages. First, because the compiler removes unused code, only that part of OpenLayers that is actually used in your application, will be included in the build. Because only a fraction of the extensive functionality of OpenLayer is often required, the build size can be reduced considerably which results in faster loading times. The compilation of your application together with OpenLayers also makes it easier to extend OpenLayers with custom components. Notably, the application code is also analyzed and checked by the Closure Compiler, so that you benefit for example from the type checking. This talk introduces the Closure Compiler, which offers a robust platform for the development of complex web-mapping applications with OpenLayers. Advantages, special characteristics and experiences from own projects will be presented. Tobias Sauerwein (Camptocamp) Beraudo Guillaume (Camptocamp)

uk: вхід без авторизації

name: Faster, smaller, better: Compiling your application together with OpenLayers 3


RESTful Geoprocessing API

uk: Комп'ютерні науки

description: We are seeing an increasing demand for a standardized REST binding for web-based geoprocessing. In this talk, we will present the ongoing discussions and developments that will lead to a RESTful binding for WPS 2.0. In the ongoing OGC Testbed-12, REST bindings for different OGC Web Services, among them WPS, will be developed and described in Public Engineering Reports. 52°North is leading the developments regarding WPS. However, this effort will need the support of the interested communities inside and outside the OGC. We want to use this talk to inform the audience about our concepts for a RESTful Geoprocessing API and we are eager to getting input for the way to go. Benjamin Pross (52°North GmbH)

uk: вхід без авторизації


MapFish Print 3: Reporting meets maps

uk: Комп'ютерні науки

description: Generating reports is an important feature in many web-mapping applications. MapFish Print 3 is an interesting tool for this job. The project MapFish Print project consists of a Java library and a web application for generating reports with maps from many different raster and vector sources, like WMS, WMTS, tile services, WFS or GeoJSON. The integration with the reporting engine JasperReports facilitates the creation of complex reports. A WYSIWYG report designer makes it easy to layout report templates and to position tables, graphics, diagrams, sub-reports, maps or map components like scale-bars or legends. This talk introduces MapFish Print 3 and addresses the following topics: The architecture of MapFish Print 3 The configuration of report templates Using the report designer Examples for complex reports JavaScript libraries that ease the integration with OpenLayers projects Upgrade from the previous version New features and current developments Tobias Sauerwein (Camptocamp) Marion Baumgartner (Camptocamp)

uk: вхід без авторизації


Develop without developing

uk: Комп'ютерні науки

description: As a gis manager in a city you often don’t have time or resources to do coding. But with powerful tools like Qgis and PostGIS you maybe not need to. In Kristianstad, Sweden, we had an outdated system for greenspace management. We were not satisfied with the commercial options. Thus we decided to build the new system in Qgis and PostGIS with just standard functionality such as spatial queries, forms, relations etc. I will present the work and some technical hints. Quite simple but yet powerful solution. No need to overdo things. Karl-Magnus Jönsson (Kristianstads kommun)

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Soil data is crucial for environmental studies and analysis, but access to it and proper exchange formats and mechanisms are still poorly developed. The OGC Soil Data Interoperability Experiment (SoilIE), undertaken in the second half of 2015, had the objective of developing and testing a soil standard that harmonised existing standards defined in Europe and Oceania. During the SoilIE, participants from Europe, North America and Oceania mapped data in their soil databases to the SoilIE XML schema. Multiple OGC Web Feature Services (WFS) delivering soil observation data using the XML schema were established, along with OGC Web Processing Services to allow on-line derivation of new data. The SoilIE was successful with access to data in multiple clients from multiple soil data providers, each using different software configurations. The interoperability results will be presented along with next steps on progressing the SoilIE XML schema, RDF vocabularies, linked data and remaining major issues. Jorge Samuel Mendes de Jesus (ISRIC — World Soil Information)

uk: вхід без авторизації

name: OGC Soil Interoperability Experiment - Experiences in using a standard to exchange soil data


uk: Комп'ютерні науки

description: This presentation will provide the attendee with an introduction to data processing in GeoServer by means of WPS, rendering transformations and SQL views, describing real applications and how these facilities were used in them. We'll start with the basic WPS capabilities, showing how to build processing request based on existing processes and how to build new processes leveraging scripting languages, and introducing unique GeoServer integration features, showing how processing can seamlessly integrate directly in the GeoServer data sources and complement existing services. We'll also discuss how to integrate on the fly processing in WMS requests, achieving high performance data displays without having to pre-process the data in advance, and allowing the caller to interactively choose processing parameters. While the above shows how to make GeoServer perform the work, the processing abilities of spatial databases should not be forgotten, so we’ll show how certain classes of processing can be achieved directly in the database. At the end the attendee will be able to easily issue WPS requests both for Vectors and Rasters to GeoServer through the WPS Demo Builder, enrich SLDs with on-the-fly rendering transformations and play with SQL views in order to create dynamic layers. Andrea Aime (GeoSolutions)

uk: вхід без авторизації

name: Crunching Data In GeoServer: Mastering Rendering Transformations, WPS Processes And SQL Views


uk: Комп'ютерні науки

description: Various software can style maps and generate a proper SLD document for OGC compliant WMS like GeoServer to use. However, in most occasions, the styling allowed by the graphical tools is pretty limited and not good enough to achieve good looking, readable and efficient cartographic output. For those that like to write their own styles CSS also represents a nice alternatives thanks to its compactness and expressiveness. Several topics will be covered, providing examples in both SLD and CSS for each, including: mastering multi-scale styling, using GeoServer extensions to build common hatch patterns, line styling beyond the basics, such as cased lines, controlling symbols along a line and the way they repeat, leveraging TTF symbol fonts and SVGs to generate good looking point thematic maps, using the full power of GeoServer label lay-outing tools to build pleasant, informative maps on both point, polygon and line layers, including adding road plates around labels, leverage the labeling subsystem conflict resolution engine to avoid overlaps in stand alone point symbology, blending charts into a map, dynamically transform data during rendering to get more explicative maps without the need to pre-process a large amount of views. The presentation aims to provide the attendees with enough information to master SLD/CSS documents and most of GeoServer extensions to generate appealing, informative, readable maps that can be quickly rendered on screen. Andrea Aime (GeoSolutions)

uk: вхід без авторизації

name: Creating Stunning Maps in GeoServer: mastering SLD and CSS styles


uk: Комп'ютерні науки

description: OSRM has rapidly become the solution of choice for open-source routing. However, probably its single most important drawback is the requirement to rebuild a significant part of the routing graph whenever something changes in the street network. An open source solution able to exploit dynamic networks seamlessly does already exist: pgRouting. We have developed a tool that allows loading an OpenStreetMap dump directly into the format required by pgRouting. In order to take advantage of the new turn-restriction shortest path algorithm, the tool also converts all possible restrictions in the appropriate format, while migration from OSRM was streamlined by using a very similar configuration file. To illustrate the advantages of dynamic networks we also built a simple OpenLayers 3 tool that allows the user to define blockage zones and determine optimal routes avoiding them. Furthermore, in order to provide a fully open-source routing suite, we developed an OL3 tool, along with the support backend functions, that enable the calculation of much more realistic drive-time polygons (when compared with the current capabilities of pgRouting). Daniel Urda (Teamnet Solutions International ) Florin Iosub (Teamnet Solutions International)

uk: вхід без авторизації

name: The secret story of real time routing told by OpenStreetMap, pgRouting and OpenLayers

name: Open Source Geospatial Foundation (OSGeo)


