PLAY PODCASTS
Chaos Computer Club - archive feed

Chaos Computer Club - archive feed

14,494 episodes — Page 143 of 290

inous Initiative - An eco-system for OGC IndoorGML (foss4g2019)

Due to the growing population in urban areas, the building structures become more huge and complicated. The demands for geospatial information and services in indoor space are increasing as well as outdoor spaces. An OGC standard, called IndoorGML, was published to provide a standard indoor spatial model and exchange data format. And inous R&D initiative has been established to set up an eco-system for IndoorGML based on open source software. In this talk, we will present an overview of this initiative and details of the achievements so far. First, it will covers several approached for 3D indoor map construction in IndoorGML from point cloud, blueprint maps, as well as crowdsource. Second, the conversion issues from CAD and BIM data to IndoorGML will be also discussed in the talk. Third, we will present several interesting application services of the initiative such as sharing IndoorGML data via 3D geo-portal and voice map service for blind people. None about this event: https://talks.2019.foss4g.org/bucharest/talk/ZMTKLV/

Aug 27, 201919 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

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

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

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

Automated GIS-based Complex Developed for the Long-term monitoring of Growing Season Parameters Using Remote Sensing Data (foss4g2019)

A number of climate change research projects discover dependencies between dynamics of vegetation indexes and dynamics of meteorological parameters, which make possible estimation and monitoring of growing season parameters using remote sensing data. In our study, we use Normalized Difference Water Index (NDWI) that can be derived automatically from the daily satellite imagery collected by MODIS sensor. The NDWI indicates amount of liquid water in plant tissue, and then reflects change of vegetation growing conditions and particularly growing season change. To ensure monitoring of growing season parameters we elaborated an automated software complex that incorporates desktop Geographic Information System (GIS) software (QGIS was used), geospatial database and complex of computational tools. The GIS is used as an infrastructure element for operating and visualization purposes, while the database together with computational tools enable storage and multipurpose processing of meteorological and remote sensing data. The meteorological data is collected for the past period of 130 years and NDWI data for the 20 years. Developed complex is tested on the example of Republic of Komi (Northern part of European Russia) that is covered by Taiga and Tundra natural zones and impacted by different climate forming factors. Currently we describe architecture of the elaborated complex and design of data processing chains. Elaborated complex ensure automation of downloading raw remote sensing data and reprocessing it into gridded NDWI maps. In this context, it can be underlined that daily collected MODIS imagery can be discovered as big geospatial data, due to this we were needed to resolve a number of optimization tasks to implement its processing. Subsequently, NDWI data is used to produce gridded map series that reflects time and spatial dynamics of growing season characteristics. Produced data have a special significance for areas with sparse meteorological network. Keywords: GIS, Remote Sensing Data, Climate Change, Growing Season, Vegetation Indexes, MODIS, NDWI. None about this event: https://talks.2019.foss4g.org/bucharest/talk/77BJYC/

Aug 27, 201912 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

Mapchete - tile-based geodata processing (foss4g2019)

Mapchete (https://github.com/ungarj/mapchete) is a tool written in Python which helps processing large amounts of geodata such as global high resolution datasets. It does so by executing a user-defined Python function on smaller chunks of data (tiles). The standard tiling schemes follow the well-known tile pyramid schemes used by WMTS which also enable mapchete to let the user easily preview process outputs using a built-in development server (Flask) hosting an OpenLayers page. By processing large areas through their much smaller tiles or metatiles, possible memory errors can be avoided. Furthermore, tiles can be processed on multiple CPU cores in parallel which speeds up the processing time. All geospatial data (i.e. raster and feature data) are internally handled and exposed to the user-defined process function either as NumPy arrays (raster) or GeoJSON-like dictionaries (features) which can easily be edited with well-known Python packages like shapely or scipy. For I/O operations mapchete makes heavy use of rasterio (https://github.com/mapbox/rasterio) and Fiona (https://github.com/Toblerity/Fiona). It can read data formats supported by these packages and can currently write outputs into WMTS-like tile directories of GeoTIF None about this event: https://talks.2019.foss4g.org/bucharest/talk/8TLYVA/

Aug 27, 201929 min

A Tensor Based Framework For Large Scale Spatio-Temporal Raster Data Processing (foss4g2019)

