Chaos Computer Club - archive feed

about this event: https://c3voc.de

about this event: http://fahrplan.2019.hackumenta.de/hackumenta/talk/SGTP8Y/

Eine oder mehrere Fremdsprachen zu beherrschen ist chic, aber der Weg dahin in der Regel steinig: komplizierte Grammatikregeln, unregelmäßige Verben und zahlreiche Ausnahmen machen das Leben schwer. Und dann gerät man nach Jahren des Lernens an einen "Native Speaker", der so schnell oder in einem Dialekt spricht, dass man kaum ein Wort versteht. Es ginge aber auch anders. Vor gut 130 Jahren hat sich ein polnischer Augenarzt mit Esperanto eine neue Sprache ausgedacht, die für alle Menschen leicht zu erlernen ist, keine Ausnahmen kennt, und - weil jeder sie neu lernen muss - möglich macht, dass alle Gesprächspartner auf gleicher Augenhöhe miteinander kommunizieren. Diese eigentlich geniale und gleichzeitig utopische Idee hat sich offensichtlich bis heute nicht durchgesetzt, aber Esperanto ist unter den sog. Plansprachen diejenige, welche die größte Verbreitung und Aufmerksamkeit gefunden hat. Schon deshalb lohnt ein Blick auf die Entstehung, Geschichte und den aktuellen Status der Sprache. Es werden auch wichtige Ressourcen zu Esperanto im Internet gezeigt. Und weil die Sprache so einfach ist, wird in diesem Talk gleich ein Mini-Sprachkurs mitgeliefert. about this event: http://fahrplan.2019.hackumenta.de/hackumenta/talk/YTTKPG/

about this event: http://fahrplan.2019.hackumenta.de/hackumenta/talk/GYHTU8/

Wie ein Template und sein Skript den Aufwand eines Wechsels von Entwicklung zu Produktion für Dockerprojekte minimiert. Wer seine Website und einen Stapel Tools, wie z. B. CodiMD, Nextcloud und Traefik, immer schon mal als einfache zu verwaltende und dynamische Containerstapel auf seinem Server laufen lassen wollte, ist bei diesem Talk genau richtig. Nachdem kurz die grundlegende Idee hinter Microservices wiederholt und damit das Publikum auf denselben Stand gebracht wurde, zeigt dieser Talk das Problem der Separierung von Entwicklung und Produktion im sonst doch klar definierten, containerisierten Umfeld auf. Nach Erkennen und Analyse des Problems wird eine mögliche Lösung vorgestellt: DargStack. Ein Template für Projekte, das die Entwicklungskonfiguration voranstellt und die Produktionskonfiguration davon ableitet. Und weil Docker stacks so einfach sind, wird auch der nächste Schritt - das Deployment - mit DargStack anhand der persönlichen Zusammenstellung von Webservices des Vortragenden gezeigt. about this event: http://fahrplan.2019.hackumenta.de/hackumenta/talk/WFFVUU/

Dieses Jahr habe ich mich in ein neues Abenteuer begeben und für den Konstanzer Gemeinderat kandidiert. In diesem Talk will ich ein paar Fragen beantworten: Warum habe ich kandidiert? Was habe ich als junge Frau in der Politik erlebt? Was hat Kommunalpolitik mit Klimaschutz zu tun? Und warum brauchen wir mehr junge Menschen in politischen Ämtern? about this event: https://projects.alpaka.space/jhber19/talk/VHUQAN/

Mit dem Prototype Fund fördern wir Public Interest Tech in Deutschland. Wir unterstützen Talente dabei, sich zu professionalisieren. Wir wollen eine Basis für neue Ideen und mehr Experimentierfreudigkeit in der Open-Source-Entwicklung schaffen. Gefördert werden selbständige Software-Entwickler*innen und kleine Teams, die erste, innovative Ideen umsetzen wollen. Wir unterstützen die Projekte dabei finanziell und ideell mit Weiterbildungen, Zugang zu Netzwerken und Coachings. Hier wird das Programm mit den verbundenen Teilnahmebedingungen kurz erläutert und anhand ein paar der erfolgreichsten Projekte gezeigt, wie breit und erfolgreich wir bis jetzt schon fördern. about this event: https://projects.alpaka.space/jhber19/talk/TNUYRZ/

Offene Daten, was ist das eigentlich? Wo finde ich offene Daten und warum sind sie wichtig überhautp wichtig? Und was hat Umwelt damit zu tun? Dieser Kurzvortrag ist ein Einstieg in das Thema und die Vielfältigkeit von Umweltdaten und ihre Anwendungsbereiche. about this event: https://projects.alpaka.space/jhber19/talk/CEVBRW/