GeoNetwork: State of the Art

keywords:
GeoCat bv
titellus
GeoCat B.V.

uk: Комп'ютерні науки

description: On the last couple of years, GeoNetwork has evolved a lot. What are the latest features? What challenges are their developers facing now? Where are metadata catalogs heading to? Can we merge the tradicional spatial data with the most modern open data technologies? Are data catalogs deprecated or are they still useful? María Arias de Reyna (GeoCat bv) Francois Prunayre (titellus) Jose García (GeoCat bv) Juan Luis Rodríguez (GeoCat B.V.) Paul van Genuchten (GeoCat bv)

uk: вхід без авторизації


Spatial data and the Search engines

keywords:
GeoCat bv
interactive instruments
Linked Data Factory
GeoCat

uk: Комп'ютерні науки

description: Why is it so hard to discover spatial data on search engines? In this talk we'll introduce you to an architectural SDI approach based on FOSS4G components, that will enable you to unlock your current SDI to search engines and the www in general. The approach is based on creating a smart proxy layer on top of CSW and WFS which will allow search engines (and search engine users) to crawl CSW and WFS as ordinary web pages. The research and developments to facilitate this approach have been achieved in the scope of the testbed "Spatial data on the web", organised by Geonovum in the first months of 2016. The developments are embedded in existing FOSS4G components (GeoNetwork) or newly released as Opensource software (LDproxy). We'll introduce you to aspects of improving search engine indexing and ranking, setting up a URI-strategy for your SDI, importance of URI persistence, introducing and testing schema.org ontology for (meta)data. We’ll explain that this approach can also be used in the context of linked data and programmable data, but it is important not to mix it up. María Arias de Reyna (GeoCat bv) Clemens Portele (interactive instruments) Joana Simoes (GeoCat) Lieke Verhelst (Linked Data Factory) Paul van Genuchten (GeoCat bv)

uk: вхід без авторизації


Free, Open and Libre

uk: Комп'ютерні науки

description: What are the differences between free and open source? Is it just a legal issue or does it have direct consecuences? Does it really matter if a software is free or open? Which one is better for my usecase? How does the difference affect us? And how does it affect private companies? But, above all, what is "libre"? Why do we even need a third word on this subject? Will it really make a difference? María Arias de Reyna (GeoCat bv)

uk: вхід без авторизації


uk: Комп'ютерні науки

description: After 5 years in production the open source based Pavement Management System for Ireland has amassed over 15 years of road-related data. The back-end mapping engine is powered by MapServer and we are looking to improve performance when dealing with more and more data. The talk will focus on how to set up Locust, an open source Python load testing tool, to automatically get average load times for each WMS and WFS layer from MapServer, and how many users MapServer can handle concurrently. A small open source project is currently being written to help this process. Whilst MapServer is the focus of the talk, any OGC-compliant server can be tested in the same way. The talk will then briefly run through a series of experiments to see how changing various components affects performance. These are: Running MapServer on Linux as compared to Windows Using the MapServer native SQL Server driver, and using the OGR driver Map file size Seth Girvin (Compass Informatics)

uk: вхід без авторизації

name: Stress Testing and Analysing MapServer Performance


From outer space to your browser

uk: Комп'ютерні науки

description: With the Copernicus programme of the European Union everybody can access remote sensing data produced by the so called "Sentinels", the satellites designed for observing the earth from space. The data can be accessed in raw state or via Copernicus Services which are dedicated to a certain topic. But if you would like to extract certain information, you need to process the raw data. How would it be possible to use open source software to process the raw data and then make it available for further use, e.g. in the web by using open geospatial web standards? This talk presents a webmapping client containing footprints of all currently available Sentinel 2A scenes which you can filter and select and send a job which processes this scene including download, atmospheric correction and several image processing algorithms (e.g. NDVI). When the job is done the processed scene will be loaded in the web client, published as an OGC web service which makes it reusable elsewhere. The client is built using OpenLayers3, ExtJS6, GeoExt3 and BasiGX. The processing is done with sen2cor, GDAL and GRASS GIS. The product is published with GeoServer.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: Recently, the OSGeo wiki was updated from an ancient version to the current LTS release of MediaWiki. This update broke the functionality of the first OSGeo wiki usermap implementation, dating back to 2008. The map shows the location of OSGeo members on a web map integrated into the wiki. A new version of the usermap was implemented based on Semantic Mediawiki (SMW) to replace the first usermap. This presentation will describe the new features and possibilities that SMW adds to the OSGeo Wiki. After a short introduction to SMW, based on the OSGeo member model, that recently replaced the old usermap, a basic data model and its use in the wiki, as well as major features of SMW are explained. The datamodel development approach, using mobo, applied for implementing the OSGeo Members map will be explained briefley. Additionally, simple examples for bootstrapping smaller semantic models are given too. The presentation concludes with ideas for further applications of SMW in the OSGeo wiki, like the already implemented Advocate and Board lists pages, as well as possible applications, for example a collaboratively maintained OSGeo/FOSS4G service provider directory, or even a collaborative open geospatial data directory are proposed or suggested.

uk: вхід без авторизації

name: SMW @ OSGeo Wiki – How semantics improve the wiki and facilitate a collaborative database for OSGeo


keywords: German Federal Office for Radiation Protection

uk: Комп'ютерні науки

description: On of the task areas of the German Federal Office for radiation protection (BfS) in an case of a radiological emergency is to collect available and capture own relevant data, process and evaluate these and create documents including the necessary information to enable the crisis unit to make the right decisions for emergency preparedness and response. Some time ago, the BfS started to migrate from a proprietary monolithic system to an approach combining several OSGeo projects into a whole emergency system, including PostGIS, GeoExt, OpenLayers3, Geoserver, GeoNetwork and MapfishPrint and other software even from non-Geo but Open Source projects. To fill missing links between software components and to meet all demands of radiological disaster management, the BfS does not only use Open Source GIS software, but started several own software projects using free licenses as well. To seriously follow the Open Source strategy the BfS started to publish some of its projects using GitHub as a commonly used platform for Open Source projects, but not a common way for a federal office. The talk presents GitHub-driven Open Source projects of the BfS embedded in an OS driven software stack using several well known OSGeo projects.

