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PODCAST

Chaos Computer Club - recent events feed (high quality)

Der Chaos Computer Club ist die größte europäische Hackervereinigung, und seit über 25 Jahren Vermittler im Spannungsfeld technischer und sozialer Entwicklungen.

technology

All Episodes

00:28:19

Community-Driven Data: How Local Knowledge is...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/04

Effective urban solid waste management in African cities remains a critical challenge characterized by rapid urbanization, limited infrastructure, and insufficient data. Traditional top-down approaches often fail to address the unique, hyperlocal realities of waste generation, disposal behaviors, and service gaps. This presentation explores how OpenMap Development Tanzania (OMDTZ) with the funds from the World Bank, has implemented community-driven data collection approaches in Tanzania, Mozambique,

00:28:24

How to Complete Japan’s Building Mapping in One Year?...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/04

Since 2020, Japan’s Ministry of Land, Infrastructure, Transport and Tourism (MLIT) has led Project PLATEAU, releasing 3D city models in CityGML format. By 2025, over 236 municipalities have published building datasets compatible with the Open Database License (ODbL), suitable for integration into OpenStreetMap (OSM). Since 2022, OpenStreetMap Japan volunteers have imported PLATEAU’s Level of Detail 1 (LOD1) building data into OSM, completing imports for 13 cities as of May 2025. Despite these

00:25:46

Lightning Talks II (sotm2025)

Chaos Computer Club - recent events feed (high quality) ·

2025/10/04

## Utilizing OSM with QGIS _by Ariel Dome_ ## Open Mapping potential in Jakarta Metropolitan: Case Study of Mapillary Capture in Depok City _by Yabes Butar Butar_ ## People data tracing movement with GPS _by CJ Capuli_ ## All of five km _by Ewen Hill_ Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ about this event: https://2025.stateofthemap.org/sessions/NVHF3U/

00:26:59

Lessons from teaching OpenStreetMap in a masters...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/04

Teaching with OpenStreetMap has mostly been focused at the high school and undergraduate levels. In this presentation, I will share my experience of integrating OpenStreetMap into a professional graduate program, the Master of Geomatics for Environmental Management at the University of British Columbia. We will look at some of the opportunities for teaching with OpenStreetMap at the graduate-level, identify some of the challenges with teaching natural resource management with OpenStreetMap, and

00:07:28

Addressing Participation Gaps in Nepal’s OSM...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

Nepal’s OpenStreetMap (OSM) community is currently experiencing a noticeable decline in active participation and long-term engagement. While the ecosystem once thrived on regionally supported events and student-led enthusiasm, it now faces a rise in passive contributors and a lack of continuity in mapping efforts. This trend is particularly concerning in a context like Nepal, where access to reliable and up-to-date geospatial data remains limited, and OSM presents a valuable, open-source alternative

00:08:58

Resilience Starts with a Map: Community-Led OSM...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

Dhaka, one of the most climate-affected cities in South Asia, is home to millions of migrants living in informal urban settlements. These densely populated areas are increasingly exposed to environmental and health hazards, particularly seasonal waterlogging and recurring dengue outbreaks. Despite the severity of these issues, many of these settlements remain underrepresented in official datasets, limiting the ability to implement targeted and effective resilience measures. As part of our Capstone

00:05:19

Behaviour-Based Quality Assessment of OpenStreetMap...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

This study introduces a behavior-dependent, unsupervised machine learning approach to assess the intrinsic quality of OpenStreetMap (OSM) data in Dhaka, which is both data-starved and urbanizing rapidly urbanizing area. Leveraging enriched contributor metadata and Principal Component Analysis (PCA), latent behavioral patterns and segmented contributors identified using KMeans and HDBSCAN. The silhouette score for PCA-based clustering was 0.951. The results show superior interpretability of KMeans

00:05:47

EUthMappers - learning by teaching mapping (sotm2025)

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

EUthMappers is an ERASMUS+ initiative that promotes STEAM education in secondary schools throughout the European Union, enhancing students' digital skills and fostering environmental civic engagement. The project includes three universities, students and teachers from five European schools, working for two years. The project has three main phases: development of training materials, local mapping projects and humanitarian mapping collaboration. This presentation outlines the project's implementation

00:21:18

Lightning Talks I (sotm2025)

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

## OpenStreetMap Sound Demo _by Taro Matsuzawa (@smellman)_ ## ArcGIS Living Atlas of the World: Open Data Content _by Deniz Karagulle_ Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ about this event: https://2025.stateofthemap.org/sessions/P3FWCW/

00:29:49

Intelligent Enough? Evaluating Collective Action in...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

This talk examines the dynamics of collective intelligence in humanitarian mapping projects coordinated through the HOT Tasking Manager, using a dataset of 746 projects and 312,289 tasks to evaluate participation, collaboration, and evidence of intelligent group behavior. Humanitarian mapping projects coordinated through the Humanitarian OpenStreetMap Team Tasking Manager (HOT-TM) represent a paradigmatic case of large-scale digital collaboration. Yet, while their practical utility in disaster

