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Chaos Computer Club - archive feed

Chaos Computer Club - archive feed

14,359 episodes — Page 140 of 288

State of GDAL (foss4g2019)

After a brief introduction to the project, this talk will focus on the two feature-oriented releases which have occurred during the last year, GDAL 2.4 and GDAL 3.0. We will explore new drivers (Google Earth Engine Data API, NextGIS Web, GeoJSON sequence, TileDB, ...), improved drivers (BAG, GeoTIFF with Lerc and WebP codecs, Geospatial PDF generation…), improved algorithms (polygonal contouring), new virtual file systems, the integration of PROJ 6 and its benefits (genuine database with definitions of coordinate reference systems and coordinate operations, support for WKT 2, late-binding transformations) The advance of community efforts that have lead to a revamped Python testing suite and documentation/web site will also be presented. None about this event: https://talks.2019.foss4g.org/bucharest/talk/JTKMZG/

Aug 27, 201926 min

Gisquick: Let’s share GIS much quicker (foss4g2019)

[Gisquick](http://gisquick.org) is an open source geospatial data publishing platform. We have developed it for rapid sharing of our projects created with QGIS. We put together minimal set of functions for useful generic web mapping application - a web client for QGIS projects. With Gisquick, you can share GIS outputs with others easily and much quicker. It consists of QGIS plugin, Django based server application, QGIS-server, and web/mobile clients. The process of data publishing with Gisquick is quite easy. You can create and set up your projects with QGIS (layers, metadata, print layouts), prepare it for publishing using Gisquick plugin and upload it to the server. Gisquick is developed as an open source project under GNU GPL license, and for client-server communication it uses only open protocols (WMS, WMTS and WFS). It can be used without any significant modifications, or used as a starting point for further development. The talk will present current status of Gisquick, it's special features, which might not be available in similar platforms and roadmap for next development. None about this event: https://talks.2019.foss4g.org/bucharest/talk/XWKNZC/

Aug 27, 201925 min

Interactive GeoPlatform for Public Administrations (foss4g2019)

The new Spatial Data Infrastructure of the Veneto Region (IDT-RV 2.0) has been completely redesigned to move from the older structure, based on commercial products, to state of the art FOSS4G software, providing methods to simplify data publication. Operational innovations introduced by the new infrastructure include: • Provision of tools for the interactive creation of WebGIS sites, without any code development, to be quickly shared on demand; • Complete management of the data lifecycle and related metadata, from acquisition to production, atomically monitored through a step-by-step workflow; • Creation of metadata through an interactive web editor, according to the defined normative rules, capable of supporting the user from the input of the values through template, to the final validation. Particular focus will be put on critical issues and challenges that where solved. None about this event: https://talks.2019.foss4g.org/bucharest/talk/MCKFWD/

Aug 27, 201924 min

State of MapServer (foss4g2019)

MapServer 7.4 was released earlier this year. The main focus of this release is MapScript - MapServer’s scripting language, and we'll review the various language options available along with other changes and lesser known features from recent releases. A summary of development from the recent OSGeo codesprint in Minnesota, and the road map towards MapServer 8 will be presented. A description of MapServer [1] and a brief history of its development will be outlined, along with a summary of the project health including numbers of active contributors and mailing list users, and project steering committee changes. An overview of projects related to MapServer will be given including MapCache [2], MapServer for Windows [3], GC2 [4], mappyfile [5], and the Zoo project [6]. We'll look at how to get involved with MapServer and help with the continued success of the project at all technical levels. Finally members of the MapServer PSC (Project Steering Committee) will be present at the talk to answer questions. [1] https://mapserver.org/ [2] https://mapserver.org/mapcache/ [3] https://ms4w.com/ [4] https://www.osgeo.org/projects/gc2-vidi/ [5] https://github.com/geographika/mappyfile [6] https://www.osgeo.org/projects/zoo-project/ None about this event: https://talks.2019.foss4g.org/bucharest/talk/WKX8NS/

Aug 27, 201920 min

OSGeo UN Committee Educational Challenges: A use case of sharing software and experience from all over the world (foss4g2019)

The OSGeo United Nations (UN) Committee promotes the development and use of open source software that meets UN needs and supports the aims of the UN. Following a meeting between the OSGeo Board of Directors and the UN GIS team at the FOSS4G conference in Seoul, Korea, in September 2015, the Committee has mainly worked on the UN Open GIS Initiative, a project "... to identify and develop an Open Source GIS bundle that meets the requirements of UN operations, taking full advantage of the expertise of mission partners including partner nations, technology contributing countries, international organisations, academia, NGOs, private sector". In 2018, the OSGeo UN Committee called for proposals for developing open geospatial educational materials as a part of its activities. There were three challenges: the first two (one of them sponsored by Boundless) are related to the UN Open GIS Initiative. The first challenge, related to UN Open GIS - Spiral 1, aims at the development of education material that teaches users how to apply the GeoSHAPE platform. GeoSHAPE is a free and open source geospatial collaborative platform created from various open source projects. The developed material provides a guide on how to create, edit and share critical data on an integrated dynamic map in near real time, view map updates by users from anywhere in the world and use GeoSHAPE exchange in connected and disconnected environments. The course is structured with content to suit novice, intermediate and advanced users. The second challenge supports UN Open GIS - Spiral 3, which provides geo-analytical solutions for the UN. The feasibility of the analytical functions developed as part of Spiral 3 were tested against an Ebola Epidemic use case. Requirements for developing suitable applications and methodologies based on actual UN operational cases were defined in 2017. Members of the UN Open GIS - Spiral 3 developed a geo-analytical library, called "Processing Toolbox", which is a plug-in for uDig, an open source desktop GIS. The training material developed in the frame of the OSGeo UN Challenge provides an introduction to the use of the algorithms for environmental analysis in the uDig Processing Toolbox, specifically those related to ecology and ecosystems identification. The training material for Spiral 3 is designed as a step-by-step tutorial, using algorithms in the uDig Processing Toolbox. While working through the tutorial, the user is familiarized with the tools covering all the available macro sections. After completing the tutorial, a user will be able to find the needed algorithms to solve a specific use case. The presentation deals with the description of the UN Open GIS Challenge and the open training materials developed under this initiative. The material is available under an open license and can therefore be reused by anybody. None about this event: https://talks.2019.foss4g.org/bucharest/talk/SGGAGJ/