uk: вхід без авторизації

name: Open Source strategies in a federal office - migrating from closed software to OS development


keywords:
HydroloGIS
Free University of Bolzano

uk: Комп'ютерні науки

description: In 2014 we started the development of the library LESTO (LiDAR Empowered Sciences Toolbox Opensource): a set of modules for the analysis of LiDAR point cloud with an Open Source approach with the aim of improving the performance of the extraction of the volume of biomass and other vegetation parameters on large areas for mixed forest structures. LESTO contains a set of modules for data handling and analysis implemented within the JGrassTools spatial processing library. The main subsections are dedicated to: preprocessing of LiDAR raw data (LAS), creation of raster derived products, normalization of the intensity values and tools for extraction of vegetation and buildings. The core of the LESTO library is the extraction of the vegetation parameters. We decided to follow the single tree based approach and implemented the extraction of tops and crowns from local maxima, the region growing method and the watershed method, all can be applied on LiDAR derived raster datasets as well as point clouds of raw data. An automatic validation procedure has been developed considering an Optimizer Algorithm based on Particle Swarm (PS) and a matching procedure which takes the position and the height of the extracted trees respect to the measured ones and iteratively tries to improve the candidate solution changing the models' parameters. On a watershed level, the resulting extracted trees with position and main characteristics, can be used for forestry management or for the evaluation of natural hazards (hillslopes stability, large wood transportation during floods).

uk: вхід без авторизації

name: Spatial tools for LiDAR based watershed management and forestry analysis integrated in gvSIG


uk: Комп'ютерні науки

description: Geopaparazzi is an application for fast field surveys. Its simplicity and the possibility to use it on as good as any android smartphone makes it a trusty field companion for engineers and geologists, but also for tourists who wish to keep a geodiary and any user that needs to be aware of his position even in offline mode. In Geopaparazzi it is possible to create text and picture notes and place them on the map. Notes can also be complex and form based in order to standardize surveys in which many people need to be coordinated. The data collected in the field can be directly exported from Geopaparazzi as KMZ or GPX. The plugin for Geopaparazzi in gvSIG supplies an userfriendly GUI with GIS functionalities to visualize all the data collected in the field, GPS tracks, text notes, pictures and form based notes and gives the possibility to save them as shapefiles. It works as a useful and fast tool to check the data collected in the field within a GIS directly from the file of the Geopaparazzi project without the need to export and save different shapefile. With this tool it is also possible to share projects with others, check the contents and periodically verify the results of the surveys.

uk: вхід без авторизації

name: Digital field mapping with Geopaparazzi and gvSIG


name: Department for Earth Observation Eberle, Jonas (University of Jena)

keywords:
University of Jena
Department for Earth Observation

uk: Комп'ютерні науки

description: Earth Observation time-series data are valuable information to monitor the change of the environment. But access to data and the execution of analysis tools are often time-consuming tasks and data processing knowledge is required. In order to allow user-friendly applications to be built, tools are needed to simplify the access to data archives and the analysis of such time-series data. In this work, web services for accessing and analyzing MODIS, Landsat, and Sentinel time-series data have been developed based on the Web Processing Service specification of the Open Geospatial Consortium and made available within the Earth Observation Monitor framework. The Python library "pyEOM" has been developed to combine access and analysis tools for Earth Observation time-series data. Algorithms developed to analyze vegetation changes are provided as web-based processing services in connection to the prior developed access services as well. Using the services developed, users only need to provide the geometry and the name of the dataset the user is interested in; any processing is done by the web service. The services and applications (web and mobile) are based on geospatial open source software.

uk: вхід без авторизації

name: Standard-compliant geoprocessing services for Earth Observation time-series data access and analysis


Using and extending GeoPackages

uk: Комп'ютерні науки

description: GeoPackage is an OGC standard combining vector data and raster tiles in a single database file. Since its official publication in February 2014 adoption has grown very quickly and the new format got support by most major Open Source and proprietary software products. Its combination of easy distribution and efficient use thanks to an SQL interface makes it interesting in a wide range of usage scenarios from embedded devices up to Open Data portals. This presentations shows the current state of support in Open Source applications like GDAL and QGIS, but also covers recent and planned extensions of the format. Examples are the proposed GeoPackage Elevation Extension, an extension for storing point cloud data and the recent QGIS all-in-one GeoPackage format. The latter implements storing map styling information right in the GeoPackage file, allowing to distribute a dataset together with map views and print layouts in one file.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: The QGIS Lessons plugin allows users to interactively run lessons and tutorials from QGIS. It automates certain steps such as data loading or preparing the QGIS interface, and leaves other steps to be manually executed by the user. This way, it is ideal for self-paced tutorials and allows the user to focus on the most important steps and concepts. The Lessons plugin also includes functionality to easy create new lessons, with tools that capture user interaction or automatically create screenshots of the QGIS interface. New lessons them can be shared as QGIS plugins, and our goal is to promote the usage of the Lessons plugin and have a large collection of free lessons that cover most of the QGIS functionality.

uk: вхід без авторизації

name: QGIS Lessons plugin. A new way of teaching QGIS


uk: Комп'ютерні науки

description: At the Joint Research Centre (JRC), scientists involved in maritime situational awareness are confronted with a growing volume of data. Every day millions of ship positions from terrestrial and satellite receivers are gathered globally and in real-time, as well as optical and radar Earth Observation images, leading to a significant variety of data. To support the researchers, policy makers and operational authorities in their activities a analysis platform with WebGIS functionality has been developed with the aim of turning data into valuable information and demonstrating pre-operational tools for maritime awareness. The platform is mostly based on FOSS software and consists of a front-end visualization tool and a back-end analysis engine. Fusion algorithms provide the ability to integrate data from multiple sources on the fly. A series of tools provide predictive analysis, activity mapping, anomaly detection, and cross disciplinary information, to support maritime security and safety and to improve marine knowledge. The web application is developed using open source programming languages (e.g. Javascript, Python), frameworks (e.g. Django, Geoserver), and interchange data format (JSON) to enable researchers to seamlessly integrate ad hoc algorithms developed in scientific languages (e.g. R, Matlab). A case study will be presented, showing examples of how the WebGIS architecture can provide visualisation and analysis tools to support decision makers and scientific and operational actors in the fields of fisheries science, maritime spatial planning, and maritime surveillance.

