Chaos Computer Club - archive feed

Nachdem der Verlag Heise in der C'T schon GnuPG für tot und unbrauchbar erklärt hat, wird nun der Abschied vom Passwort gefordert und FIDO2 als Nachfolger präsentiert. FIDO2 bietet endlich Schutz vor Phishing und identitätsdiebstahl. Was ist davon zu halten? Es gibt bereits seit vielen Jahren nutzbare und wirklich sichere Alternativen zu unsicheren Passworten; allerdings lässt die Nutzung und Verb...

... ein gesellschaftliches und solidarisches Patch TL;DR Was können wir in einer Umgebung der Anpassung tun, um kritisches Bewusstsein zu fördern und die Abhängigkeit von Expert*innen zu mindern? Ausgangslage: Staatliche und Konzerninteressen prägen längst die Art, wie wir Technik nutzen und Medien konsumieren. Es wird uns leicht gemacht, uns mit den vorherrschenden Verhältnissen zu arrangieren. S...

This talk will share lessons that OSM and OSMF members can learn about the multi-years collective dynamics around OpenStreetMap which unfold in French-speaking southern countries of Africa and the Caribbean with the view of identifying paths for local OSM grassroots groups evolution towards a formal OSMF local chapters. It has been some years that OSM and OMSF members have been discussing the topi...

OSM Teams is a software framework for building team-based applications on top of OpenStreetMap. We will present how the software is built, why we think it's a good tool for communities, and how you can integrate your application with the framework. OpenStreetMap is first and foremost a community platform. A lot of OSM mapping emerges from grassroots collaborations, from local neighborhood communit...

The PostgreSQL database with the PostGIS extension is an important instrument in the toolbox of anybody working with OSM data. This talks explains the basics of working with the SQL database and how it handles geographic data. We'll look at getting OSM data in and out of such a database and what we can do with the data once it is in there. The PostgreSQL database with the PostGIS extension has alw...

Mapathons and Imports represent a Quality Challenge for the OSM community. This presentation focuses on Buildings. It presents Metrics and show progress of tools development to monitor and correct Quality problems in the OSM database or before importing. Mapathons and Building import projects represent major OSM Quality problems to monitor. Potentiel 3.0 and OSM-RDC started a project in 2018 to mo...

In this research, the OSM-Notes feature is mainly viewed as data that can be examined speedily from OSM data globally in terms of the content of the notes posted and the location of users. Data from volunteered geographic information (VGI) and public surveying are essentially different; while a great quality and quantity of data is available for VGIs, discussions about data quality are scarce (Sen...

OpenStreetMap's processes are carefully designed to minimize the privacy footprint of the mappers. Nonetheless, the principle that any edit shall be attributable means that some data is still recorded. An overview is given which data is recorded at all and which of it gets available to whom. OpenStreetMap surveys data about places, not about persons. Thus privacy sensitive data in the geodata is v...

More than 17 million edits globally have been made by paid contributors in the last five years. We look at the long history of corporate involvement in OSM and then dig into the data to quantify the impact this latest evolution of corporate involvement is having on the map and explore the interactions between paid and volunteer mappers. OpenStreetMap (OSM) is both a map and the active community of...

In this talk, large scale data production events in OSM are identified, characterized, and their spatio-temporal patterns and impacts are analyzed. The results show that remote mapping events produce more data today than bulk imports, yet that the former type has a more lasting impact on representation, hence pointing towards possible steps for maximizing the positive influences of events of diffe...

The project created from the cooperation between GeoLab (Universidad de Antioquia), and SiCLas (group of cyclists), both present in Aburrá Valley (Colombia), proposes a collaborative mapping by bicycle users as an urban transport mode. The data generation from existing cycling infrastructure will allow an improvement of OSM database, and an optimization in route calculation. In addition, the incor...

We are working to map all the solar panels (photovoltaic, "PV") in the world. Why? The data can be used directly to reduce carbon emissions from power generation. We will share our experiences of surveying, aerial mapping and machine vision to find all the hundreds of thousands of solar panels in our countries. Together with a small group called OpenClimateFix, we are working to map all the solar...