Aug 27, 201918 min

Linking geospatial free and open-source technologies with big data in biodiversity research (foss4g2019)

There were no slides recorded due to a system failure. We are sorry for that! Understanding and predicting the distribution of life on Earth represent major research tasks in the face of global environmental change. These tasks often require the integration and analysis of big and diverse datasets that reflect properties of wild organisms and their abiotic environment across space. I will demonstrate the use of geospatial free and open-source technologies for exploring, analysing and predicting biodiversity patterns across the globe, focusing primarily on the geography and drivers of genetic diversity in terrestrial mammals. I will also stress the importance of data sharing in nature conservation through interactive visualisation frameworks. None about this event: https://talks.2019.foss4g.org/bucharest/talk/7BFHNF/

Aug 27, 201922 min

From visualization to analysis. Stop using heatmaps to discover spatial patterns (foss4g2019)

It is a common thing when pattern analysis cases are just about visualizing the features. The talk would start with a gentle introduction into pattern analysis algorithms. I would focus on the benefits of using analysis in comparison to visualizing methods, present cases and show pitfalls in usage and implementing these algorithms. None about this event: https://talks.2019.foss4g.org/bucharest/talk/7Y8KUQ/

Aug 27, 201927 min

GC2/Vidi: What’s new in the spatial data infrastructure project (foss4g2019)

The GC2/Vidi platform helps you build a spatial data infrastructure quickly and easily. Powered using open source components for a scalable solution focused on freedom rather than fees. GC2/Vidi comprises two software projects: - GC2 – makes it easy to deploy PostGIS, MapServer, QGIS Server, MapCache, Elasticsearch, GDAL/OGR. And offers an easy-to-use browser application to configure the software stack. - Vidi – a modern take on browser GIS. It is the front-end client for GC2. The GC2/Vidi project is released under GPL and accepted as an OSGeo Community Project last year. The first part of the talk gives a brief overview of the platform and summarizes the capabilities it has to offer. In the second part the browser GIS named Vidi will be reviewed with emphasis on the new offline capabilities. This comprises the possibilities to use the web app and access/edit data without network, which makes Vidi well suited for field work in areas without good 3G/4G coverage. The talk will include a short demonstration and give a walkthrough of the modern browser technologies used including Service Workers, IndexedDB and StorageManager. Furthermore, the ongoing developments and future innovations will be reviewed. None about this event: https://talks.2019.foss4g.org/bucharest/talk/9TDGAW/

Aug 27, 201923 min

MapML: The (new) "map" HTML element, now in MapServer, GDAL and OGR (foss4g2019)

The W3C Maps for HTML Community Group is working to define a (new) "map" HTML element that would be used to define map contents in a web page and would be directly supported and rendered by web browsers in a standardized way. All this is done by building on existing standards such as WMS, WFS and Tile Services. In addition to standardizing the encoding and access to map elements in web browsers, this encoding also aims to make the map contents more easily discoverable and indexable by search bots on the Web. This talk will start with an overview of the MapML draft specification, and then discuss the recent implementation of MapML in MapServer, GDAL and OGR. The goal of this initial implementation is to get MapML used in real life scenarios and to gather feedback from the community on the draft specification. Please come and join the discussion! None about this event: https://talks.2019.foss4g.org/bucharest/talk/9D7GAU/

Aug 27, 201928 min

Case Study of Non-Revenue Water Management of Narok water in Kenya (foss4g2019)

Narok Water and Sewerage Services Company (hereinafter, called NARWASSCO) supplies water at Narok town and Ololulung'a town in Kenya. As of February 2019,we have 4,689 water connections and 74,314m3 of water consumption in Narok, also have 580 water connections and 5,736m3 of water consumption in Ololulung'a. Total length of pipeline is 144.2km in Narok and 71.7km in Ololulung'a. <br> NARWASSCO, currently uses FOSS4G to do data collection and data utilization for water supply services. For example, mapping of all water facilities in the company, and the collected data have been used to improve operations (application of new connection, leakage management, meter reading, customer care, etc.). We can say Narok water is the first water company which started to use FOSS4G in Kenya. <br> Our interesting is how water company use GIS inventory data to reduce Non-Revenue Water (NRW). NRW means physical losses(leakage) and commercial losses(meter reading error, illegal connection, etc.). We think GIS technology can contribute a lot of things for water supply services, so we would like to share our experience and get some idea from participants of FOSS4G conference. None about this event: https://talks.2019.foss4g.org/bucharest/talk/BMWTWB/

Aug 27, 201923 min

OpenLayers 6 - There And Back Again (foss4g2019)

The last few months have been quite a ride for our good ol’ web mapping companion. What should have been a peaceful rest after a lengthy refactoring in version 5 did in fact end up being an involved rewrite of its rendering code: better **performance**, nicer **vector tiles**, smoother **WebGL**, more options and even some Mapbox goodness in there. In this talk we will take a quick tour of all the new stuff in OpenLayers and talk about the *why*s and *how*s, as well as what lies ahead of us. Love maps? We do too, come along! None about this event: https://talks.2019.foss4g.org/bucharest/talk/SLW83K/