Viele Software-Projekte haben bittere Tränen bei dem Versuch vergossen, mit mehr als einer Entwicklerin auf einer gemeinsamen Codebasis zu arbeiten. Man überschreibt sich gegenseitig Code, löscht Code unwiederbringlich oder tut sonstige Dinge, wegen denen hinterher das halbe Team nicht mehr miteinander spricht. Um also unnötiges Blutvergießen bei jugendHackt zu vermeiden, gibt dieser Talk eine Einführung in das Versionskontrollsystem git, das genau diese Probleme bei der gemeinsamen Software-Entwicklung vermeiden hilft. about this event: https://projects.alpaka.space/jhber19/talk/8ENVTZ/

Die Barrierefreiheit ist ein wichtiger Aspekt in der Software-Entwicklung, der leider von vielen Entwicklern wenig beachtet wird. Die Gründe dafür scheinen vielfältig; aber was ist dran an den Vorurteilen rund um Accessibility? Wer profitiert wirklich davon, und wie mache ich meine Programme barrierefrei? Wie verwenden Menschen mit den unterschiedlichsten Einschränkungen ihre Computer und Smartphones? Alle diese Fragen wollen einfach und Anfäger*innenfreundlich beantwortet werden, um die Erfahrung für alle potentiellen User*innen zu verbessern! about this event: https://projects.alpaka.space/jhber19/talk/TGSDSD/

Renewable energy and its types electrical production in germany and turkey renewable enery ratios among whole and a moment of respect (freiburg) about this event: https://projects.alpaka.space/jhber19/talk/MGTTL7/

"Hier geht es um Klimakrise, Netflix und nigelnagelneue Smartphones - Wie Das alles zusammenhängt und welche Rolle wir Hackenden und Codenden dabei spielen." about this event: https://projects.alpaka.space/jhber19/talk/S78JLH/

--- about this event: https://projects.alpaka.space/jhber19/talk/JPBW79/

Beim Amateurfunk geht es grundlegen darum, sich über eigene Funkgeräte mit bekannten und fremden Menschen auf der ganzen Welt auszutauschen. Dieses Hobby ist aber noch deutlich vielfältiger. Dazu gehört ein besonderer Amateurfunksport, Wettbewerbe, Not- und Katastrophenfunk oder der Selbstbau von Funkgeräten und Antennen. Auch der Funkkontakt an sich ist immer wieder spannend. So kann man bis nach Neuseeland, mit der Internationalen Raumstation, mit Satelliten oder auch mit dem Mond funken. Manche Funkamateure wandern auf Berge oder fahren auf unbewohnte Inseln um von dort funken zu können. about this event: https://projects.alpaka.space/jhber19/talk/9URGC7/

Datenvisualisierung hat verschiedene Aufgaben: Analysieren. Informieren. Aufrütteln. Überzeugen. Oder einfach nur schön sein. Mit vielen verschiedenenen Beispielen von Klimavisualisierungen werde ich zeigen, wie man Umweltdaten für welche Ziele visualisieren kann. about this event: https://projects.alpaka.space/jhber19/talk/9YDCNU/

Behörden haben einen großen Schatz an Datensätzen, welche viel zu selten öffentlich sind. Es gibt zwei Gesetze, die es möglich machen an Behördeninformation und im Besonderen Umweltinformationen heran zu kommen. Ich möchte euch die Plattform FragDenStaat vorstellen, über die es einfach möglich ist solche Anfragen zu stellen und an Beispielen erzählen, was alles möglich ist und warum du das auch nutzen solltest. about this event: https://projects.alpaka.space/jhber19/talk/FNUDLW/

--- about this event: https://projects.alpaka.space/jhber19/talk/CU3N8S/

Der Talk klärt folgende Fragen und beinhaltet eine kurze Diskussions- und Fragenrunde: Was tragen die Entwickler am Klimawandel bei und was können sie tun, um dies zu verringern? Was ist Developers4Future? Kann ich mit meinen Kentnnissen/Fähigkeiten etwas für FFF und Together For Future tun? about this event: https://projects.alpaka.space/jhber19/talk/XBQ3Z8/

Kurzer Überblick über neue Entwicklungen, "erfolgreiche" Testprojekte und was wir dagegen tun können about this event: http://fahrplan.2019.hackumenta.de/hackumenta/talk/3DK3B3/

Mehr Geschmack durch die Maillard-Reaktion, der Stoffwechselzyklus der Hefe, Hege und Pflege von Gärgasen - alles nur für den guten Geschmack, die optimali Crispizität und olfaktorische Freuden. Es wird eine Geschmacksprobe geben. about this event: http://fahrplan.2019.hackumenta.de/hackumenta/talk/TNJRA8/