In this paper, we address the course of dimensionality and scalability issues while managing vast volumes of multidimensional raster data in the renewable energy modeling process in an appropriate spatial and temporal context. Tensor representation provides a convenient way to capture inter-dependencies along multiple dimensions. In this direction, we propose a sophisticated approach of handling large-scale multi-layered spatio-temporal data, adopted for raster-based geographic information systems (GIS). Moreover, it can serve as an extension of map algebra to multiple dimensions for spatio-temporal data processing. We use the multidimensional tensor framework to model such problems and apply computational graphs for efficient execution of calculation processes. In this approach, spatio-temporal data can be represented as non-overlapping, regular tiles of 2-D raster data, stacked according to the time of data captured. As a case study, we quantify the spatio-temporal dynamics of solar irradiation calculations and 2.5-D shadow calculations for cities at very high space-time resolution using the proposed framework. For that, we chose Tensorflow, an open source software library developed by Google using data flow graphs and the tensor data structure. We provide a comprehensive performance evaluation of the proposed model against r.sun based on GRASS GIS. Benchmarking shows that the tensor-based approach outperforms r.sun by up to 60%, concerning overall execution time for high-resolution datasets and fine-grained time intervals for daily sums of solar irradiation [Wh.m-2.day-1]. Precisely, the main characteristics of the proposed framework include defining, optimizing and efficiently calculating mathematical expressions involving multi-dimensional arrays (tensors); Transparent use of GPU computing such that the same code can be run either on CPUs or GPUs; Implicit parallelism and distributed execution with high scalability offered by data-flow based implementation. Moreover, the Python implementation of the proposed model makes it GRASS GIS ‘Add-on’ compatible. None about this event: https://talks.2019.foss4g.org/bucharest/talk/PUNTKE/

Aug 27, 201916 min

State of the QGIS project (foss4g2019)

The presentation is more a "behind the scenes" talk, covering topic such as: * the people behind QGIS * the infrastructure behind QGIS * quality assurance efforts * organization and charter * challenges and changes in our organization * financial situation * challenges from being a large OSGEO project None about this event: https://talks.2019.foss4g.org/bucharest/talk/FXAJPH/

Aug 27, 201924 min

Geo-Analytic Functions for UN Field Operations – UN Open GIS: Spiral 3 Geo-Analysis (foss4g2019)

As the United Nations (UN) is a complex organization carrying out divers tasks in the world, most functions for an enterprise GIS are required. In order to support the requirements from the UN, the UN Open GIS Initiative was founded in 2016 with goals to provide GIS solutions for the UN based on open source software. The working group 3 of the initiative, named Spiral 3, aims to develop and deliver geo-analytic functions to the UN. In particular, a number of geo-analytic functions are developed by Spiral 3 to support field operations such as UN peace keeping operation. In this paper, we present a development use-case of geo-analytic functions for the UN, which is composed of four steps; analysis of requirements and functional specification, definition of development environment and system architecture, system development and test, and documentation of user manual and education materials. First, a comprehensive study on UN operations has been carried out, which covers the following tasks; situational awareness, security operations, military operations, protection of civilians, human rights violation investigation, epidemiological analysis, mission’s support and logistics operations, electoral support, disarmament, demobilizations and reintegration program, and humanitarian response operations. From this study, we derived 26 primitive geo-analytic functions. The users of geo-analytic functions for these tasks include mostly officers at field offices and geo-analysis experts at mission headquarters. Second, the system development environment was determined as Java using GeoTools for the compatibility and portability. The geo-analytic functions were developed as a plug-in of uDig, which is a Java-based open source desktop GIS. It means that the preparation and pre-processing of data for geo-analysis and the visualization of the analysis are supported by uDig. Third, an experiment of the developed system was performed with a scenario of Ebola virus spread. It shows that the system properly supports the field operations of Ebola virus spread. The experiment also shows the strength and weakness of the developed geo-analysis functions in comparison with commercial GIS. As the fourth step of the development, a user-manual is published via web and an education material was also developed under the OSGeo-UN Committee Educational Challenge Program. Through the use-case study presented in the paper, we would like to share the experiences and lessons about the development of geo-analytic functions, which would be used as a reference for other geo-analytic function development. None about this event: https://talks.2019.foss4g.org/bucharest/talk/PRXB9V/

Aug 27, 201927 min

Integration of GIS in non-GIS applications (foss4g2019)

In GIS software development there is often a need to seamlessly integrate a simple or more complex GIS solutions into new or existing non-GIS applications. Depending on the non-GIS system, number of different integration technologies are used. From communication standpoint there is a client-side integration based on WebSocket technology, JS API or using more recent technologies like custom elements (e.g. Angular Elements). From complexity and functionality standpoint there is an option to use custom developed lightweight GIS or full featured GIS viewer/editor based on our own IGEO platform. This talk will share our experience and challenges we've ran into during the years of GIS development and integrations with other in-house or external systems. None about this event: https://talks.2019.foss4g.org/bucharest/talk/ATYAYW/

Aug 27, 201929 min

FOSS tools for modelling natural hazards: the HortonMachine library (foss4g2019)

The climate change and the recent extreme events occurred all over the world draw again the attention to the natural hazards both for prevention and for management aspects. In this context, environmental modelling can help in mapping hazards and risks zones and to support decision makers in building functional infrastructures with low environment impact and for a safe urban planning. In the last decades many researchers tried to extract useful information from digital data and in particular from Digital Terrain Models (DTM) with the development of ad-hoc algorithms and tools. In the meanwhile the data availability increased and high precision DTM are available almost all over the world. The algorithms contained in the HortonMachine library are the result of more than 10 years of research, development and real application of people from different research institutes and professionals working in the field of environmental engineering. The HortonMachine library contains tools for data management, data collection in the field, and environmental modelling in particular related to hillslope stability, floods, debris flow, forestry management and woody floods. None about this event: https://talks.2019.foss4g.org/bucharest/talk/DTWPFR/