Aug 27, 201925 min

SMODERP2D Soil Erosion Model Entering Open Source Era with GPU-based Parallelization (foss4g2019)

<p>SMODERP2D is a runoff-soil erosion physically-based distributed episodic model used for calculation and prediction processes at agricultural areas and small watersheds. The core of the model is a raster based cell-by-cell mass balance calculation which includes the key hydrological processes, such as effective precipitation, surface runoff and stream network routing. Effective precipitation, the forcing of the runoff and erosion processes, is reduced by a surface retention and an infiltration. Surface runoff consists of two components: slower sheet and concentrated rapid rill flow. Stream network routing is performed line-by-line in user predefined polyline layer. SMODERP is a long-term running project driven by the Department of Landscape Water Conservation at the Czech Technical University in Prague. At the beginning SMODERP has been developed as a surface runoff simulated by profile model (1D). Later the model has been redesigned using spatially distributed method. This version is named SMODERP2D. Ongoing development (https://github.com/storm-fsv-cvut/smoderp2d) is focused on obtaining parameters of the hydrological models, incorporating new infiltration and flow routing routines, and conceptualization of a rill flow and rill development. The model belongs to a family of so called GIS-based hydrological models utilizing capabilities of GIS software for geodata processing. Importantly, the SMODERP2D project is currently entering the open source world. Originally the model could be run only in proprietary Esri ArcGIS platform. A new version of the model presented by this contribution adds support for two key open source GIS platforms, GRASS GIS and QGIS. A newly developed GRASS module and QGIS plugin significantly increases accessibility of the SMODERP2D model for research purposes and also for engineering practice. Middle scale distributed hydrological models often encounter with a high computation costs and long model runtime. Long runtime is caused by high resolution input data which is easily available nowadays. The project also includes an experimental version of the SMODERP2D model enabling the parallelization of computations. This parallelization is done using TensorFlow, and its goal is to decrease the time needed for its run. It is supported by both CPU and GPU. Parallelization of computations is an important step towards providing SMODERP2D web processing services in order to allow quick and easy integration to highly specialized platforms such as Atlas Ltd. None</p> about this event: https://talks.2019.foss4g.org/bucharest/talk/BCVBMK/

Aug 27, 201928 min

Creating Stunning Maps in GeoServer, with SLD, CSS, YSLD and MBStyles (foss4g2019)

Various software can style maps and generate a proper SLD document for OGC compliant WMS like GeoServer to use. Several topics will be covered, providing examples in the various GeoServer styling languages, including: * Mastering common symbolization, filtering, 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 labelling subsystem conflict resolution engine to avoid overlaps in stand alone point symbology * 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 GeoServer styling documents and most of GeoServer extensions to generate appealing, informative, readable maps that can be quickly rendered on screen. None about this event: https://talks.2019.foss4g.org/bucharest/talk/ZDBPYE/

Aug 27, 201924 min

PinSout: Accelerating 3D Indoor Space Construction from Point Clouds with Deep Learning (foss4g2019)

With the LiDAR developments, point cloud is becoming a valuable resource to build 3D models of Digital Twins, the virtual representation of a real world physical feature (object or system). Even though 3D point cloud can be more suitable to depict the real world, it requires HPC. 3D model representations help applications to quickly handle and navigate data comparing to point cloud. However, the 3D model construction of every physical feature usually necessitates expensive time and labor resources to organize and extract the features outlines by interactive manual operations. Recently, deep learning is used to derive semantic classes necessary for 3D modeling by automated classification and segmentation. PinSout (Point-in Space-out) is a new framework to automatically generate CityGML LOD4 from raw 3D point cloud data by using PointNet. This framework extracts each object required for 3D indoor space modeling from point cloud after learning the deep model with the annotated dataset of Standford Building Parser. After the semantic segmentation, it computes the contour of an object using PCL to augment each spatial indoor model. Finally, the extracted objects are stored into 3D CityDB and provided as CityGML LOD4 data. None about this event: https://talks.2019.foss4g.org/bucharest/talk/VT9Q73/

Aug 27, 201921 min

Interactive map of geospatial information in the City of Buenos Aires (foss4g2019)

The map is based on the concept of geographical management that highlights the importance of the location of events or objects, which allows, for example, to understand how they are spatially related, to analyze proximity and their distribution within an area. In addition to the public map, there is an internal version that contains additional confidential information that provides all government areas with access to tools and integrated geo-referential information that promotes decisions based on data that allow, for example, to plan future actions and services, such as interventions . in the public space, inspections and verification of roadmaps and information collection. None about this event: https://talks.2019.foss4g.org/bucharest/talk/UNTZGU/

Aug 27, 201913 min

Publication of Inspire Datasets as Linked Data (foss4g2019)

In order to increase interoperability and facilitate the reusing of geospatial data, it is proposed a methodology of publishing INSPIRE-compliant datasets as Linked Data, using the RDF format and various ontologies such as the ones derived from the ARE3NA for the Annex I themes, or GeoSPARQL from the OGC. This methodology would cover the whole process of generating the RDF triples from GML sources, setting up a triple-store to persist the information, and issuing SPARQL queries to the exposed endpoint. A working example would be presented using the Spanish CNIG endpoint, where several datasets from the Annex I are hosted. Then a series of queries joining external information from other endpoint, like DBPedia or GeoNames, would be used as a mean to demonstrate the interoperable capabilities and the potential applications to enrich spatial data, extract meaningful insights from it and use it to support information systems. None about this event: https://talks.2019.foss4g.org/bucharest/talk/8QJHCM/

Aug 27, 201923 min

Data is USELESS! (foss4g2019)