In diesem Talk stelle ich euch meine Zeichenmaschine vor, die mit ein paar Zeilen Code auf einem Arduino, Steppermotoren und ein bisschen Mechanik generative Muster malt. Nach einer Vorstellung der Maschine werden wir die natürlich auch direkt anschließen! Wer nicht zum Talk nicht kommen kann, findet die Maschine (und mich) in Barnard, wo sich jeder ein eigenes Bild zeichnen lassen kann. about this event: http://fahrplan.2019.hackumenta.de/hackumenta/talk/UNFRCN/

Keynote about this event: https://projects.alpaka.space/jhber19/talk/LTKJ8W/

Kann man empirischen Studien trauen oder nicht? Wie kann ich gute Studien von schlechten unterscheiden? Und was mache ich, wenn es zu einem Thema Studien mit gegensätzlichen Befunden gibt? Der Vortrag soll helfen, Antworten auf diese Fragen zu finden und empirische Studien besser zu verstehen. Empirischen Studien begegnet man nicht nur in Vorlesungen und Laboren, auch in den Nachrichten und in Diskussionen werden sie zitiert und oft als unumstößliche Wahrheit dargestellt. Andererseits gibt es ein großes Misstrauen gegenüber diesen Studien. Den Satz „Traue keiner Statistik die du nicht selbst gefälscht hast“ hat wohl jeder schon gehört und beim Congress im letzten Jahr hieß es mit Verweis auf psychologische und sozialwissenschaftliche Methoden „Science is broken“. Aber entspricht das wirklich der Wahrheit? Der Vortrag beschäftigt sich mit der Frage, was die Denkweise hinter empirischen Studien ist und wie man sie besser verstehen kann. Dabei sollen sowohl Grundlagen wie Wahrscheinlichkeiten, verschiedene statistische Testverfahren und Metaanlysen als auch Probleme wie p-Hacking und die Replikationskrise angesprochen werden. Ziel des Vortrags ist es, den Zuhörer*innen einen Eindruck davon zu vermitteln, was empirische Studien aussagen können und was nicht. Dabei liegt besonderes Augenmerk auf der Frage, ob und welchen empirischen Studien man trauen kann. Man benötigt keine Vorkenntnisse zum verfolgen des Vortrages. Als Beispiele werden aktuelle und klassische Studien aus der Psychologie benutzt. about this event: http://fahrplan.2019.hackumenta.de/hackumenta/talk/M8X9PD/

Eine grundlegende Einführung in die Programmierung paralleler Tasks auf Grafikkarten von NVIDIA. Was an Grafikkarten cool ist? Wer über das Alter hinaus ist, in dem man beim Gedanken an Grafikkarten einzig an Spiele und möglichst hohe FPS denkt, weiß sicherlich, dass Grafikkarten für etliche weitere Zwecke zum Einsatz kommen. Hier produzieren sie Cryptowährungen in Mining-Farmen, dort errechnen sie Hashes für alle möglichen Zeichenkombinationen, um auf Passwörter rückschließen zu können. Doch wie funktioniert das eigentlich? Wie kann ich meine Grafikkarte programmieren? Wieso nutzen die Programme auf meinem Rechner nicht alle die Grafikkarte, wenn sie doch von einem so beeindruckenden Leistungsplus profitieren könnten? Und wieso möchte ich bei NVIDIA-Grafikkarten eigentlich immer die mit möglichst vielen CUDA-Cores kaufen, obwohl ich keine Ahnung habe, was die tun. Dieser Talk beleuchtet anhand von NVIDIAs CUDA die genannten Fragestellungen, weist auf architekturbedingt Beachtenswertes hin und vermittelt, dass man seine CPU nicht wegwerfen sollte. Gekrönt wird der Vortrag von einem Blick auf Optimierungsstrategien, die in einem echten Codebeispiel Anwendung finden. about this event: http://fahrplan.2019.hackumenta.de/hackumenta/talk/FK73M3/