Aug 27, 201924 min

G3W-SUITE: a new framework for the QGIS projects WEB publication. (foss4g2019)

**G3W-SUITE** is a modular, client-server application for managing and publishing interactive **QGIS** cartographic projects of various kinds in a totally independent, simple and fast way. The application can organize cartographic contents in a hierarchic way, helping the content management in structured contexts, such as public institutions, parks, companies etc. Accessing administration, consultation of projects, editing functions and use of different modules are based on a hierarchic system of user profiling, open to editing and modulation. Its main components are the one for basis administration, **G3W-ADMIN**, and the visualization client for cartographic contents **G3W-CLIENT*. They communicate through a series of API REST which makes them totally interchangeable. **G3W-ADMIN** was developed through Python, using Django, a trustworthy, solid framework. **G3W- CLIENT** was developed using a modular approach and is based on a “reactive programming” paradigm, using Vue.Js like Javascript framework and OpenLayer3 for rendering of geographic data. G3W-SUITE and, in particular G3W-ADMIN and G3W-CLIENT modules, are released on **GitHub** with **Mozilla Public Licence 2.0** (https://github.com/g3w-suite) None about this event: https://talks.2019.foss4g.org/bucharest/talk/WTZMJN/

Aug 27, 201928 min

3D geo data in the Mapbox-gl viewer with 3D tiles (foss4g2019)

Mapbox GL JS is a powerful JavaScript library that uses WebGL to render interactive maps from vector tiles and other sources. Mapbox has recently added custom layers to its set of allowed layer types. The custom layer allows developers to render custom data while directly using the the WebGL render engine. We have implemented mapbox-gl custom layers for rendering 3D tiles and point cloud data. This enables the already feature rich Mapbox rendering engine to be combined with web-visualization of true geographic 3D data directly from OGC formats. An advantage of this is that you can use the mapbox navigation and base-layer rendering while at the same time complex 3D objects directly to your web browser. in a way similar to vectortiles in 2D space. In this talk we will demonstrate an implementation of a 3D Tiles viewer as a Mapbox GL JS custom layer. WebGL rendering is implemented using three.js. This addition enables you to add a 3D-tiles layer with true 3D objects on top of your existing mapbox implementation just as easy as you would be adding a vector-tile service. We will discuss some technical issues we have encountered, give examples on how you can use it and show an extensive demonstration of what you can do with it. None about this event: https://talks.2019.foss4g.org/bucharest/talk/NUXEVS/

Aug 27, 201916 min

Breaking the curse of raster processing software-as-a-service (foss4g2019)

The emergence of software-as-a-service platforms for geoprocessing of large raster datasets provides a tempting and fast way to try new raster algorithms or indicators. As with any other SaaS platform, the downside is the inability to run the same process in our own computers; be it because of recklessness during systems design or because of a will and purpose to create vendor lock-in. This talk will analyze such a case of vendor lock-in in raster geoprocessing SaaS, and a means of running the same raster processes efficiently in the end-user's (or operator's) hardware (so-called "edge computing" for the buzzword-inclined). Moving away from SaaS in this case even provides extra benefits, such as better data cacheability and real-time algorithm tweaking. None about this event: https://talks.2019.foss4g.org/bucharest/talk/YKC3DT/

Aug 27, 201927 min

Visual Hierarchies in 3D Cartography with vts-geospatial (foss4g2019)

The brave new world of 3D mapping has taken little notice of time-proven rules of cartography, as if arbitrary viewing angles could somehow obliterate the need to convey a clear hierarchy of features. In this talk we will show how the vector styling capabilities in vts-geospatial may be used to overcome that long-standing shortcoming. From the choice of a basemap through the definition of intellectual and visual hierarchies to the coding of visual style, we will show how to produce 3D maps which aspire not only to the aesthetical appeal but also to the information value of a real cartographic product. None about this event: https://talks.2019.foss4g.org/bucharest/talk/QA3M7X/

Aug 27, 201921 min

The UN Open GIS initiative – Vision, strategies, and achievements (foss4g2019)

With an aim of developing and delivering open source geospatial solutions to the UN, the UN Open GIS Initiative was established in March 2016, taking full advantage of mission partner expertise from UN member states, technology contributing countries, international organizations, academia, NGO’s and private sector. In order to fulfil the diverse requirements of UN field operations, the scope of the UN Open GIS Initiative covers the geospatial software of the UN Spatial Data I nfrastructure. The activities are organized into four working groups, referred to as ‘spirals’; Spiral one for geo-portal and system infrastructure, Spiral two for capacity building, Spiral three for geo-analytic functions, and Spiral four for geospatial data collection. This talk will cover an overall introduction of the UN Open GIS initiative including the vision, strategies, technical roadmaps, and achievements of each working group. The experiences and lessons learned from the initiative will be shared during the talk, which we hope will be helpful to the UN as well as developing countries. We will also discuss how to leverage the FOSS4G community and the UN Open GIS Initiative. None about this event: https://talks.2019.foss4g.org/bucharest/talk/USLYT8/