What is the value of data? This presentation will be about value of data and why data is useless unless it is collected and used in a right way or with the knowledge on how it is collected and therefore what its limitations are. We will look at official data and Open Street Map and show some examples that visualize the mismatch between dataset. We will also show how data can be used, when it is updated correct and how we can go beyond just the nice Open Street Map as just a basemap. Then we will investigate what we can do about it and how Open Source tools play a huge role in this. It will open a discussion and hopefully a brainstorm on the way forward. None about this event: https://talks.2019.foss4g.org/bucharest/talk/VJHDPP/

Aug 27, 201921 min

SAGA GIS 7.3 - new LTR (foss4g2019)

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 talk will focus on the new features that have been added since the previous LTR version (2.3.2) which is the version used in QGis processing. None about this event: https://talks.2019.foss4g.org/bucharest/talk/7RPMVM/

Aug 27, 201921 min

Custom workflows in QGIS thanks to Python - a non technical introduction (foss4g2019)

This talk introduces the integration and possibilities of Python within and around QGIS in its latest version. Being an introductory talk it is not aimed at developers but much more at [future] QGIS users that would like to know what possibility exists for customizing your workflows thanks to PyQGIS. The presentation will brush the following topics: * Integration of Python in the latest version of QGIS * what can be done with Python in QGIS - chances and limits * Python console and scripts in QGIS * Plugins with Python * Macros with Python * Python in forms * Custom python expressions * Geoprocessing with Python within QGIS None about this event: https://talks.2019.foss4g.org/bucharest/talk/WTRBY8/

Aug 27, 201921 min

State of GeoExt (foss4g2019)

The GeoExt project [1] is a JavaScript library combining the OpenLayers mapping library [2] and the JavaScript framework ExtJS [3]. The talk will give a brief history of the project, and a summary of its dependencies and versions. Several new features recently developed for the latest GeoExt release will be presented. The talk will include an overview of two more Open Source JavaScript libraries which bring additional power and functionality to GeoExt: BasiGX [4] and GeoStyler [5]. BasiGX is a higher-level JavaScript library that builds on top of GeoExt and focusses on advanced GIS user interfaces and mapping tools for the web. GeoStyler is a JavaScript library for cartographic styling of geodata, and can be combined with a GeoExt solution to apply several formats to layers, e.g. SLD (Styled Layer Descriptor) files. The talk will include examples of real-world projects using GeoExt, along with recommendations on what types of projects are most suitable to develop them using GeoExt and its associated technologies. Finally a roadmap for the future of GeoExt will be outlined along with how developers and users can get involved. None about this event: https://talks.2019.foss4g.org/bucharest/talk/FNANSU/

Aug 27, 201922 min

Calculating CO2 emissions for Urban Land Use Planning with FOSS4G tools (foss4g2019)

Can you calculate the CO2 emissions for your city now or for the future? Ubigu Ltd, Tietotakomo, Gispo Ltd, Finnish Environment Institute and City of Tampere in Finland have crafted an open source climate tool during spring 2019. It was created using QGIS, PostGIS, GeoServer and Oskari map service for detecting what areas have more CO2 emissions than others taking into account also carbon sinks. The climate tool is used to do better land use planning to achieve CO2 neutral city. The base of the calculation comes from 250*250 m urban zone grid by Finnish Environment Institute where we have information about workplaces, demography and buildings. The tool utilizes also different climate parameters and combines the information to the grids. The user interface was created with QGIS and where analysis was driven with algorithms stored to PostGIS database. The tool also provides CO2 visualisation of the analysis results via GeoServer and in the end Oskari map service. In this presentation we will go through the background and demonstrate the use of the tool. None about this event: https://talks.2019.foss4g.org/bucharest/talk/B9F3TW/

Aug 27, 201922 min

Show me the good grass: an open GIS powered call center for livestock herders in Mali. (foss4g2019)

A call center powered by an open GIS platform helps livestock herders in Northern Mali find pasture and water through the "Sustainable Technology Adaptation for Malian Pastoralists" (STAMP) programme. Herders can now access life-saving information by phoning call center agents, who in turn provide the outlook from Earth Observation and real-time field survey data to herders. This talk will show how the system was built, what we learned works (and doesn’t!), demonstrate the dashboard and show how to download and play with the datasets. None about this event: https://talks.2019.foss4g.org/bucharest/talk/YFSS9V/

Aug 27, 201921 min

A digital 3D maquette on country scale with pointclouds, postgis, 3D tiles and cesium (foss4g2019)

More open pointcloud data is released every year and with it there is an increasing request for automatically generated large scale digital maquettes that can be used in city-planning, environmental modelling and 3D data-analysis. We will show how we use a pipeline of OS software that goes from pointclouds and cadastral data to a full scale 3D maquette of your country. Processing happens mostly in postgres and takes typically a couple of minutes per square km. Included in the talk is: * introduction of some python-scripts for pointcloud-processing * adoption of procedural language in postgres * advanced use of postgis (voronoi, sfcgal etc) * generating 3D tiles * styling a maquette in cesium The presentation will be fast paced and includes a range of technical details but should be understandable for the average person. It includes code examples and live demo's. In the end you will have an understanding of available software (both new and existing), do's and don'ts in generating 3D data with OSS and contemplations on how to use a digital 3D maquette. None about this event: https://talks.2019.foss4g.org/bucharest/talk/SJH3VL/

Aug 27, 201925 min

State of GeoServer 2019 (foss4g2019)