The opening of the hackumenta in Kassel, Germany will involve two different phases. First, the "hack-lab", for which the hack will be conducted, will be located at the Kassel University of Applied Sciences. Here hackers will get their first stab at developing their software and testing it with a real life example. Secondly, they will be able to conduct "open" experiments using the platform. This will allow the hackers to connect to the public to make their software even more open and free. Hackumenta will have up to 50,000 users The project is the brainchild of Andreas Krawitz and his team from the "Hackumenta" company. The company is a subsidiary of the German Software House of Technology, whose board members include Jurgen Neugebauer, chief executive of Google, Michael Schroeter, head of IBM Research Germany, Dr Ulrich Schäuble, chairman of the German Bundesministerium for Economic Affairs, Erich Honecker and the Chancellor of Bavaria, Horst Seehofer. about this event: http://fahrplan.2019.hackumenta.de/hackumenta/talk/HNFPVC/

about this event: https://c3voc.de

about this event: https://c3voc.de

about this event: https://c3voc.de

about this event: https://c3voc.de

about this event: https://c3voc.de

Ein kurzweiliger Vortrag über die Möglichkeiten von Webscraping mit Puppeteer about this event: https://c3voc.de

Der Vortrag erzählt die Geschichte von "media.ccc.de", dem Videoportal des Chaos Computer Clubs. Vor 12 Jahren waren erstmals die Videos von 'ftp.ccc.de' direkt im Browser sichtbar. Damals wusste noch niemand wozu, schließlich konnte man die Dateien "einfach" per FTP herunterladen. Zuerst wurden die Videos noch als FLV mit dem Flash-Player ausgespielt, doch irgendwann konnte auch der letzte relevante Browser HTML5. Heute unterstützt media Tonspuren in verschiedenen Sprachen, Untertitel und vieles mehr. Erzählt wird die Evolution der Architektur, von 'webgen' und DNS Round Robin bis zur Rails Anwendung mit HTTP Redirector. Die meisten Videos werden vom CCC Video Operation Center auf diversen Veranstaltungen aufgezeichnet und anschließend auf media publiziert. Wir reden über diese Verarbeitungskette und die API, das CDN Backend, sowie das Rails Frontend 'voctoweb'. Doch zur Geschichte von media gehören auch immer wieder kleine Anekdoten, wie der gescheiterte Versuch Torrents mit Web-Seeds anzubieten, oder die gesperrten Videos in der Apple-TV App. about this event: https://c3voc.de

Fabi berichtet von der neuen Stickmaschine im nbsp des Chaotikum. Ein Vortrag im Rahmen der Fünf-Minuten-Termine. Die Idee ist einfach: An jedem vierten Mittwoch des Monats nutzen wir das volle Haus zum Open Space / Chaostreff und jede Person, die möchte, kann kurz vorstellen, was auch immer ihr vorschwebt. about this event: https://chaotikum.org/blog/2019/09/24/5-min-termine9/

Leo berichtet über Operationsverstärker. Ein Vortrag im Rahmen der Fünf-Minuten-Termine. Die Idee ist einfach: An jedem vierten Mittwoch des Monats nutzen wir das volle Haus zum Open Space / Chaostreff und jede Person, die möchte, kann kurz vorstellen, was auch immer ihr vorschwebt. about this event: https://chaotikum.org/blog/2019/09/24/5-min-termine9/

Öffentliche Haushalte sind der in Zahlen gegossene Kern der Politik. Haushalte sind allerdings komplex und ihre bürokratische Darstellung ist schwer zu verstehen. In diesem Talk präsentiert Christian seine Anwendung “Unsere Gelder” die helfen soll, Haushaltsdaten zu verstehen. Aktuell kann man in den Medien viel über den Lübecker und den Bundeshaushalt lesen. Doch wie einfach ist es einen Haushalt zu verstehen? Bei diesem Talk wird das Projekt “unsere Gelder” mit anschaulicheren Visualisierungen und Vergleichsmöglichkeiten vorgestellt. Das Ziel ist es, mehr Bürgern zu ermöglichen sich zu informieren und sich zu beteiligen. Über einen Katalog sollen die Daten der Haushalte gesammelt werden um auf https://unsere-gelder.de dargestellt zu werden. Das Projekt ist Open Source und die erzeugten Daten werden als Open Data jedem zur Verfügung gestellt. about this event: https://chaotikum.org/blog/2019/09/16/unseregeldertalk/