00:30:12

User testing of AI-assisted mapping tool fAIr (sotm2025)

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

Humanitarian OpenStreetMap Team proposed the fAIr project (https://fair.hotosm.org/) - an open-source AI-assisted mapping tool. This study describes our user testing organized to compare AI-assisted mapping of buildings in the fAIr tool and classic manual mapping of buildings in the JOSM editor without AI assistance. 26 participants took part in the experiment. Efficiency (number of buildings mapped per minute), effectiveness (proportion of buildings mapped correctly), and satisfaction (feedback

00:52:58

Mapping workflows in iD for new, intermediate and...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

Mapping in iD is designed to be a welcoming experience that should require little to no required knowledge to get started. Additionally, the editor does also have some additional features up its sleave for more advanced mapping tasks. Regardless if you are a new, intermediate or advanced mapper: it can never hurt to know a trick or two that make your mapping more efficient!This talk will go through common mapping workflows in iD and how they can elevate your mapping experience. There will be

00:29:59

Keeping alive OSMTracker (sotm2025)

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

This is a story about the last 7 years of OSMTracker and how, from an academic space in a Costa Rican public university, we managed to keep alive the app with computer engineering undergrad students. We want to share what we have learned: the challenges and contributions during this process, and how we plan to continue. OSMTracker is one of the oldies free software data capture tools in the OSM ecosystem. Its simplicity, low technical requirements, easy customization, and ability to use the

00:24:44

When Metadata Isn’t Enough: Extrinsic Quality...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

This talk explores the extrinsic quality of OpenStreetMap data in Brno by comparing the city’s most frequently mapped amenities against a custom, field-collected reference dataset. The findings highlight relatively high attribute accuracy in OSM but reveal gaps in feature completeness, with only about 34.94% of features matched with the reference dataset. OpenStreetMap is a notable example of a database created by volunteers. Due to its open approach to data collection, establishing trust in the

00:06:44

OSMlanduse: A dataset of European Union land use at...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

OSMlanduse is the first EU-wide 10 m land-use map integrating 3.2 million OpenStreetMap geometries with Sentinel-2 imagery through an open deep-learning workflow. Delivering CORINE-level thematic detail with finer spatial resolution, it achieves 89% accuracy, providinng wall-to-wall coverage while retaining OSM’s sub-metre detail where available. Released under open licences with reproducible scripts, it supports applications from climate modelling and biodiversity surveys to urban planning and

00:06:26

Leveraging OpenStreetMap for hyperlocal geocoding of...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

This study presents a geospatial framework that combines NLP, machine learning, and GIScience to extract and georeference tweets related to the November 2016 Haifa wildfire, enabling near real-time insights into urban fire dynamics. Using OpenStreetMap and GeoNames to geocode over 16,000 tweets, the researchers demonstrated strong spatial and temporal alignment with official fire incident reports, highlighting social media’s potential as a supplementary data source for disaster response. The

00:08:44

PlaceCrafter: Curating Urban Functional Regions...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

The world is not just made of streets, buildings, and zones; it is shaped by how people engage and interact with places in their everyday lives. This abstract presents a web-based geospatial tool that supports the mapping of these lived places and locales named PlaceCrafter. PlaceCrafter supports researchers in identifying platial regions: functional, human-centred areas that cross administrative and formal boundaries. The framework is built on OpenStreetMap, combining (near) real-time clustering,

00:29:53

Walking Milano: Unveiling the City’s Character...

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

Between September 2024 and August 2025, we conducted a comprehensive street-level survey of Milano, Italy, capturing approximately one million 360° panoramic images using a monopod-mounted camera setup. These images were uploaded to Mapillary, contributing to open-access urban geospatial data. This presentation shares practical insights into continuous data collection methods and analyzes urban characteristics discernible from the imagery, such as graffiti prevalence, urban greenery distribution,

00:24:26

Awesome (OSM) Games (sotm2025)

Chaos Computer Club - recent events feed (high quality) ·

2025/10/03

OpenStreetMap and games feel like they go hand-in-hand and that's more than just coincidental. Both OSM and gaming have the power to bring people together, foster community engagement, and provide unique experiences. In fact, the OSM wiki has a page for games built using OSM data (https://wiki.openstreetmap.org/wiki/Games) and in recent years, we've seen the increase in the use of tools such as MapRoulette and StreetComplete that gamify the experience of contributing to OSM. While the latter is a

00:10:52

How to Quellcode (quellcode25)

Chaos Computer Club - recent events feed (high quality) ·

2025/09/28

Kurzer Talk, indem ich kurz vorstelle wie wir die Quellcode organisiert haben. https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://pretalx.0x90.space/quellcode-2/talk/QVGLUD/

1,937 results

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