State of GeoServer provides an update on our community and reviews the new and noteworthy features for 2019. GeoServer is a web service for publishing your geospatial data. using industry standards for vector, raster and mapping. We have an active community and a lot to cover for 2.14 and 2.15 release, as well what is cooking in September’s 2.16 release. Each release provides exciting new features, this talk covers diverse improvements across GeoServer: * Support for Java 11 deployments * And update on the ongoing work on WFS 3.0 and next generation of WMTS * Extensions to WPS for better controlling status and progress of processes * JAI-EXT enabled by default, and what that means for your raster map publishing * Map algebra support * Data store functionality improvements, including news for MongoDB and PostGIS * Styling subsystem improvements * And much more… Attend this talk for a cheerful update on what is happening with this popular OSGeo project. Whether you are an expert user, a developer, or simply curious what GeoServer can do for you. None about this event: https://talks.2019.foss4g.org/bucharest/talk/DHD8AG/

Aug 27, 201926 min

Introduction to MapStore, mashups made simple (foss4g2019)

MapStore is the Open Source product for creating, saving and sharing in a simple and intuitive way maps and mashups created selecting contents from public services like Google Maps and OpenStreetMap or other servers implementing OGC and ISO protocols. Thanks to MapStore the user can mix her own data with data available on the web to create comprehensive maps and share them with anyone (also via social networks). MapStore2 is cross-browser, and mobile ready. MapStore allows the user to: * Manage maps (share, delete, search, create) and users through a front-end Manager. * Create and navigate maps using a powerful and intuitive front end as map Viewer. * Manage the embed-link, marker's injection, routes injection, time series Google Earth like, spatial queries and more. * Interact with one or more Catalog Service for the Web (CSW). You can also use MapStore as a framework to develop your custom WebGis application composing MapStore ReactJS components and components from other libraries (like React Bootstrap), choosing the best mapping library for your purposes. The presentation will give the audience an extensive overview of the MapStore functionalities for the creation of mapping portals. None about this event: https://talks.2019.foss4g.org/bucharest/talk/RZFC33/

Aug 27, 201924 min

Natural Language Processing meets FOSS4G – Introduction of Document Mapping (foss4g2019)

Natural Language Processing, in short, NLP is one of the most high-lightened technologies these days. What I would like to bring on FOSS4G 2019 is an experimental approach which integrates NLP with mapping system. Just for convenience, I call this approach “document-mapping”. In this approach, documents are plotted according to their similarities: in other words, similar documents are plotted within close proximity, and vice versa. This approach can be done by several NLP based algorithms. As a result of the processing, XY coordinates are attached with each document. This approach will show us lots of possibilities, converting qualitative data-sets into quantitative ones. For example, we can evaluate the impact on a specific article or an opinion not only by numeric data but also visualized map with the similarity-distance. I attached an example using twitter data-sets. Another possibility I would like to introduce is its application for regional masterplans. I am currently trying to analyze a transition of cities and achievements of the city plans by using this idea. This attempt is still on a progress, and hopefully I would like to present this result in August. None about this event: https://talks.2019.foss4g.org/bucharest/talk/ZYLV8A/

Aug 27, 201925 min

geOrchestra - INSPIDE SDI (foss4g2019)

geOrchestra gathers an open source community to build an INSPIRE compliant Spatial Data Infrastructure. The result is a customizable, interoperable and free INSPIRE SDI, based on the best geospatial open source components. Referenced on Github, geOrchestra offers a solution to publish and share spatial data on intranet and internet. geOrchestra project is built around several independent and interoperable applications, such as Geoserver, GeoNetwork. These various modules are loosely coupled, meaning that the operation of each module does not affect the other. Communication between modules uses OGC standards. geOrchestra was designed to meet the requirements of the INSPIRE Directive, which aims to establish a spatial data infrastructure at European scale, with the aim to meet the challenges of sustainable development. This talk will describe the geOrchestra community project and give a project status update. None about this event: https://talks.2019.foss4g.org/bucharest/talk/BX3NXY/

Aug 27, 201923 min

Revamp of Coordinate Reference System management in the OSGeo C/C++ stack with PROJ and GDAL (foss4g2019)

In this talk, we will give an overview of the recent works that have occurred in the PROJ, libgeotiff and GDAL libraries regarding Coordinate Reference Systems (CRS). Those improvements have mostly taken place in the venerable PROJ library that has evolved over the last 30 years from handling “only” more than hundred of cartographic projections to becoming a full-fledged library for CRS management and transformations. PROJ 6 now supports OGC and ISO standards regarding object modeling (ISO-19111 / OGC Abstract topic 2), and their Well-Known Text representation (OGC WKT1, WKT2:2015 and latest WKT2:2018). A sqlite3-based database embeds the definitions coming from various authorities: EPSG, IGN-France and the ESRI projection engine. PROJ can now compute optimal and more accurate transformations between two CRS without necessarily using the ill-defined WGS84 pivot (“late-binding”), and support new CRS and transformations. We will discuss the the adoption status of PROJ 6 by the rest of the OSGeo stack and present quickly how to migrate to this new version. None about this event: https://talks.2019.foss4g.org/bucharest/talk/T9AQBS/

Aug 27, 201925 min

Welcome speech from Mr. Dumitru Prunariu, Romanian Space Agency (foss4g2019)

This is the welcome speech of Mr. Dumitru Prunariu. None about this event: https://talks.2019.foss4g.org/bucharest/talk/PCWRFQ/

Aug 27, 201914 min

Finding Sasquatch or how to fake a moon landing (foss4g2019)

A recent fun blog post turned into an idea for synthesizing imagery training data for ML applications. In the post we presented a method for identifying sasquatch using cloud native geospatial methods and tools. This talk will describe the cloud native approach we took and the opensource tools that were used. We will then describe and demonstrate an idea to create synthetic satellite imagery training data using opensource libraries and tools. None about this event: https://talks.2019.foss4g.org/bucharest/talk/SZDFF3/

Aug 27, 201917 min

Safer Navigation Using Electronic Navigational Charts, AIS and RADAR Data powered by FOSS4G (foss4g2019)