The OpenStreetMap provides probably the most comprehensive digital path network for pedestrians, which had been largely unused in its actual depth of detail so far. Based on findings from the TERRAIN project, this talk will go into detail how this network can be used for roadside-aware pedestrian navigation efficiently, and what challenges and mappings problems occurred. Furthermore, specific needs of various person groups will also have to be considered facing variable data quality. People primarily move on sidewalks, but this is hardly taken into account in generally available routing solutions. The OpenStreetMap provides probably the most comprehensive digital path network for pedestrians, which had been largely unused in its actual depth of detail so far. Through an efficient and transparent topological extension of the path network, more accurate routes for pedestrians and other means of transportation can now be determined, revealing hitherto unnoticed mapping problems and an undesirable previous focus on automotive mobility. As part of the TERRAIN project, an exemplary publicly available navigation system for blind persons was developed that demonstrates the special challenges of human locomotion based on the OpenStreetMap. Challenges and robust solutions concerning data quality, micro-mapping and transition areas, regional OSM semantics versus mapper interpretations, and path bundling are presented. A large part of the footpaths in the OpenStreetMap are listed in the form of annotations as sidewalks. This well-proven procedure enables a low-maintenance, robust and high coverage of the footpath network. However, a presentation with many paths inevitably leads to contradictions due to path bundling, which requires a more elaborate micro mapping, which is often not noticed by mappers up to now, and can now be shown clearly. But also regional micro mapping can lead to unexpected complications in addition to the increased effort, since a multitude of connection problems can occur which have to be considered. In addition, there are a large number of requirement profiles for children, adults, the disabled or the elderly who travel on foot, in wheelchairs or on scooters. A deeper examination of the map data enables a finer specialisation in different areas of application, which also uncovers and challenges previously unused data treasures and requires special handling in the software. about this event: https://pretalx.com/sotm2019/talk/ARMCT7/

Osmose-QA is a Quality Assurance tool pointing issues on map, but also able to compare external data set to OpenStreetMap. First part is about the new support of MapCSS rules in Osmose-QA and the opportunity to share rules with JOSM and other tools. Second part is on integration of external data from Mapillary photography objects extracted by AI and from OpenData. It is also on the challenge to deals with lots of OpenData. At the beginning, Osmose-QA is a Quality Assurance tool pointing issues on map, but also able to compare external data set to OpenStreetMap. First talk part is about the new support of MapCSS rules in Osmose-QA. MapCSS language was primarily designed as way to style map objects, it look like the web styling language CSS. The base of MapCSS is to use selectors to filter objects. JOSM already use it for map styling and validator. This new implementation of MapCSS in Osmose-QA allows to write rules more easily. It also allow to reuse JOSM validator rules set. Next step would be to run Osmose rules in JOSM. It’s a great opportunity to share rules across tools and projects. But come the question on how to share and manage this rules while considering tools particularities. Second talk part is on external data comparison (aka conflation) with OpenStreetMap. It permits to point issues and evaluate the coverage, lastly it allows fixing and integration into OpenStreetMap. The more we wait, the more there is OpenData sets available. How Osmose-QA can try to addresses this issue of already too many OpenData set available. Beside OpenData from authorities we also have street objects extracted by Mapillary AI from street photography. Finally, what about the limit of the current model and how we may go further. about this event: https://pretalx.com/sotm2019/talk/JJKH8H/

OpenMapTiles is an open-source set of tools for processing OpenStreetMap data into vector maps, which can be produced in various coordinate systems. OpenMapTiles is an open-source set of tools for processing OpenStreetMap data into zoomable and web-compatible vector tiles, which are ready to use in OpenLayers, Mapbox GL, Leaflet, QGIS as well as mobile applications. This talk gives an overview of the OpenMapTiles tools to produce vector tiles in coordinate systems other than Mercator while keeping all the features, such as interactivity to create powerful region-specific applications. Today’s de-facto global standard is a Spherical Mercator projection because it preserves shape and angles. The entire world looks like a square, which makes it easy to work with on a computer. However, such a transformation causes several issues like distortion of sizes where places around the equator are visually smaller than those near poles. That’s why new global coordinate systems were developed. There are also many local coordinate systems with a long tradition. They perfectly fit the need to display a particular country/area in the most acceptable way. They are heavily used, especially by governments. OpenMapTiles can serve as a base map for displaying data in a different coordinate system or for view/print purposes. There is also a hosting service based on OpenMapTiles called MapTiler Cloud, which offers the same ability to be displayed in a different coordinate system than Mercator. about this event: https://pretalx.com/sotm2019/talk/RYPLFZ/

Norway has deployed OSM on a national level for journey planning and is taking initiatives to expand the user, and usage of OSM in Norway and abroad. Entur’s mission is to enable and increase the use of public transport in Norway. Entur operates the national registry for all public transport in Norway, collecting data from 60 public transportation operators. The registry contains data about 21,000 daily departures on 3,000 routes. This data is open and free of use for app and service developers. We would very much like to present our success story of using OSM data as the foundation for all interchanges and routing in our national journey planner (used in the app: Entur, and http://en-tur.no), and the surprisingly easy challenges we faced due to the quality of OSM data, and the way we solved the large scale challenges, such as missing roads around the country. Why we are going to continue to build on the usage of OSM, OpenTripPlanner and other open source platforms on a European wide base to create an ever-improving public transport information distribution. We are actively engaging with the Norwegian community to build relations, improve quality and mapping methods, even arranging beer meetups. We are of course providing all our data openly, making it easy for OSM to make good use of for example our national stop place database, or for our NeTEx based time table data to be used in innovative solutions. about this event: https://pretalx.com/sotm2019/talk/CXVMJ8/