uk: вхід без авторизації

name: The Blue Hub, an integrated analysis platform with a WebGIS front-end to exploit maritime Big Data


uk: Комп'ютерні науки

description: GeoDCAT-AP is an extension of DCAT-AP for describing geospatial datasets, dataset series, and services. It provides an RDF syntax binding for the union of metadata elements defined in the core profile of ISO 19115:2003 and those defined in the framework of the INSPIRE Directive. Its basic use case is to make spatial datasets, data series, and services searchable on general data portals, thereby making geospatial information better searchable across borders and sectors. This can be achieved by the exchange of descriptions of datasets among data portals.

uk: вхід без авторизації

name: Integrating the spatial web with linked open data using GeoDCAT-AP


Command Line Geography

uk: Комп'ютерні науки

description: The keyboard is the new compass ! In this entertaining session, we will see how our beloved shell can fit into the workflow of the modern cartographer in the most surprising ways, and we will generate maps in the least expected places (your terminal, your desktop, your IDE...) analyse and visualise geo data with expressive SQL one-liners ; manipulate file formats with shell I/O and useful libraries ; geocode with the blink of an eye (or with your voice) ; make ASCII and emoji maps ; transform Atom into a supercharged geo IDE ; set up the perfect web mapping project environment in seconds ; and many more ! The CartoDB SQL APIs, along with the CartoDB Node client, SQL and PostGIS, plus a host of other open source libraries (GDAL, CSVKit, Yeoman...), will be showcased as the "survival kit" for the hurried but demanding mapper.

uk: вхід без авторизації


Sensor Web for Oceanology

uk: Комп'ютерні науки

description: In the marine community, observation data sets are a critical input for many scientific questions. Thus, significant investments are made in equipment and data acquisition technology. To ensure that the collected data is efficiently used by a larger number of researchers, the interoperable sharing of observation data is getting more attention in recent time. This presentation introduces open source Sensor Web components from several European projects such as NeXOS, FixO3, BRIDGES and ODIP II that cover different requirements for Sensor Web technology in marine applications. On the one hand there are server-side tools such as the 52°North Sensor Observation Service which facilitate the publication and download of marine observations. On the other hand this is complemented by tools such as the 52°North JavaScript SOS Client, which offers a lightweight approach to explore and visualise observation data sets generated by mobile (e.g. research vessels) as well as stationary sensors (e.g. buoys). In our presentation we will introduce the basic principles of an interoperable Sensor Web infrastructure for Oceanology as well as show how this infrastructure can be implemented using the open source software components of 52°North. Simon Jirka (52°North Initiative for Geospatial Open Source Software GmbH) Matthes Rieke (52°North GmbH)

uk: вхід без авторизації


name: Inc. Terner, Michael (Applied Geographics

keywords:
Applied Geographics
AppGeo

uk: Комп'ютерні науки

description: The cloud and open source software have fueled a wave of innovation that has enabled both large and small companies to bring products to market more easily and with less cost and friction than ever before. This talk will describe our journey to bringing such a new product to market. In 2014 Google began selling its high resolution imagery and purchasers received the data as large buckets of files deployed within Google’s Cloud Platform (GCP). This opened a requirement for high performance serving of that imagery via the Open Geospatial Consortium’s (OGC) WMS and WMTS standards. This talk will describe the process of a small company developing this image serving technology by both incorporating and contributing to open source and geo open source initiatives. The talk will describe the market opportunity for the new product as well as the business case that led us to choosing an open source approach even for something that is ultimately sold. The talk will also describe the Node.js technical approach that was chosen and the array of geo tools, such as Mapnik and PostGIS, and other open javascript frameworks (e.g. Bootstrap, Handlebars.js, etc.) that underpin the solution. The talk will also highlight our development team’s open source contributions back to projects and the community. The talk will conclude with a description of the lightweight server and its features that enable an “imagery as a service” business model that daily serves hundreds of users in Utah and Texas.

uk: вхід без авторизації

name: The economics of bringing a new geo product to market by leveraging open standards, FOSS and FOSS4G


QWCII: A new QGIS Web Client

name: GIS-Fachstelle Neumann, Andreas (Kanton Zug)

keywords:
Kanton Zug
GIS-Fachstelle
Kristianstads kommun

uk: Комп'ютерні науки

description: QGIS Web Client (QWC) is a Web-GIS client based on OpenLayers 2 and ExtJS and tailored to use special extensions of QGIS Server, such as extracting information from QGIS Project settings, extended GetFeatureInfo Requests, GetPrint and DXF export. It uses standard WMS/WFS commands, but extends them where needed. QWC is used by several cities and provinces in Europe. There are four main reasons why QWC needs to be overhauled: The code structure is not very modular and should be better structured. QWC only works well on Desktops. Despite a separate mobile web client based on OpenLayers 3 and jQuery Mobile, for maintenance reasons it would be much better to have a single web client that uses responsive design and works for all devices from a single viewer. The base libraries ExtJS 3.4 and Openlayers 2 have been phased out and there are newer versions available. However, the upgrade to the newer versions is not trivial. Having a more modern foundation based on newer web technologies This presentation discusses the requirements, the progress of this project, technical decisions taken and challenges solved during the project. While the first goal of the project is to establish a modern foundation for the coming years and reach feature parity with the old QWC project, it is already planned to implement a QWCII python plugin that offers a GUI and assists with the global configuration of the client. This tool should also facilitate the management of topics and projects.

uk: вхід без авторизації


uk: Комп'ютерні науки

description: While GIS is a term whose use has now been consolidated for years now, BIM is a term whose use is increasingly widespread over the past few years. The both deal with geo-localized "objects", so the ongoing studies for a common point of the GIS and BIM different views of the same object is somewhat unavoidable. A first attempt at integration information belonging from these two worlds is presently under way in the framework of EU funded DIMMER project. This project integrates BIM, district level 3D models with near-real time data from sensors and user feedback in order to analyze and correlate buildings utilization, and to provide information about energy-related behaviors to users and other stakeholders. From the point of view of technology, the project uses open source technologies such as Java, Leaflet and Cesium, as far as GIS is concerned: here you're an architectural schema. The web application integrated GIS data read directly from a POSTGIS data base, with data flows from BIM services, near-real time data from sensors distributed over the territory under examination, and on line processed indexes/calculations. The present version of the project makes it possible to consult sensor information in near-real time, as well as the other processed calculations/indexes, through a web dashboard that includes as primary elements both a 2D map (based on Leaflet), as well as a 3D map (based on CesiumJS).