Aug 27, 201926 min

State of GeoNode (foss4g2019)

GeoNode is an open source framework designed to build geospatial content management systems (GeoCMS) and spatial data infrastructure (SDI) nodes. Its development was initiated by the Global Facility for Disaster Reduction and Recovery (GFDRR) in 2009 and adopted by a large number of organizations in the following years. Using an open source stack based on mature and robust frameworks and software like Django, OpenLayers, PostGIS, GeoServer and pycsw, an organization can build on top of GeoNode its SDI or geospatial open data portal. GeoNode provides a large number of user friendly capabilities, broad interoperability using Open Geospatial Consortium (OGC) standards, and a powerful authentication/authorization mechanism. Supported by a vast, diverse and global open source community, GeoNode is an official project of the Open Source Geospatial Foundation (OSGeo). None about this event: https://talks.2019.foss4g.org/bucharest/talk/DXM898/

Aug 27, 201926 min

mapillary2osm: OpenStreetMap Data from Computer Vision (foss4g2019)

Mapillary’s computer vision extracts point data from street-level images, with these detections being used to fix and update maps. Earlier this year, Mapillary worked with OpenStreetMap communities to turn automatic computer vision detections into better map data. This was an insightful project that showed us which detections were useful for the OpenStreetMap community and end users. It’s also an early step to create a feedback loop where humans provide input to help us improve the quality and relevance of automatically derived features. None about this event: https://talks.2019.foss4g.org/bucharest/talk/LM3CLQ/

Aug 27, 201920 min

GRASS GIS in the cloud: actinia geoprocessing (foss4g2019)

Initially called GRaaS (GRASS as a Service), actinia has been developed to exploit GRASS GIS functionality via HTTPS REST API. GRASS locations, mapsets, vector and raster data as well as spatio-temporal data are available as resources to allow their management and visualization. With the existing (e.g. Landsat) and also recently emerging (Copernicus Sentinel) big geodata pools which are growing day by day, it is designed to follow the purpose of bringing algorithm to cloud geodata. It helps to prepare, analyse and provide a large amount of geoinformation without the need to have know-how of the data, of analysis, appropriate software (for automatisation) or scalable hardware resources. Some of the features are persistent and ephemeral processing, user management to limit e.g. pixels, processes and duration of calculations as well as logging of API calls and used resources by each user. Another advantage is its easy deployment with docker. When deployed in a cloud based environment with OpenShift or docker-swarm, the integrated load balancer handles a cluster automatically. Following the spirit of free and open software, we are proud to have emerged as an OSGeo community project and look forward to enlarge the actinia community. None about this event: https://talks.2019.foss4g.org/bucharest/talk/GCNPMC/

Aug 27, 201918 min

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

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

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

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

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

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

Resilience Academy as a sustainability solution for urban resilience skills development in n Tanzania (foss4g2019)

This abstract focuses on the Resilience Academy which represents the commitment of the World Bank to improve Tanzania’s skill base and to maximize the impact and sustainability through the establishment of university partnerships that transfer skills and risk management tools to the next generation. The Resilience Academy concept embraces the idea that supports the development and sustainability of geospatial and urban resilience competencies in Tanzanian universities and thus enhances the sustainability of digital data set management and eventually risk management practices in Tanzania. None about this event: https://talks.2019.foss4g.org/bucharest/talk/XAFQB9/

Aug 27, 201920 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

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

JuliaGeo: A Fresh Approach to Geospatial Computing (foss4g2019)

2018 saw the release of [Julia](https://julialang.org/) 1.0, a high-level, high-productivity programming language, with the performance of a low-level language like C. That means looping over all features or cells and applying your own functions is encouraged. The [JuliaGeo](http://juliageo.org/) organization was first started in 2015 to provide support for working with geospatial data in the Julia programming language. JuliaGeo currently provides high-level APIs with comprehensive support for OSGeo libraries like GDAL, GEOS and PROJ. In this talk, we introduce Julia and the JuliaGeo packages, showcase interactive workflows, and talk about next steps. None about this event: https://talks.2019.foss4g.org/bucharest/talk/DH8CQR/

Aug 27, 201921 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

Infrastructure Review (camp2019)

about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10390.html

Aug 24, 201946 min

Die Zukunft hat zwei Wellen (camp2019)