In early 2019, Open Data Manchester teamed up with Stockport council, Disability Stockport and Age UK Stockport to crowdsource data around mobility and accessibility in the town centre. This talk will cover the mapping methodology, findings, difficulties and solutions, as well as suggesting ways in which we can better map for these communities, making the data collected for OSM more inclusive and accessible for all. In early 2019, Open Data Manchester partnered with Stockport Council on a project called ‘Mapping Mobility Stockport’, funded through the ODI Geospatial Fund. Working with Age UK and Disability Stockport, the project crowdsourced data about accessibility issues in Stockport, drawing on the lived experiences of people with mobility impairments to supplement data already available to the council. The municipal environment often includes barriers that exclude people with restricted mobility. These barriers may be the result of natural topography, historic planning, deterioration of the urban environment or planned and unplanned maintenance. Some of the barriers may not be known to the local authority. People with mobility impairments are on the frontline when it comes to negotiating these obstacles, and often have their own knowledge and strategies in negotiating and circumventing them. This is a resource that could be invaluable in helping others who face similar challenges, as well as helping local authorities identify where interventions need to be made. One of the aims of Mapping Mobility Stockport was to begin to map and find ways to continue to share these strategies. Using our Joy Diversion format as a basis, Open Data Manchester co-designed and ran a series of workshops with Age UK and Disability Stockport, which brought together different techniques and mobility strategies contained within the local community to enable people of all abilities to explore and map their environment. We used large, hi-resolution maps of Stockport to scribble on and sketch out routes, before taking to the streets to document, photograph and map the kind of things that these communities come up against on a daily basis. This information was then added to Stockport Council’s mapping system and Open Street Map, helping create a mobility map of Stockport. This talk will explore how we collected this data, sharing some of the findings and insights from the project, such as how what is useful for one disability can be problematic for another (such as tactile paving, which is useful for those with visual impairments but can be problematic for a wheelchair user). The talk will also explore the difficulties that arose out of this when categorising and tagging these features, and question whether more needs to be done in terms of mapping the streets and sidewalk. about this event: https://pretalx.com/sotm2019/talk/9FQVUT/

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

Have you ever been lost inside a gigantic railway station? SNCF, the french railway company, is developing a pedestrian routing and navigation service to help travelers find their way inside and around railway stations. This talk exposes the challenges and how they have been addressed to provide a robust solution that can handle the great variety of data as well as routing through open spaces. SNCF, the french railway company, has been using OpenStreetMap to map railway stations for years. Since 2016, travelers can explore all 380 railway stations of the Greater Paris area through interactive maps deployed on their web site and on a mobile app. Browsing a map is good, but not good enough when you are lost inside a complex, multilevel, indoor (and/or outdoor) environment. It gets worse for someone in a wheelchair, elderly people, or anyone coming back from a family trip with more luggage than your hands could carry. What if we could bring pedestrian routing and navigation services to help travelers find their way inside and around railway stations? Could we do it using OSM data? This is the challenge SNCF has been trying to tackle for the past few months. Together with Jawg Maps and Carto’Cité, they held a detailed mapping campaign on 83 stations and developed a dedicated routing engine. This engine can seamlessly navigate indoors and outdoors, and achieves routing through open spaces such as pedestrian areas and station halls. This talk exposes the challenges we faced. It focuses on the data structure and the algorithmic strategies that have been defined to provide a robust navigation service, and its ability to handle the great diversity of railway stations. The talk also discusses how some parts of the data model originally designed for road navigation could be used for pedestrian routing – with some minor tweaks. If you thought mapping stairs was trivial, you would be surprised… about this event: https://pretalx.com/sotm2019/talk/AT9YPK/