uk: вхід без авторизації

name: Trying to visualize GIS & BIM information on the web: a solution using Leaflet and Cesium


Interoperability with OpenLayers 3

uk: Комп'ютерні науки

description: This talk will focus on the many ways that OpenLayers 3 can integrate with different systems out there. Some of the abilities are integrated into the library itself, think of open standards such as WMS, WMTS, KML, GeoJSON. Other ways to provide integration is through external libraries such as ole, which integrates with Esri ArcGIS REST services (Map Services and Feature Services), or JSONIX to provide parsing (and serialisation) of a huge amount of OGC standards.

uk: вхід без авторизації


Create Vector Tiles from OpenStreetMap

uk: Комп'ютерні науки

description: The OSM2VectorTiles project offers free downloadable vector tiles ready to use by people interested in hosting custom base maps on their own infrastructure. The whole world fits on a USB stick and can be served from an ordinary web hosting and styled and enriched to make beautiful and fast maps for web and mobile applications. The advantages of vector tiles over traditional raster tiles are well known. There are already a handful of vector tile provider present, but they may not always serve your use case optimally. After this talk you will know how to create your own custom vector tiles based on OpenStreetMap and will know the tools and processes you need to use. The talk will cover how to import OpenStreetMap data into PostGIS and then shows how to generate vector tiles using Tilelive and Mapnik. We will present the open source workflow we use at OSM2VectorTiles to prerender global vector tiles and instruct you how to adapt the workflow to create custom vector tiles. Thanks to Docker and tools such as Mapnik, PostGIS, Tilelive and Mapbox Studio Classic the process is straightforward and repeatable. Manuel Roth (HSR University of Applied Science Rapperswil Switzerland) Lukas Martinelli (HSR University of Applied Sciences Rapperswil Switzerland) Petr Pridal (Klokan Technologies GmbH)

uk: вхід без авторизації


QGIS what's new

uk: Комп'ютерні науки

description: Since FOSS4G 2015, two new QGIS versions have been released. At the time of the FOSS4G 2016, it will even be three new releases. This presentation shows some highlights out of the huge number of new features. For instance the labeling system received a number of enhancements which might not be obvious for users by just looking at the GUI. Another major improvement is the new authentication system in QGIS 2.12. In the area of cartography, there is the new 2.5d renderer, which allows the display of 3D-like visual effects. And the release of 2.16 end of June 2016 will bring some other hightlights for sure.

uk: вхід без авторизації


name: University of Münster Nüst, Daniel (Institute for Geoinformatics)

keywords:
Institute for Geoinformatics
University of Münster

uk: Комп'ютерні науки

description: Docker is a growing open-source platform for building and shipping applications as cloud services in so called containers. But containers can be more than that! Following the idea of DevOps, Dockerfiles are a complete scripted definition of an application with all it's dependencies, which can be build and published as ready to use images. As each container is only running "one thing" (e.g. one application, one database, a worker instance), multiple containers can be configured with the help of docker-compose. More and more geospatial open source projects or third parties provide Dockerfiles. In this talk, we try to give an overview of the existing Docker images and docker-compose configurations for FOSS4G projects. We report on test runs that we conducted with them, informing about the evaluation results, target purposes, licenses, commonly used base images, and more. We will also give a short introduction into Docker and present the purposes that Docker images can be used for, such as easy evaluation for new users, education, testing, or common development environments. This talk integrates and summarizes information from previous talks at FOSS4G and FOSSGIS conferences, so I'd like to thank Sophia Parafina, Jonathan Meyer, and Björn Schilberg for their contributions.

uk: вхід без авторизації

name: An overview of Docker images for geospatial applications


keywords:
GeoCat
Universitat Pompeu Fabra

uk: Комп'ютерні науки

description: The increase in the scale of traditional data sources, along with an explosion in the availability of sensor data, have originated massive volumes of data, a great deal of which is actually geolocated. This is partly due to the wide adoption of cheaper position technologies, and to the exponential growing of Volunteered Geographic Geographic Information (VGI) movements, which rely on crowdsourcing approaches. Big Data has generated a lot of interest amongst industry, the developer community and the public in general, and it has been at the core of many technology innovations which took place recently (e.g.: NoSQL, MapReduce); these new approaches already started to involve the geo community with projects such as the ESRI Spatial Framework for Hadoop or GeoTrellis, just to mention a few. However, the focus has been mostly on storing data (at the infrastructure level) and using data (at the analysis level), leaving aside challenges such as discoverability, integration or security. In this talk, we will address some of these outstanding challenges through the use of metadata and the semantic web, and show how the use of a decentralized and standardized catalog can help to unlock the five V's of Big Data: Volume, Velocity, Variety, Veracity, and most importantly, Value.

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name: Leveraging Big Geo Data through Metadata

name: Open Source Geospatial Foundation (OSGeo)


keywords: GeoCat titellus

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description: In recent times, phenomenon such as the Internet of Things or the popularity of social networks, among others, have been responsible for an increase availability of sensor data and user generated content. To be able to ingest, store and analyze these massive volumes of information is a standing challenge that is no longer ignored. The data about this data is generally speaking, less of a problem, if we think for instance that trillions of sensor records, may share the same metadata record; for this reason catalogs have been less exposed to the challenges that took by storm the database community. Nevertheless, a large variety of datasets can also pose some performance challenges to traditional catalogs, and demand increase scalability. In this talk we will look at strategies for scaling GeoNetwork through load balancing, at its current limitations, and we will discuss potential improvements by adopting distributed search server technologies such as SOLR or ElasticSearch. On the database side, we will review the current database support, which is limited to ORM, and discuss the possibility of extending it to support NoSQL databases, which could be horizontally scaled, unleashing a new generation of metadata storage.

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name: Scalability of GeoNetwork: Current Status and Future Directions


uk: Комп'ютерні науки

description: The latest release of GeoServer adds support for creating Vector Tiles in GeoJSON, TopoJSON, and MapBox Vector Tiles format through its WMS service for all the vector data formats it supports. These tiles can be cached using GeoWebCache (built into GeoServer), and served with the various tiling protocols (TMS, WMTS, and WMS-C). Thanks to very recent OpenLayers 3 development, these Vector Tiles can be easily and efficiently styled on a map. This technical talk will look at how GeoServer makes Vector Tiles accessible through standard OGC services and how they differ from normal WMS and WFS usage. It will also look at how OpenLayers 3 - as a simple-to-use vector tiles client - interacts with GeoServer to retrieve tiles and effectively manage and style them. OpenLayer 3’s extensive style infrastructure will be investigated.