Freifunk steht vor dem Abgrund, der Flash ist voll, der RAM ist zu klein, so löt doch einfach neuen ein? Wir betrachten hier die aktuellen Probleme die viele Communities mit ihrer Hardwarebasis erleben und betrachten die Vor- und Nachteile der verschiedenen Wege, diese Probleme zu lösen. Freifunk steht vor dem Abgrund, der Flash ist voll, der RAM ist zu klein, so löt doch einfach neuen ein? Wir betrachten hier die aktuellen Probleme die viele Communities mit ihrer Hardwarebasis erleben und betrachten die Vor- und Nachteile der verschiedenen Wege, diese Probleme zu lösen. Dabei schauen wir uns zurerst die aktuelle Entwicklung auf dem WLAN-Hardwaremarkt an und welche Unterstützung Gluon bereits für Moderne WLAN-Hardware bietet, wie man selber die Unterstützung neuer Hardware verbessern kann und dem angehenden Freifunker erleichtert das richtige Gerät für sich und seinen Anwendungsfall zu finden. Im Anschluss betrachten wir die aktuellen Herausforderungen die viele Communities gerade mit stark limitierter Hardware trifft und möchten auch einen Blick auf kommende Herausforderungen werfen. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10272.html

Aug 24, 201931 min

ZpS - Bildung einer kriminellen Vereinigung (camp2019)

Zentrum für politische Schönheit Das Holocaustmahnmal Bornhagen des Zentrums für Politische Schönheit veranlasste den Kaisertreuen Staatsanwalt Martin Zschächner gegen jene Gruppe als "kriminelle Vereinigung" zu ermitteln - bzw: nicht zu ermitteln. Wie kam das Zentrum auf eine Liste mit der Al-Nusra-Front und was macht Zschächner heute? Eine reise in den tiefen rechten Sumpf der Thüringer Justiz. about this event: http://talx.thm.cloud/thms/talk/QHMZQM/

Aug 24, 201929 min

c3Power Monitoring CCCamp 19 (camp2019)

<pre class="moz-quote-pre">Infrastructure Review des Camp 2019 Stromnetz aus Sicht des auf der GPN in der Theorie vorgestellten Low Cost Power Monitoring. Aufbau des Monitoring-Netzes, Inbetriebnahme und Ergebnisse von Tag -1 bis Tag 4. Wie verhält sich das Netz von c3Power auf dem Camp 2019 zu den verschiedene Tageszeiten, wie sieht die Auswertung von z.B. Lastverteilung, Netzoberwellen, Fehlerrate aus. Visualisierung der Daten in Grafana, Server Infrastruktur. Do:s and don't:s vom Aufbau der Hardware, Betrieb bei 50 Grad plus und 10 cm Wasserstand im Freien. Stabilität des Campnetzes in den ersten 4 Tagen. Integration ins DMR Funknetz über MMDVM Hotspots zum Absenden der Fehlermeldungen als DMR SMS. Abhandeln der Störmeldungen. Impressionen vom c3power Team während des Events.</pre> about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10397.html

Aug 24, 201939 min

Making video games in a weekend (camp2019)

Are you curious about making your own video game? Game jams are a brilliant opportunity to try that, and a fun challenge for interdisciplinary teams of all skill levels! They're basically hackathons, but for video games - you're given a certain theme, and are encouraged to make a game around that in two or three days. In this talk, I want to empower and inspire you to try that yourself! When I first joined in the large, international game jam "Ludum Dare" in 2016, I found it a very rewarding experience, that got me in a flow-like state of mind. I liked it so much that I've since participated 10 times in a row - at this point, I have tons of experience, which I want to share with you! This talk is split into three parts: First, I'll quickly go over the history of game jams, and introduce you to some of the largest ones, like Ludum Dare and the Global Game Jam. Second, I'll talk about my personal experience with game jams: I'll explain how I got into it, and showcase some games I worked on! I'll also share the development process behind them, and reflect on what went well and what didn't. And finally, I want to empower you to try this for yourself. Specifically, I'll explain how the "Ludum Dare" game jam works, and share some tips, tricks, and resources I have assembled over the years, that would have been useful for myself as I just was starting out. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10278.html

Aug 24, 201934 min

"Service Point" The Display (camp2019)

The walls of CCC Berlin are filled with posters, analog as well as digital art, and also: a large LED display! The display is a proper piece of dual-use technology, serving both as hack material for fun and as a useful tool e.g. for taking notes during meetings. Come join us on a technology tour through the history of this fun piece of kit, starting with a look at the original hardware and software architecture and moving on through the many following software, hardware and mechanical hack generations in and around the display. The display has come quite far. Originally one could watch individual characters render on the 71680 LEDs, now 35 fps video playback is effortless, and it functions as a hub for collaborative visual expression using both text and graphics. Key words: 6502, CSS, Ethernet, ATXMEGA, JavaScript, Cortex-M3, WebSockets, AM335x, BeagleBone Black, PRU, Etherpad, CNC machining, Aluminium Welding about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10339.html

Aug 24, 201938 min

Visualization of networks using physics (camp2019)