As one of the outreach activities in Japan, OpenDatathon which holds mapping party and Wikipedia editing event simultaneously, are regularly held. As a member of an Organizer group, I will introduce OpenDatathon case studies and consider their potential. In Japan, many OpenDatathon are held by various operators. It does the mapping party and editing of Wikipedia, other OpenData editing as one event. This contributes to the increase in opportunities to learn OpenData, the exchange of people involved in OpenData, and the increase of contributors. As a member of the group that organizes OpenDatathon, I will explain the purpose, effect, and spread of this initiative. The purpose of OpenDatathon's activities is different for each organizing group. Among the purposes, cases aimed at local information distribution are worth noting. It edits information on OSM and Wikipedia and uses it for the development of the local community. Because Civic Tech communities and local government organizations are often interested in it. For example, the library is collecting material about the history of the area. Writing on Wikipedia using them is important to them. The number of OpenDatathon hosted by the library is increasing. We also frequently support events organized by other organizations. That way, they can manage the event without having direct contact with OSM and Wikipedia experts. In addition, it is possible for people of various motivations to participate by incorporating the fun of walking around town. In order to edit OSM and Wikipedia, We are looking for historical or important topics in the local area. In addition, we may hold multiple events as a series of historical themes. We are planning a story in mapping, and creating a motivation for people to participate by incorporating a specific feature. As our future challenge, not only disseminate local information by themselves, they will organize hackathon by using the OSM geospatial database and the Wikipedia document data. We want to increase activities. The code and data are linked in an area-oriented. about this event: https://pretalx.com/sotm2019/talk/LBREW8/

In many regions of the world, a population’s access to essential services is unduly constrained by a lack of proper infrastructure. By performing accessibility analysis using OSM data, we can understand how route infrastructure impacts access to essential services and use that information to inform an intervention. This talk explores accessibility analysis performed to understand the impact of footbridge construction in eSwatini and introduces a python framework enabling users to perform similar analysis. Bridges over rivers are fundamental pieces of human infrastructure which enable safe crossings for the populations who use them. However, many rural regions of the world lack these critical bridges, and as a result, access to essential services is restricted for millions of people. In pursuit of tackling poverty caused by rural isolation, we have begun experimenting using remote analysis techniques to quantify bridge need and impact. To these ends, accessibility analyses using OSM and other data have proven to be extremely valuable. By comparing a population’s baseline accessibility to its access in scenarios such as a flood or post bridge construction, one can better understand the transportation dynamics of a region and even estimate the number of people that would be impacted with a bridge construction, for example. During the course of running various accessibility models, a python framework tebetebe was built around OSRM [Open Source Routing Machine] which simplifies the process of running different scenarios. This framework is built with footbridges in mind but is generalized so it may be applied to other applications. This talk explores the accessibility analysis process, its caveats and results achieved in the Kingdom of eSwatini. Finally, a walkthrough of the python framework tebetebe is given so that other users may perform similar analyses. about this event: https://pretalx.com/sotm2019/talk/7FBMMM/

We map because we care to represent the world. Yet maps are never "true", they are shaped by their creators and their circumstances. Map-making is world-making: maps by different authors can give access to different worlds. So how can we make, share, and use maps that are created _by_ these worlds, and not just by a privileged few? How can vulnerable communities influence how they’re represented and affected by our maps? The popular view is that mapping the world is just an act of reflecting reality and reflecting nature. People rely on map-makers like us to show them the “true” spatial arrangement of the world. And yet, making a map also involves making assumptions, omissions, additions, and generalisations, and it feeds on our training, experiences, and personal perspectives as map-makers. A map is never really “true”, it is shaped by the hands of its creators, and it is always also a product of chance and its circumstances of making, sharing, and use. It can be said that map-making is world-making: maps shape our understanding of the world, and inform our actions in the world, and a map by a different author can give access to a different world. So how do we create a map of the world that is created _by_ the world, and not just by a privileged few? To fully appreciate the complexity of this challenge we need to extend our understanding of what counts as maps and mapping, and why. In order to understand our responsibility as map-makers, we need to become both _critical_ and _caring_ cartographers. This shift in perspectives and attitudes can help us understand better what can happen when our everyday mapping practice connects with real-world circumstances. It may also help us become more responsible as the volunteer workers of OSM. David and Martin will guide you through a careful and caring consideration of OSM based on personal experiences, and talk about the responsibilities we carry as we map and make the world during difficult times. For example, we may encounter circumstances where the OpenStreetMap approach to openness brings complications. Can the communities represented on the platform make decisions about how they’re being written about? Indigenous communities around the world regard their land as sacred and don’t want it to be mapped. Should we as a global community know when not to map? There are circumstances where the act of mapping itself can bring danger to the mapper. Do we have the right methods to assess such risks? What support can we offer those who take them? If we don’t, whose hand gets to shape the map instead? And what does all of this this mean for a do-ocracy, where decisions emerge slowly and can often contradict each other? Or to put it even more broadly, how can we diversify, democratise, denaturalise, and decolonise open mapping? Who cares, you ask? David and Martin have participated in the OSM ecosystem as mappers, researchers, and organisers, and have been involved in the Humanitarian OpenStreetMap Team and other global mapping initiatives. Based on their personal experiences they will introduce you to a careful and caring consideration of OpenStreetMap cartography, and talk about the responsibilities we carry as we map the world. They ask you to consider that maps are not _universal_, and that even in OpenStreetMap many different maps and mappings are possible. They propose that a better map may be a _pluriversal_ one, where many different perspectives can coexist. Can OpenStreetMap accommodate this? Which practices can help us produce maps that represent the world more equitably? More importantly, if we think that mapping can make a difference in a time of global precarity, inequalities, climate catastrophe, and mass extinction, then they ask _you_ to care. about this event: https://pretalx.com/sotm2019/talk/F9D8QG/