Ships have long been required to carry nautical charts and nautical publications to plan and display the ship's route for the intended voyage and to plot and monitor positions throughout the voyage. Today we have complex electronical navigational charts and many of them are freely distributed and are constantly updated. An electronic navigational chart or ENC (IENC for Inland waterways) is an official database created by a national hydrographic office for use with an Electronic Chart Display and Information System (ECDIS). The automatic identification system (AIS) is an automatic tracking system that uses transponders on ships and is used by vessel traffic services (VTS). Even with the advent of high accuray DGPS and AIS, RADAR will continue to be a primary aid to navigation and collision avoidance. During the presentation we will exemplify some usecases that integrate ENC, AIS and RADAR data in various software applications, both web and desktop, onboard for navigation or vessel/infrastructure for coastal monitoring systems. The presentation will cover an aids for navigation monitoring system, a vessel traffic management system and an 3D environment with real time data for validation of inland waterway signs and markings. None about this event: https://talks.2019.foss4g.org/bucharest/talk/FVU8KW/

Aug 27, 201924 min

Remote Sensing Analysis for Urban Research at Scale (foss4g2019)

Image classification of urbanization processes require reference data either for training or for validation. However, there is scarcity of reference labeled datasets specifically to detect urban areas. In this talk, I will present three approaches for collection of open-source reference data that mark built-up areas. None about this event: https://talks.2019.foss4g.org/bucharest/talk/GBJW3P/

Aug 27, 201926 min

WebAssembly - a new technology and its potential for geospatial application (foss4g2019)

WebAssembly is a binary runtime format designed for efficiency, speed and safety. Version 1.0, standardized in a W3C Working Group, is now supported by all major browsers. It opens up a whole new way to create performant web applications and gives new possibilities to share (geospatial!) libraries between desktop and web applications. None about this event: https://talks.2019.foss4g.org/bucharest/talk/PTUAEG/

Aug 27, 201924 min

Mapillary Mobile Apps & SDKs (foss4g2019)

Mapillary SDKs enable any developer to easily build apps with functionality for geotagged image capture, Mapillary authentication, and uploading to Mapillary. In this session, we will explore the SDKs, demo some Mapillary apps that are built on the SDKs, and look at how these apps are being used to solve real-world challenges. None about this event: https://talks.2019.foss4g.org/bucharest/talk/3JMYHJ/

Aug 27, 201921 min

GeoServer WFS3: introduction to the RESTful, schemaless, JSON first download service (foss4g2019)

The WFS 3 specification introduces a number of significant changes in the protocol compared to older versions, to mention just a few: * Small core with basic functionality, extra functionality provided by extensions * OpenAPI/RESTful based * GeoJSON first, while still allowing serving data in GML * No mandate to publish schemas for data Come to this presentation to have a quick introduction to this new protocol version, get updates on its implementation in GeoServer, and get a hint of how the protocol is going to evolve in the future, also based on the June 2019 London OGC API hackaton. None about this event: https://talks.2019.foss4g.org/bucharest/talk/HPCD8D/

Aug 27, 201922 min

GeoStyler - a generic graphical style editor for geodata (foss4g2019)

GeoStyler is a react-based Open Source UI library for creating style editors for WebGIS applications. Cartographic styling of geodata on the web has been a recurring topic in the geoinformatics world. There are various standards - official standards as well as industry standards and project-related styling rules. However, we think that an interactive web-based software is the best solution to enable users to easily style their geodata. There are isolated solutions for some of the above mentioned standards, but no comprehensive web interface for converting styling rules into various formatshas been lacking so far. This universal web interface has been in development since mid-2018. Under the project name "GeoStyler", a web-based Open Source tool for the interactive creation of cartographic style regulations for geodata is being developed. Currently the following formats can be used: Style regulations are OGC SLD, OpenLayers Styles, QML * and Mapbox Style * (* in development). Supported geodata formats are GeoJSON, OGC WFS and Shapefiles. We want to present the current project status and show the general functionality of GeoStyler. We hope to attract the project to users and developers and to contribute to the Community. None about this event: https://talks.2019.foss4g.org/bucharest/talk/PEVW9K/

Aug 27, 201922 min

Interactive (EO) data visualization in the web (foss4g2019)

Browser capabilities have exploded in the past years and with it the possibilities to run large applications without the need of additional software. Still when combining interaction and visualization of larger datasets the number of nodes such as with SVG becomes quite difficult to handle (limited resources). That is why we have been experimenting with solutions to make use of WebGL, mixing rendering and maintaining interaction. In order to be able to render scientific data (as read by geotiff.js) we have developed plotty (https://github.com/santilland/plotty). This tool allows us to quickly colorize and render the data using a shader, making it possible to create interactive and explorable animations. For further data analysis, such as evolution curves through time or larger and complexer plots we have been working on graphly (https://github.com/EOX-A/graphly). In this case for us it was imperative to maintain complex interactivity while using rendered images. This was achieved by combining a second canvas which keeps unique identifier colors for the objects. We would like to present our concepts and experiences of the developed tools. None about this event: https://talks.2019.foss4g.org/bucharest/talk/CDRBHF/

Aug 27, 201925 min

Street-level Imagery as Open Data (foss4g2019)

Not all open data comes in traditional geospatial formats: for years, organizations around the world have collected photo and video logs of roads for annual surveys, but until recently these have been overlooked as a form of open data. Mapillary now hosts over 500,000km of government road imagery. We will explore how this is being used both to improve government workflows and how traffic signs, crosswalks, and other data can be added to OpenSteetMap by citizens using imagery previously seen only by a handful of government employees. None about this event: https://talks.2019.foss4g.org/bucharest/talk/LKFNAS/

Aug 27, 201923 min

One Geonode, many Geonodes (foss4g2019)