The beautifully complex structures often found in Nature arise from the collective interaction of huge numbers of particles moving under very simple forces. Starting from this fact, I will present how we can encode simple physical properties into large scale networks in a way that mimics a physical system and leads to elegant structures in 2d or 3d space. After introducing some basic concepts, a large part of the talk will consist of animated demonstrations of network evolution towards a final layout. The talk is aimed at scientists and curious non-scientists alike. Large networks (graphs) appear in many types of human activity: computer, social, transportation, biological, and other networks that model the various connections and interactions in a system. Networks are often depicted visually as sets of points on a plane connected by lines - at large scales however, this image becomes too difficult to interpret due to high density of points and/or too many line crossings. So it is essential to determine an ideal placement of the network's parts in order to reveal its structure in the most clear and informative way. The laws of physics inherently contain dynamics capable of creating aesthetically appealing arrangements of high complexity, as can be seen in snowflakes, soap bubbles, crystals, or molecules in 3d space. By encoding physical qualities and dynamics in a network, we can leverage the laws of motion and the corresponding forces to let them shape the network. As the network is now acting like a physical system, it evolves towards a configuration of minimum energy and reaches a final state that exposes the symmetries, connected parts, and other features, in analogy to the wonderfully complex structures found in Nature. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10352.html

Aug 24, 201936 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

Deaths per TWh (camp2019)

Climate change and the discussion about reducing CO2 emissions to ensure matching the Paris agreement currently is the most important topic in our political and economic discussions. We all agree reducing emissions is a necessity, but how can we possibly achieve this in a world that consumes more energy than ever before? And which price are we willing to pay for it? Climate change and the discussion about reducing CO2 emissions to ensure matching the Paris agreement currently is the most important topic in our political and economic discussions. We all agree reducing emissions is a necessity, but how can we possibly achieve this in a world that consumes more energy than ever before? And which price are we willing to pay for it? [The Paris agreement](https://ec.europa.eu/clima/policies/international/negotiations/paris_en) sets out a global action plan to put the world on track to avoid dangerous climate change by limiting global warming to well below 2°C and pursuing efforts to limit it to 1.5°C. This can only be achieved by reducing emissions - this primarily means CO2 emission. So far, so good. But let's face the truth: We NEED energy. Our whole world is addicted to it, and cutting the power lines is no option for today's society, economy, and our daily lives. We need energy, therefor we need power plants. Power plants need energy sources for transforming them into electrical energy. These plants can be fuelled by various sources: Coal, wind, solar, nuclear, natural gas, biomass, and oil, just to name the major ones. Let's assume for a moment we could build a completely new power infrastructure for a country from scratch under the following prerequisites: * Minimal CO2 emissions * As little impact as possible (environment, health, economics etc.) * Affordable price * Available sources * Lowest possible fuckup factor This task can be approached by translating it into an optimization problem: Finding the ideal energy mix taking into account the conditions listed above. This talk presents an analysis of this optimization problem by comparison of the relevant factors (emissions, affordability, impact, sources) of different energy sources (coal, natural gas, wind, solar, biomass, nuclear and oil). Our aim is to categorize different energy sources under a strict scientific regime without emotional debates, putting price tags on each of them not only made of money but also factors like emissions, fuckup factors, health concerns, and the cost of human lives per TWh. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10193.html

Aug 23, 201941 min

Global Warming Sucks! (camp2019)

Alle reden vom Klimawandel, doch niemand erklärt was da gerade passiert. Wird es in Zukunft einfach nur schön warm oder wird die Veränderung der Umwelt die Menschheit in die Knie zwingen? Warum der Temperaturanstieg der Atmosphäre einzigartig ist und welche Folgen dies für Land, Meer und Gletscher hat, erklärt die angehende Polarforscherin Maria-Elena Vorrath. Die Diskussion über den menschengemachten Klimawandel ist in den Medien stark verzerrt und es ist schwer sich als Laie in der Informationsflut zu orientieren. Der Vortrag "Global Warming Sucks!" soll eine breiten Zuhörerschaft über die aktuelle Situation des sich wandelnden Erdklimas sachlich aufklären. Es wird erklärt, wie der Ausstoß von Treibhausgasen die Atmosphäre seit der Industrialisierung beeinflusst und auf die bisherigen beobachteten Veränderungen in allen Teilen der Erde eingegangen. Anschließend werden einige globale Kipppunkte, die sensiblen Bausteine des Klimasystems, vorgestellt, und ihre Reichweite, Verwundbarkeit und Bedeutung für die Menschheit verdeutlicht. Angesichts der wissenschaftlichen Erkenntnisse können die Zuschauer nun öffentliche Auseinandersetzungen besser einordnen und kommentieren und ihren Beitrag zur Lösung der Klimakrise bestimmen. Fragen sind ausdrücklich erwünscht. about this event: http://talx.thm.cloud/thms/talk/P9JCSV/

Aug 23, 20191h 8m

From the Sputnik 'Beep' to messages from Pluto (camp2019)

To tinker with receivers for space-signals, its good to know the different space communication standards. And to understand space standards, it doesn't hurt to get an overview of how to transmit data in the first place. Since the first "beep" from Sputnik, there have been many different artificial signals from satellites, capsules and space stations being send back to earth. These multitude of RF (and laser...) signals not only show how different mission requirements dictate the system design for different spacecrafts, but also chronicle advances in communication technology since the advent of the space age. So get to know how to understand the languages spoken by Voyager, GPS and satellite TV, and learn basics of RF communication in the process! about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10351.html