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name: Vector Tiles with GeoServer and OpenLayers


uk: Комп'ютерні науки

description: Many people will cite how their adoption of software was based on the quality of its documentation. At the same time, documentation can be one of the largest gaps in quality with an open source project. This talk will discuss why that is, what you (yes you) can do about it, and how the author has (so far) managed to avoid burnout by learning to (grudgingly) accept less-than-perfect grammar. Examples will include things done well and lessons learned, as well as humorous and painful failures, specifically from within the GeoServer community, where the author has lots of (perhaps too much) experience.

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name: Still waiting for someone else to do it: Writing documentation for an open source project


QField, a touch driven QGIS interface

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description: Ubiquity: The ubiquity of mobile devices has seen a huge increase in the last years. With more than 2 billion mobile devices shipped 2015 and a growing market, such devices also become more important at the workplace. The geo stack: Thanks to its multi-platform nature and its broad feature set QGIS is one of the most widespread open source GIS applications and does a good job on the desktop. A native mobile touch interface for field based data review and acquisition is the missing bit in the open source geo stack. Core requirements: From developing QGIS for Android we have identified the core requirements for mobile applications. More than that, we have identified what must be avoided: complexity, small UI elements and project definition work. Less is more: Thanks to pre-defined modi for tasks like data acquisition and data review users can focus on the task at hand. Clear user interface elements and adaption of tools for touch input while offering great precision for coordinate recording with an intuitive interaction design make it a pleasure to use and an efficient tool. Synchronisation: To bring the data back into your infrastructure from the device we have developed a new offline synchronisation tool to allow seamless data exchange between the device and the existing geo infrastructure.

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description: A recap of a prototype project that was created for the NYC Department of Transportation to demonstrate the utility of Open Source routing applications in support of large vehicle permitting processes. The DOT asked us to review software options to support the creation of street route and turn by turn directions solutions for large vehicles entering the city of New York. They needed the solution to be performant, scalable, and to support the use of the city's LION dataset with the dynamic inclusion of street closures, turn restrictions, and weight and height restrictions based on analyst data entry. This session will cover the Open Source software we reviewed, our analysis process, and why we ultimately selected PgRouting from a group of candidates that included Open Source Routing Machine (OSRM), Valhalla, and GraphHopper. In particular we will discuss the tradeoffs between schema, data, link traversal costs, and restriction flexiblity and the performance gains offered by indexing solutions using Contraction Hiearchies.

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name: Open Source Street Routing With PgRouting For Local Government - Dynamic Data and Performance


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description: Effective Disaster Risk Management (DRM) programs can make a significant difference in how communities prepare and respond to disasters. Countries that are most vulnerable to natural hazards, but where fewer investments in DRM programs are made, often suffer from the inability to collect, share and effectively use available risk information. Contributing factors to the problem are the costs of procuring, managing and sharing data, the expertise and training required to analyze the information, and the poor implementation of interoperability standards. The Open Data for Resilience Initiative (OpenDRI) seeks to address these challenges by applying the concepts of open data, community mapping, and open source geospatial software with a keystone role. As a World Bank sponsored initiative, OpenDRI supports DRM programs across the globe to build capacity and long-term ownership of open data projects that rely on open source software like Geonode, QGIS, and InaSAFE. This talk will discuss: Benefits and advantages of using FOSS4G in DRM and development programs Key success stories from OpenDRI and Code for Resilience (CfR) projects Challenges and strategies in building sustainable open source communities for international development and DRM

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name: Building Sustainable Resilient Communities with FOSS4G and Open Data


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description: What is the difference between people that make maps and GIS people: GIS people waste much of their time dealing with spatial reference systems while people making maps just avoid them like the plague and instead focus on the projections they need to use to represent their data with. Most discussions on the topics of projections and spatial reference systems is mainly on the large number of small spatial reference systems each used by a limited number of groups. Work for the state of Massachusetts, use EPSG 2805, work for the Boston police? then you use EPSG 2249. This talk will focus on the gap between how projections work in theory vs how people constantly waste their time dealing with projections. Most of the mental energy spent on projections and spatial reference systems is spent on incompatible local systems used for storage of data, which are also known as internal details nobody should care about with disproportionate time spent converting between datums whose differences are smaller then the precision of the data.

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name: Nobody cares about your datum: or the Kleinstaaterei of spatial reference systems


name: The Netherlands Schmitz, Oliver (Utrecht University)

keywords:
Utrecht University
The Netherlands

uk: Комп'ютерні науки

description: Enriching patient information with environmental information such as individual exposure to air pollution or noise is a relevant procedure in health care and research. Generating this exposure information, however, is computationally intensive as the processing of large datasets with fine spatial and temporal discretisation is necessary; thereby usually exceeding hardware resources e.g. of family doctors. In an interdisciplinary research project (Healthy Urban Living) we develop an environmental modelling and information service (EMIS), consisting of these parts: a set of environmental models calculating exposure (e.g. NO2, PM10) on Dutch scale a set of algorithms to calculate exposure of individuals along their space-time paths a set a of microservices to maintain a flexible workflow in generating and executing queries The microservices architecture enables us to perform the computational intensive modelling tasks on institutional or national computing facilities, and allows lightweight client applications such as web portals to query the EMIS and thereby give health researchers straightforward access to exposure data. The presentation gives a general overview of the research project, the EMIS system architecture and outlines how open-source software tools (e.g. GDAL, PCRaster, flask, docopt, sqlalchemy and more) are used to process the spatio-temporal data sets. We additionally demonstrate use cases from the health researcher's perspective.

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name: An environmental modelling and information service for health analytics


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description: This presentation details some OpenSource tools dedicated to water network management, be it for water distribution or wastewater networks. The qWAT project is a specific tool based on QGIS and PostGIS. it aims at managing water distribution networks. The data model is part of the project and covers most use cases for this kind of assets. The qWAT project is strongly linked to QGIS, and tries to contribute to the core of QGIS so as to mutualize developments and features among other QGIS-based applications. Similarly, the QGEP project is dedicated to wastewater networks. We also present a use case for an implementation of a wastewater information system in France, based on QGIS and PostGIS. Furthermore, we show how PostGIS-based projects allow to do network and graph analysis, so as to extract meaningful information for decision-taking and planning. QGIS-Epanet and QGIS-SWMM are two QGIS Processing extensions integrating simulation features on water distribution and wastewater networks. They let the user run simulations to analyze the network, dimensioning, and identify specific issues. These set of tools show that OpenSource GIS now tend to fulfill use cases for specific fields of application, and water management is among them.