GeoNode is a Web Spatial Content Management System based entirely on Open Source tools whose purpose is to promote the sharing of data and their management in a simple environment where even non-expert users of GIS technologies can view, edit, manage, and share spatial data, maps, prints and documents attached. GeoNode was initiated in 2010 by the World Bank and OpenGeo but from 2011 is entirely run by the developer community that the project has been able to attract. It claims some large organizations among its contributors such as the United Nations, the World Bank and the European Commission as well as many NGOs and private companies. GeoNode is based on a set of robust and widespread open source components as Django as a basic framework, GeoServer for geospatial data management and OGC services and OpenLayers/Leaflet as mapping application. It can also communicate with PostgreSQL for vector data management. GeoSolutions has been involved into a number of projects, ranging from local administrations to global institutions, involving GeoNode deployments, customizations and enhancements. A gallery of projects and use cases will showcase the versatility and effectiveness of GeoNode, both as a standalone application and as a ser None about this event: https://talks.2019.foss4g.org/bucharest/talk/7FSDBW/

Aug 27, 201922 min

OSGeo: Your Open Source Compass (foss4g2019)

Very brief introduction to the huge geospatial universe. On this talk, we will cover most of OSGeo software and sibling initiatives to prove that Free and Open Source Solutions is not only a complete stack but the canonical solution when we want to have the best option possible. None about this event: https://talks.2019.foss4g.org/bucharest/talk/YTSZRG/

Aug 27, 201920 min

From Text to Map, a state of art. (foss4g2019)

Natural Language Processing, has been revivified by Deep Learning approaches. This presentation will show what we already can achieve to convert plain Text to Map. Think for instance, to retrieving geometries conveys by an article, a book or a Tweet. None about this event: https://talks.2019.foss4g.org/bucharest/talk/PTX3JW/

Aug 27, 201926 min

Current Status of mago3D, an Open Source Based Digital Twin Platform (foss4g2019)

I'll talk about the recent achievements and improvements of mago3D project, an open source based 'Digital Twin' platform. mago3D(http://mago3d.com) is relatively new project first released in July 2017. The ultimate goal of mago3D project is developing an open source based digital twin platform that can replicate and simulate the real world objects, processes, and phenomena on web environment. mago3D is on its way to achieve this goal now. mago3D has been used in various industry sectors including ship building, urban management, indoor data management, and national defense. In this talk I'll showcase several real projects that employed the mago3D and will talk about what I've learnt during this projects. None about this event: https://talks.2019.foss4g.org/bucharest/talk/UNWMSJ/

Aug 27, 201923 min

Complying with administrative data model requirements like INSPIRE, a Swiss perspective (foss4g2019)

To be INSPIRE compliant is a requirement implied by the European Union. From an administrative view, the desire for standardized data for aggregation is very comprehensible. Producing and delivering data that complies with these requirements comes with a great set of challenges but is key to bring any such system to success. In Switzerland the same requirements exist for standardization and aggregation. To reach this goal, a system with the name INTERLIS is developed for more than two decades already. During this time, a rich ecosystem has started to exist which builds bridges from a formal model all the way to the user interface with tools like ili2db and QGIS Model Baker. All of this built with open source tools that are accessible for anyone. This talk will give an overview over a state of the art toolchain that helps data providers to produce high quality data which can keep up with national and international data requirements. None about this event: https://talks.2019.foss4g.org/bucharest/talk/PK8VZB/

Aug 27, 201925 min

Africa Bees - Geonode business portal for Drone Mapping in Africa (foss4g2019)

Africa Bees was hatched at FOSS4G 2018 in Tanzania! The power of drones and the demand for more detailed mapping in Africa has boomed in many sectors such as development, construction, flood prevention, humanitarian response and environmental safe guarding. Based on open source Geonode servers and connecting QGIS clients a platform is now available for drone pilots in Africa to be empowered and be part of a community that can capture and contribute imagery, 3D mapping and elevation (DSM, DTM and Point Cloud) data for a wider community. Welcome to the hive! None about this event: https://talks.2019.foss4g.org/bucharest/talk/9FW8ZV/

Aug 27, 201926 min

Shared-bike services: from open data platforms to a dataviz application (foss4g2019)

Audio is unfortunately missing from the first 5 minutes. Taking advantage of the emergence of Open Data platforms dedicated to urban services, one can try to understand the functioning of cities. The biggest challenge is no more to get the data; but to structure it, analyze it, extract new information from it, and design clever representations in order to visualize it. This presentation will focus on a recent open source study made by Oslandia about bike-sharing systems in France. Our dev stack is largely based on Python tools, from back-end (a data pipeline designed with Luigi) to front-end (with Flask API and web application). The most important data processing steps will be detailed, and a particular attention will be paid to inherent machine learning problems, like bike stand classification, or bike availability prediction. To that matter, we target a better comprehension of urban areas, and value creation for bike-sharing system users. A live demo of the web application will end the presentation. None about this event: https://talks.2019.foss4g.org/bucharest/talk/CSCYYK/

Aug 27, 201925 min

INSPIRE Reference Validator: status and next steps (foss4g2019)

The INSPIRE Reference Validator is the tool adopted by EU Member States to validate the resources of their Spatial Data Infrastructures. It is an implementation of the ETF, an open source testing framework based on ISO and OGC standards, which performs tests organized into Executable Test Suites (ETS) using SoapUI, BaseX and TEAM Engine. The ETF can be used via either a web application or a REST API; a Docker container is also available for quick deployment. The INSPIRE Reference Validator, recently deployed on the cloud, offers many open source ETS to test data sets, metadata, View Services (WMS, WMTS), Download Services (Atom, WFS, WCS, SOS) and Discovery Services (CSW) against the interoperability requirements set by the INSPIRE Technical Guidance documents. Starting from the context of INSPIRE Action 2017.4 on Validation and conformity testing, the talk will present the latest developments of the ETS and ETF (including the governance of the software project) and describe the future plans. None about this event: https://talks.2019.foss4g.org/bucharest/talk/HJKKG8/