Indexing OSM data in your PostGIS database for fast spatial queires is not as straight foreward as one migth hope. And with each release of PostgreSQL / PostGIS there are more options to try out. This talk will explain different spatial indexing concepts and best practices in PostGIS and present some benchmarking results. When working with OpenStreetMap data in a database you learn pretty soon tha...

In this talk we try give an overview on how to use GraphHopper to provide a more flexible routing (based on weather information, road class, road width, ...) and how this could be also used for visualization purposes or data analysis. In its first version 0.1 the open source GraphHopper routing engine was able to store just the distance and the car speed and access for every road. Since then many...

Hacker tüfteln mit verspielter Hingabe. Hacker machen Angst, indem sie ihr Wissen für Machtspielchen oder zur Machtdemonstration nutzen. Hacker mit entsprechenden ethisch moralischen Grundmoralvorstellungen klären auf, damit kein Raum für Machtspielchen bleibt. Mit diesem Vortrag möchten wir speziell bei funkbasierten Zutrittssystem aufklären. Wir zeigen anhand eines Beispiels im 900MHz-Band Signa...

Satellite imagery has materially enhanced OpenStreetMap and improved editing and validation. In this talk we will talk about recent enhancements we've made to get even more information from satellite imagery. DigitalGlobe, now known as Maxar Technologies, has been providing two sources of imagery directly for OpenStreetMap (OSM) users for tracing and validating. Over the past couple years, we’ve r...

Reichen für die vielbeschworene "Datensouveränität" ein hohes Maß an Compliance und IT-Sicherheit aus, oder müssen wir neu denken? Interoperabilität, Portabilität, neue Verfügungsrechte, "Daten für alle" oder einfach eine strikte Durchsetzung des Datenschutzrechts - was ist am besten geeignet, den Bürgerinnen und Bürgern wieder mehr Hoheit über die sei betreffenden Daten zu verschaffen? Reichen fü...

Lightning Talks Lightning Talks about this event: https://pretalx.com/sotm2019/talk/KMP9X7/

This talk presents an initial inquiry into the relations between the Academic and Mapping communities in OpenStreetMap, based on a review of recent publications, interviews of colleagues, and self-reflection of the authors. By this, we aim to understand how and when research-community interactions come to be, what is their nature, and how can these be improved and made more productive for both sid...

JOSM is almost as old as OSM but few people really know what it takes to maintain your preferred editor. We'll present the development model of JOSM and who's part of its active community: developers, translators, testers, plugin authors, end users, sponsors, etc. We'll talk about the project difficulties, the major achievements made in the past years, what work is currently in progress and what w...

Abschlussveranstaltung der Datenspuren 2019 about this event: https://datenspuren.de/2019/fahrplan/events/10469.html

Travelers have high expectations of their route planners. We explore how preprocessing techniques applied to Linked Open Data derived from OSM (Routable Tiles) can provide a satisfying performance for client-side route planning. Travelers have higher expectations than current route planning providers can fulfill, yet new solutions struggle to break through. Matching user experience from existing a...

Wie ist der Stand der IT-Sicherheit bei Verbraucherprodukten? Wie könnten europaweit verbindliche Vorgaben zur IT-Sicherheit gemacht werden? Wie lässt sich die IT-Sicherheit eines Produkts transparenter machen? Informatikerin Anja Hirschel und der Europaabgeordnete Patrick Breyer schlagen ein Bewertungssystem zur IT-Sicherheit von Produkten vor und haben einen entsprechenden Antrag eingereicht. Wi...

This talk discusses different ways how to improve the search experience for domain-specific maps. No map comes without a facility to search for places. As a result quite a few open-source geocoders using OpenStreetMap data have been developed and have matured in the last years. Nominatim, Pelias, Photon, Carmen, there are many to choose from. They all have in common that they offer a general purpo...

This study examines OpenStreetMap data quality at different stages of a participatory mapping process developed for understanding inequalities in healthcare access of informal urban residents in Africa and Asia. Recent studies have examined quality intrinsically and extrinsically. However, in both cases, the data production processes are often not completely transparent to researchers, therefore l...