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name: OpenSource tools for water network management


uk: Комп'ютерні науки

description: We present iTowns, a web framework developed in Javascript / WebGL for 3D geospatial data visualization, with capabilities for precise measurement directly in the browser. The first use case of iTowns is Street-view data type visualization : immersive images, but also terrestrial LIDAR Point Cloud data. But iTowns now supports much more data types :  Oriented images Panoramic images Point Clouds 3D textured models WFS vector data iTowns OpenSource is the descendant of the initial iTowns software developed at MATIS research laboratory of the French National Mapping Agency. iTowns OpenSource version 1.0 has been released in February 2016. The framework allows to : - Visualize projected images on a mesh ( cube, 3D model) - Visualize panoramic images - Display depth panoramic images - Display extruded building ( from WFS, other sources ) - Navigate in 3D (click & go) - Display Point Clouds - Visualize textured 3D models ( B3D, 3DS) - Use a simple API We detail iTowns features with videos. The data showcased was acquired by IGN's Stereopolis car. Aside from presenting the software, its present state and the future 2.0 version, we also explain the project history, which is an interesting case of technology transfer from research to industry.

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name: iTowns, a new framework for 3D web visualization


uk: Комп'ютерні науки

description: PublicaMundi is a successfully completed EU FP7-ICT project aiming to make open geospatial data easier to discover, reuse, and share by fully supporting their complete publishing lifecycle in open data catalogues. PublicaMundi extends and integrates leading open source software for open data publishing and geospatial data management. In particular, PublicaMundi extends CKAN, the leading open data catalogue, into treating geospatial data as “first-class citizens” and providing automatic OGC- and INSPIRE-compliant access to geospatial data, through integration with pycsw, rasdaman, ZOO-Project, GeoServer, MapServer, PostGIS and GDAL. PublicaMundi was recently deployed to geodata.gov.gr to serve as the main open geospatial data catalogue of the Greek government. The production system provides multilingual data access to data publishers, open data users, and developers through the main catalogue, an integrated mapping application, and various APIs (CKAN, data, mapping and OGC APIs). This presentation will provide an overview of the production system, the cloud infrastructure used and future developments.

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name: Implementing Open Geospatial Data Portals with CKAN, pycsw and PublicaMundi: the geodata.gov.gr case


keywords: The Norwegian Institute of Bioeconomy Research

uk: Комп'ютерні науки

description: Postgis Topology is a must if correct and up to date maps are important for you. 1) Normalize data, for instance shared edges should only be represented once. Why : Avoid the possibility for gaps , overlaps, spikes and other error in the result. 2) Must be simple to expand or reduce a polygon surface even if the border line contains thousands of points. Why : Moving many points on a screen is difficult and time consuming and its's often is easier just to draw a new line. 3) Only the actual changes should be written to the database. Why : Or else you may get problems because of projections, different number off decimals in client, protocol and server. 4) Removing lines should cause old surfaces reappear with original borders for layers that has 100% coverage. Why : We want end users update our maps because they know best what is like there, but then we must accept errors and then it should easy to correct these error in a efficient way. 5) Generalize and simplify on the fly. Why : To reduce the amount bytes on wire it's important to give the user a good end user experience. We have now made a simple web client for updating topology layers of type surface, line and points where we are using a simple generic protocol based on JSON.

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name: Postgis Topology will replace simple feature.


name: a Deutsche Bahn Company Valikov, Alexey (DB Systel GmbH)

uk: Комп'ютерні науки

description: Deutsche Bahn (German Railways), one of the world-leading passenger and logistics company is long-known to be very closed and conservative. Therefore, for many it was a complete surprize when Deutsche Bahn has announced the DB Open Data Portal in Novemeber 2015 and started publishing datasets under very permissive Creative Commons licenses. These datasets include geodata like stops, stations, complete railway track network and many others, growing almost weekly. DB Open Data is now extended by DB Open APIs like timetable of the long-distance trains. In this talk, we tell the story behind DB Open Data. About our challenges and failures, our successes and lessons learned on the way to become more open, to enable and to be enabled by the community. We show projects which were already implemented using our Open Data and point out to boundaries we still have to break.

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name: Open Data Revolution of the Deutsche Bahn (German Railways)


uk: Комп'ютерні науки

description: The OpenSky Network is a community-based receiver network which continuously collects air traffic surveillance data. Unlike other systems, OpenSky keeps the collected data forever and makes it available to researchers from different fields. With almost 50 billion ADS-B messages collected so far, the OpenSky Network exhibits the largest air traffic surveillance dataset of its kind in the world. In this talk, we explain how the OpenSky Network functions, what you can do with our data and how you can participate. We will show how you can easily build an ADS-B base station under 100 Euro. Composed from the cheap off-the-shelf components, this station will be still powerful enough to "see" planes in the radius of up to 150km.

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name: OpenSky Network - Crowdsourced and Open Air Traffic Surveillance Network


uk: Комп'ютерні науки

description: Web maps needn't be dull and this talk will show you how you can take your cartographic skills from the desktop GIS to the web using SLD and GeoServer. The initial part of the talk will introduce desktop tools such as QGIS and UDig and how they can help novices get started with styling maps. Moving beyond the basics it will continue with a look at the use of functions to modify the features being drawn. It will include an in depth look at how to control the placement of labels to enhance the readability of the map especially when using tile caching to speed up map service. The talk will finish with a discussion of using GeoServer's composite and blending modes to provide pretty effects that can enhance your web mapping.

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name: GeoServer Styling Hints and Tips for Prettier Maps


uk: Комп'ютерні науки

description: KNReise is a collaboration-project among Norwegian governmental bodies working with cultural, historical and natural data. As the project neared it's conclusion, and had gathered, created and geolocated a huge amount of data and published it using REST APIs the next step was to present the data in a uniform manner. We where tasked with making a client-side only, fully configurable, OpenSource web solution for displaying data from a number of different APIs. Using OpenSource components we where able to pull this off, and this talk will present both the product as well as the process.