Aug 23, 201935 min

Privacy: An Unequally Distributed Resource (camp2019)

In this talk, we'll investigate how privacy has become an indicator of privilege in our world. Does everyone have equal access to privacy? How does unequal privacy affect the lives of people? Should we treat privacy like other privileges (i.e. wealth, race, gender)? If we have access to privacy, is this something we can share? By the end of the talk, we'll have explored how the concept of privacy has changed, what we can do about these changes and some practical steps for making privacy more accessible for those who most need it. This is not your average privacy talk. This is, instead, a study of how the word and concept of privacy has changed over time. These changes, which are in part our own creation, have enabled privacy to be both unequally applied and co-opted by a variety of companies and movements. In this lecture, we’ll discuss the following questions: - What is privacy in our current society? - How has our understanding of privacy changed over time? - Does everyone have equal access to privacy? Why or why not? - Who is most impacted by the rise of technological surveillance? - How can we use our privilege to help protect others’ privacy? Who should attend: - People interested in privacy regardless of "professional" knowledge or level of experience - Folks doing anti-oppression work - People who already disagree with me after reading this abstract :-D While the format is a lecture, I hope we can find an open space afterwards to continue debating and discussing these questions and the theme as a whole. My goal is to help educate and inspire work around privacy that benefits not just those who attend the Camp, but instead reaches beyond our privacy-aware social circles, to help those who do not have access to privacy. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10192.html

Aug 23, 201945 min

Solare Brennstoffe - Wasserstoff aus Sonnenlicht (camp2019)

Sonnenenergie deckt heute erst etwas über 2% des weltweiten Energiebedarfs durch Umwandlung von Sonnenlicht in elektrische Energie. Eine der Möglichkeiten, um diese zu speichern, ist die Elektrolyse von Wasser, um Wasserstoff zu erhalten. Was aber wäre, wenn man Wasserstoff direkt gewinnen könnte? Eine schnelle Übersicht über Sonnenlicht, das Prinzip hinter Photovoltaischen Solarzeiien, und wie photoelektrochemische Zellen, die flüssiges Wasser in seine Bestandteile Wasserstoff und Sauerstoff spalten können, beide Prozesse miteinander kombinieren können. Die von uns Menschen verantworteten CO2-Emissionen müssen reduziert werden, aber wie? Die Erzeugung von elektrischer Energie aus Sonnenlicht wird mit großer Sicherheit einen signifikanten Beitrag zur Deckung des weltweiten Energiebedarfs liefern. Zuerst sehen wir uns das Spektrum der Sonne an, und wie viel dieser Energie wo auf der Erde ankommt. Wenn dieses Licht auf Atome trifft, wie die Siliziumatome in einer Solarzelle, kann es diese in einen energiereicheren Zustand anregen, aber nur ein Teil des Sonnenlichts hat genug Energie, um diese Anregung zu erreichen. Was für Konsequenzen hat das für die Effizienz von Photovoltaik-Zellen? Jeder kennt die blau-schillernde Silizium Photovoltaikzelle, die Größen von wenigen Quadratzentimeter in einem Taschenrechner über Installationen auf Hausdächern mit einigen Kilowatt bis zu Solarparks, die mehrere Megawatt Spitzenleistung abgeben können. Solarenergie ist vom Tag-Nacht-Zyklus der Erde und von der Jahreszeit abhängig. Um die Energieversorgung auch z.B. im Winter bei geringerer Sonnenintensität decken zu können, muss diese längerfristig gespeichert werden. Verschiedene Strategien sind denkbar, eine davon die Umwandlung in chemische Energie in Form von Wasserstoff durch Elektrolyse von Wasser. Beide Technologien bringen Umwandlungsverluste mit sich und erfordern teilweise teure Metalle und viel Energie bei der Herstellung. Aber es gibt eine Klasse an Halbleiter-Materialien, die, wenn man sie in Wasser eintaucht und mit Sonnenlicht bestrahlt, die Lichtenergie direkt auf das Wasser übertragen, und es in Wasserstoff und Sauerstoff spalten können. Man umgeht die Kopplung von Photovoltaik und Elektrolyse. Viele dieser halbleitenden Materialien sind mit weit weniger Energieaufwand herzustellen als Silizium. Besondere Aufmerksamkeit ist auf häufig vorkommende und damit gut verfügbare Metalle gerichtet. Eisenoxid - Rost, oder Titandioxid - das Pigent aus weißer Wandfarbe, sind zwei Beispiele, die jeder kennt, ihre Superpower aber sehr warscheinlich nicht. Noch sind die Wirkungsgrade gering und marktreife Lösungen noch nicht absehbar. Wenn der Ansatz allerdings erfolgreich ist, könnte dies ein Durchbruch für unsere Energieerzeugung sein, und nebenbei einen Teil des Problems lösen, Energie zu speichern und zu transportieren. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10377.html

Aug 23, 201941 min

Cyborg Foundation (camp2019)