Lightning Talks Lightning Talks about this event: https://pretalx.com/sotm2019/talk/XQUHP3/

<p>'Public Transport Navigation using OpenStreetMap by OsmAnd'</p> <p>The presentation describes stages of developing and starting of new feature of OsmAnd app.</p> <p>OsmAnd is the first among the large OSM apps that developed public transport support. Now we continue to improve this function further, add new modes of transport, and experiment with the settings.</p> <p>How we came to the idea of ​​public transport? In the presentation, we will explain why we use the PTv2 scheme, why this option is preferred, and how it works. In addition, in our report, we will consider the future support of GTFS.</p> <p>During the work we faced various difficulties, so we will explain what these difficulties were and how we tried to build at least something. We will also cover how OSM users can help us, and whether it is possible and how long it will take to improve the data.</p> <p>Lastly, we will present our results and plans, namely, what was our most significant success and how we want to build an editor for public transport..</p> <p>We launched the function at the beginning of the year, and throughout the year we tested it, supplemented it with new conditions for building a route and tried to take into account all possible conditions for building routes. Although the data in the OSM have not proved to be always correct, everything can be fixed by the community.</p> about this event: https://pretalx.com/sotm2019/talk/NWW7GF/

OSM2World is an open-source renderer capable of creating rich 3D worlds from OpenStreetMap data. It is now available as a web application powered by WebGL. OpenStreetMap contains a wealth of data that can be used to build a 3D representation of our world. Some of it, such as buildings mapped using the [Simple 3D Buildings](https://wiki.openstreetmap.org/wiki/Simple_3D_Buildings) tagging convention, is intended primarily for 3D use cases. Other feature classes, such as roads and railways, urban infrastructure, or landuse information, aren't usually mapped with 3D in mind, but are nevertheless essential ingredients of a 3D world. In either case, unlocking the full potential of OSM data and converting it into a representation that's suitable for typical use cases in the domain of 3D rendering requires specialized software tools. [OSM2World](http://osm2world.org/) is one of these tools. Fully open source, it can be used to export 3D data for modelling software, animations, and games, as a library in other programs, and as an interactive map on the web. Until recently, however, the lack of a powerful 3d rendering solution for the web put constraints on the features available without a local installation of the software. Today, the WebGL standard allows real-time 3D rendering in all major browsers. A new web frontend for OSM2World builds on these capabilities to allow users to explore the world in 3D, based entirely on open data. This talk demonstrates the abilities of OSM2World and its new web frontend, showcases some impressive 3D mapping around the world, and briefly explores how the software works behind the scenes. about this event: https://pretalx.com/sotm2019/talk/V7QPGG/

Pic4Review now helps contributors to integrate open data properly in OpenStreetMap using street pictures validation. Discover the way it works and how this can help improve both OSM and open datasets. [Pic4Review](http://pic4review.pavie.info/) is a new editor to work on OpenStreetMap using open street-level pictures offered by Mapillary, OpenStreetCam and Wikimedia Commons. You can create thematic missions to work on a specific subject. The features are loaded in the tool, which automatically find available pictures around it, and offers a simple interface to answer questions and editing the features. At start, it was helping contributors adding details on existing objects, like accessibility of crossings, name of shops, levels of buildings... This offers a wide range of possibilities, and was already used by hundreds of contributors to edit around 100000 features worldwide. Now, it also offers to integrate open datasets into OpenStreetMap, the proper way. The complexity of integrating open data in OSM lies in the accuracy of these datasets : we should check if features are correctly located, and properly described. This can be done by surveying, or using freely available pictures of our streets. This is what Pic4Review offers to simplify : import your dataset, create a mission, and work in team to integrate the data which can be verified. This talk will present the problem of open data integration, the Pic4Review tool, and the process of using it for integrating open data. about this event: https://pretalx.com/sotm2019/talk/JGHWKY/

Closing Session Closing Session about this event: https://pretalx.com/sotm2019/talk/SWAGX7/