Aug 27, 201926 min

Closing ceremony (camp2019)

A farewell. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10387.html

Aug 24, 201929 min

Fighting back against Libra - Decentralizing Facebook Connect (camp2019)

The power of Facebook derives from its control over your digital identity. However, the fundamental technologies behind anonymous (attribute-based) authentication credentials have existed since the mid-90s. This talk will cover new advances in anonymous authentication credentials, how the work was nearly killed by Facebook, and their real-world implementation, including their use in the Nym project's mix-net, cryptocurrency, and decentralized messaging applications. How do we pratically defeat Facebook and build an anonymous internet? Let's start with the building blocks: Getting rid of Facebook Connect using decentralized and privacy-enhancing technologies, then using that as a lever to build the rest of the system. Anonymous authentication credentials have existed since early blind signature schemes, but have historically been both inefficient and required centralized (if often blind!) trusted third parties. New advances such as UnlimitID and the Coconut signature scheme have allowed the creation of "Nym credentials" that are both decentralized and privacy-preserving. We'll go into three use-cases: <li><b>Mix-networks</b> Credentials allow mix-nets, which provide anonymity at the network level in even a stronger manner than Tor, to both avoid spam (sybil) attacks and grow in a robust, decentralized manner, avoiding the need of proof of work algorithms.</li> <li><b>Messaging</b> In combination with the new IETF MLS (Message Layer Security) protocol to replace Signal, anonymous authentication credentials can enable a more privacy-preserving messenger.</li> <li><b>Cryptocurrency</b> If Facebook is building Libra, we'll show how we can take their fundamental design and make it - or any other cryptocurrency - privacy--preserving using Nym credentials</li> Lastly, we'll review how we build the initial work using European Commission funding from NEXTLEAP and PANORAMIX, how Facebook nearly killed the project, and now how we are building from both non-profit and private sector sources, including hiring ex-Facebook employees to work on privacy. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10317.html

Aug 24, 201941 min

Capitana vs. Benito Salvini - über die Erosion von Grundrechten und was wir dagegen tun können (camp2019)

TBD Die Erosion von Grundrechten schreitet überall in Europa voran, besonders deutlich wird dies anhand der Situation auf dem Mittelmeer. Hier geht es um die aktuelle Lage, darum dass die Bundesregierung genauso verantwortlich dafür ist wie Benito Salvini und um Strategien und was wir gemeinsam dagegen tun können - außer noch mehr Racketen auf dem Mittelmeer zu stationieren. about this event: http://talx.thm.cloud/thms/talk/TX3WKW/

Aug 24, 201933 min

Why Nobody cares, and only You can save the World (camp2019)

This talk aims to provide a possible explanation why most people seem to care very little about the unethicality of much of today’s technologies. It outlines what science and philosophy tell us about the biological and cultural evolutionary origins of (human) morality and ethics, introduces recent research in moral cognition and the importance of moral intuitions in human decision making, and discusses how these things relate to contemporary issues such as A(G)I, self-driving cars, sex-robots, “surveillance capitalism”, the Snowden revelations and many more. Suggesting an “intuition void effect” leading standard users to remain largely oblivious to the moral dimensions of many technologies, it identifies technologists as “learned moral experts”, and emphasizes their responsibility to assume an active role in safeguarding the ethicality of today’s and future technologies. Why is it that in a technological present full of unethical practices – from the “attention economy” to “surveillance capitalism”, “planned obsolescence”, DRM, and so on and so forth – so many appear to care so little? To attempt to answer this question, the presentation begins its argument with an introduction into our contemporary understanding about the origins of (human) morality / ethics. From computational approaches a la Axelrod’s Tit for Tat, Frans De Waal’s cucumber-throwing monkeys and Steven Pinker’s “Better Angles of our Nature”, to contemporary moral psychology and moral cognition and these fields’ work on moral intuitions. As research in the last couple of decades in these fields suggest, it appears that much, if not most of (human) moral / ethical decision making is based on moral intuitions rather than careful, rational reasoning. Joshua Greene likens this to the difference between the “point-and-shoot” mode and the manual mode of a digital camera. Jonathan Haidt uses a metaphorical elephant (moral intuition) and his rider (conscious deliberation) to emphasize the difference in weight. These intuitions are the result of both biological and cultural evolution – the former carrying most of the weight. The problem with this basis for our moral decision making is, as this presentation will argue, that we have not (yet) had the time to evolve (both culturally and biologically), “appropriate” moral intuitions towards the technologies that surround us everyday, resulting in an “moral intuition void” effect. And without initial moral intuitions in the face of a technological artifact, neither sentiment nor reason may be activated to pass judgment on its ethicality. This perspective allows for some interesting conclusions. Firstly, technologists (i.e. hackers, engineers, programmers etc.) for one, who exhibit strong moral intuitions toward certain artifacts have to be understood as “learned moral experts”, whose ability to intuitively grasp the ethical dimensions of a certain technology is not shared by the majority of users. Secondly, users cannot be expected to possess an innate sense of “right and wrong” with regards to technologies. Thirdly, entities (such as for-profit corporations) need to be called out for making deliberate use of the “moral intuition void” effect. All in all, this presentation aims to provide a tool for thinking that may be put to use in various cases and discussions. It formulates the ethical imperative for technologists to act upon their expertise-enabled moral intuitions, and calls for an active “memetic engineering process” to “intelligently design” appropriate, culturally learned societal intuitions and responses for our technological present and future. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10251.html

Aug 24, 201944 min