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name: KNReise: OpenSource access to open, geospatial cultural and natural datasets

name: Open Source Geospatial Foundation (OSGeo)


uk: Комп'ютерні науки

description: Open source tools have been successful in managing geospatial data in central data stores. However, performance issues can arise from many users accessing the same table in a geospatial database at once, especially in a multi-user editing environment. The geospatial landscape also changes constantly, as a result of human activity and natural forces, this gives a need to track these changes within the geospatial database and perform change detection activities to understand changes across time, hence a need to version history. These use cases springs up the requirements to employ a data distribution across multiple geospatial databases using versioning and replication technology to integrate several desktop and mobile user applications into an adaptive geospatial communications environment connecting operations across the enterprise and throughout the organisations to improve data availability to multiple users, tracking change history within multiple table versions while increasing system performance. Several commercial geospatial applications have successfully implemented full versioning replication capabilities by leveraging middleware with the core database versioning capabilities – for example ArcSDE technology from Esri . The realization of a full solution has been far-fetched on open source geospatial applications. This presentation discusses the development of QGIS plugin and implementation of FOSS4G solutions for versioning and replication capabilities with to support multi-user access while optimizing performance using QGIS, PostgreSQL, PostGIS and SpatialLite DB technologies.

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name: An Open Source Approach to Multi-user Distributed Geospatial Data Management


An R-tree index for RocksDB

uk: Комп'ютерні науки

description: This talk is about implementing a R-tree on top of RocksDB, an LSM-tree (log-structured merge-tree) based key-value store. It will give an introduction about how RocksDB works and why LSM-trees are such a perfect fit to build an R-tree index on top of them. Finally there will be a deep dive into the actual R-tree implementation. RocksDB is a popular key-value store by Facebook (based on Google's LevelDB). It supports key and range lookups and basic spatial indexing based on GeoHash, but not an R-tree implementation which makes multi-dimensional queries possible. Those queries can combine things like location and time, but also any other property that can be represented as a numeric value, such as categories. This makes it possible to query e.g. for all flats with a certain size in a specific area that are not older than a few years and have a balcony.

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State of GeoGig

keywords:
Boundless Spatial Inc.
Boundless

uk: Комп'ютерні науки

description: GeoGig is having an amazing breakout year! GeoGig is a library and command line tool for distributed spatial data management. This talk will introduce you to the GeoGig team, the committers and the organizations behind the project. We will take an extensive look at the GeoGig 1.0 release and some of the features we are excited about (improved revision management, faster import, spatial index, postgresql backend, and sqlite for local storage). GeoGig technology is an important addition to the open source community. We will look at the work done with the QGIS project to bring distributed data management to desktop users. What is especially exciting (for those with a land management background) is the integration with GeoNode for enterprise data management. Attend this talk to lean how GeoGig can help your organization and what the project has planned for your future.

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name: Masdar Institute of Science and Technology. Calisto, Luis (ReCREMA)

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description: The Research Center for Renewable Energy Mapping and Assessment (ReCREMA) in Masdar Institute (UAE) was established in 2012 with the mandate to develop local capacity and accurate databases of renewable energy potentials in the United Arab Emirates and the Arabian Peninsula. To help the achievement of these goals, ReCREMA created a powerful Spatial Data Infrastructure (SDI) based in open source and open standards. On the top of this SDI several GIS-based tools were developed and published over the last four years. The UAE Solar atlas, the UAE Solar Technology Simulator, the UAE wind atlas and the Gulf Earth portal are some of the main webgis products developed as part of this initiative. Also, a satellite-based real time tool that shows real time solar maps updated every 15 minutes was developed in both mobile and desktop formats. Mobile apps have the advantages of using the device location for a better user experience. Recent developments include a real time dust monitoring and forecasting tools covering the whole Arabian Peninsula. All these products were made publicly available in app stores and in ReCREMA website. The decision to use open source GIS platforms in ReCREMA will allow to outreach a large pool of potential end-users and to provide accurate, reliable and updated tools to decision makers, industrial developers, investors and the general public.

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name: GIS FOSS based products for renewable energy mapping and assessment in the Arabian Peninsula


How WebGL vector maps work

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description: Mapbox GL JS is an open source library for modern interactive maps, powered by WebGL. Developed for more than 3 years, it combines a variety of sophisticated algorithms, smart ideas and novel approaches to deliver 60fps rendering of vector data with thousands of shapes and millions of points. In this talk, you will find out how it works under the hood and why it's so challenging to build dynamic WebGL applications. The talk will cover scalable font rendering, line and polygon tessellation, in-browser spatial indexing, collision detection, label placement, point clustering, shape clipping, line simplification, sprite packing, efficient binary data encoding and transfer, parallel processing using Web Workers and more!

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Web maps & WebGL

uk: Комп'ютерні науки

description: WebGL is a technology enabling web browsers to efficiently display massive amounts of 3D data in real time, which has achieved widespread support in most web browsers. But despite being fast and efficient, there not a lot of web mapping libraries or applications using its potential. In this talk we'll visit the most well-known web mapping libraries and platforms, we'll see what kind of state-of-the-web technologies they support and what are the challenges of writing WebGL code Other web tecnologies such as Service Workers and binary typed arrays mean that commonly used standards such as OGC WMS, OGC WFS and TMS might need to change if we want these formats to perform as good as the bleeding-edge technologies.

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description: Global Forest Watch (GFW) is an interactive online forest monitoring platform designed to empower people everywhere with the information they need to better manage and conserve forest landscapes. Thanks to open data, GFW is able to do the following: Monitor when and where forests are changing. NASA’s freely available Landsat and MODIS data has allowed hundreds of scientists and researchers to develop innovative solutions to monitor landscape changes. Algorithms are now used to process and analyze this remotely-sensed data to show when and where forests are changing with surprising precision and speed. Understand why forests are changing. Open data showing boundaries of land allocated for specific purposes, such as commodity production and conservation, as well as land management, allows us to understand why forests are changing. Are trees being cleared for palm oil? Are certain swaths of forests still standing because they are managed by indigenous groups? Gauge the significance of deforestation. Additional open data provided by research institutions, governments, and others is used to understand the implications of deforestation on biodiversity, climate change, and provision of ecosystem services. For example, was a recently clear-cut area of forest home to endangered species? Was it a carbon rich primary forest? Spark further innovation. GFW’s open-source code and APIs allow others to leverage GFW’s analysis tools and open data to create additional forest monitoring and management tools.

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name: Global Forest Watch: Using Open Data to Save the World’s Forests


Challenges of indoor mapping formats

uk: Комп'ютерні науки

description: New data formats for mapping the indoor spaces of buildings have been appearing lately - the shift from Autocad files to BIM systems and the adoption of OGC IndoorGML should mean a better standardization of the data. The reality from the trenches is somehow more grim - indoor mapping data is still in silos, hasn't seen any big breakthroughs in creating and editing, and most of the challenges remain. Sometimes a format or specification covers a very specific and non-general use case, and sometimes the generality of a format incurs in a great overhead for every simple use case. Sometimes new concepts are really old concepts from a different industry but with a new name. This talk will review what's good, what's bad and what's ugly with indoor mapping.

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