Presentation of the Cyborg Foundation, its philosophy, members and developed projects. Based in Barcelona and founded in 2017, CFL is an association that gives voice to non-human identities. The world around us is full of things that our body is not able to perceive. However, what would happen if we could create new senses that would allow us to decide how we want to perceive our surroundings? Supported by a multidisciplinary team, we conform a group of engineers, philosophers, designers and artists dedicated to exploring the relationship between species, machines and organs. With an eye on nature and analyzing the different senses found on living beings, our purpose is the creation of new sense organs to expand human capabilities. Our team is focused on translating the suggested idea to a hardware/software device, that will not only process data but also transmit it to the body through the brain. In the course of becoming cyborg, different phases are found: the creation of the organ, the implantation of it and the acclimatization of the brain and body to the new sense. The brain is a plastic organ that can be moulded. Just like Neil Harbisson says “The brain is like a sculpture to be shaped”. By now, considerable results have been obtained. We will take a closer look at it by introducing the several members whose organs have been already implanted, how this has affected their life and way of interact with the physical world. We will, as well, explain the different senses and its design. Just for a quick view we will talk about: Neil Harbisson - Eyeborg. Color sense antenna. Moon Ribas - Seismic sense Manel Muñoz - Weather station Kai Landre - Cosmic rays In addition, we have the satisfaction of announcing that the CCC will be the first to know about the pioneering technology that we are developing to power the devices. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10312.html

Aug 23, 201927 min

Fast Global Internet Scanning - Challenges and new Approaches (camp2019)

Current search engines such as censys or shodan give everyone an insight into the global Internet. Unfortunately, they don't provide a comprehensive view of the Internet because you can't access the raw data. Consequently, you have to scan the Internet yourself. Anyone can perform a one-shot scan via Mass-Scan & Co. However, how to build an infrastructure for regular Internet scans that is not blocked after a short time by Intrussion Detection Systems and Spam/Blacklists is not easy. First we will talk about the right scan setup, infrastructure, scan strategies, and data enrichment. We will then take a look at the data and gain common and interesting insights into the structure of the Internet. Current search engines such as censys or shodan give everyone an insight into the global Internet. Unfortunately, they don't provide a comprehensive view of the Internet because you can't access the raw data. Consequently, you have to scan the Internet yourself. Anyone can perform a one-shot scan via Mass-Scan & Co. However, how to build an infrastructure for regular Internet scans that is not blocked after a short time by Intrussion Detection System and Spam/Blacklists is not easy. The following questions must be answered: Which scanning algorithms are used (centralized, distributed, BGP prefix hit lists)? How could you reduce scan traffic? How do I process the data in the long term (up to 600GB / scan)? With which further data do I enrich the scans for further analyses (BGP prefixes, Inetnum objects) ? How do I build the right server without a bottleneck and how do I connect it to the internet (rent a server or become a RIPE-Member/ your own ISP with a /22 IPv4 /32 IPv6 Block)? In the first half of the talk we will deal with these questions. In the second half of the lecture we will discuss real scan data. We will concentrate on the analysis of the network topology and distribution of BGP prefixes, whois blocks and network services of well-known autonomous systems on the Internet. As a further example, we will look at the network structure of a large well-known German hoster, which gives us a good overview of its internal organization of data centers and other services. Finally, we will look at some data and analysis from a security perspective. about this event: https://fahrplan.events.ccc.de/camp/2019/Fahrplan/events/10353.html

Aug 23, 201942 min

Climate breakdown – the bleak reality (camp2019)

Heat waves, wildfires and new movements like Fridays for Future and Extinction Rebellion have brought the climate crisis back into the news. However, meaningful political action is still not happening and the world is on track to three to four degrees of warming. Where are we heading and why did humanity fail so badly at tackling the problem? A look at the scientific reality of the climate crisis is dire. Sinking coastal cities with millions of inhabitants, dying coral reefs, and large uninhabitable areas are practically impossible to avoid by now. But that doesn’t even come close to capture the worst outlooks: A runaway climate change where feedback loops accelerate heating [1], without any option for humanity to do anything about it. The end result may very well be a planet largely uninhabitable for humans. Avoiding just the worst of these consequences requires unprecedented political action on a scale that’s not even part of the political discourse yet. The talk will give an overview of the troubling scientific facts. Furthermore I’ll provide some discussion why humanity failed so badly at doing anything about it. This includes undeserved optimism by traditional environmental organizations about international climate diplomacy and the Kyoto and Paris accords, a wrong understanding about relative versus absolute emission reductions and false hopes in technology fixes. With all that dire outlook, it’s important to realize that the difference between “business as usual” and ambitious changes is still huge. A new wave of climate doomsdayers that say it’s too late to do anything may be just as harmful as the climate deniers, because they share the wrong message of doing nothing. [1] https://www.pik-potsdam.de/news/press-releases/planet-at-risk-of-heading-towards-irreversible-201chothouse-earth201d-state?set_language=en about this event: http://talx.thm.cloud/thms/talk/FLXJRA/

Aug 23, 20191h 5m