Category: Research
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Version 1.0 of the ohsome quality API and ohsome dashboard
At HeiGIT and in particular within the ohsome team, we strive to provide valuable insights into OpenStreetMap (OSM) data. The ohsome API offers aggregated statistics on the evolution of OSM elements since 2020. These are made easily accessible by the ohsome dashboard. With the ohsome quality API, previously called ohsome quality analyst (OQT), we continue…
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Bachelor’s thesis: Using OSM for location analyses of residential real estate projects – an extrinsic analysis of data quality
In his bachelor’s thesis, supervised by HeiGIT’s apl. Prof. Dr. Sven Lautenbach, Lars Reckhaus examined the suitability of OpenStreetMap (OSM) for location analyses in the context of residential real estate projects. Typically, such analyses require the use of a variety of data sources and are mostly performed manually. For this reason, they tend to be…
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Introducing ohsomeNow stats: Real-Time Monitoring for OpenStreetMap Contributions
You can now monitor contributions to OpenStreetMap (OSM) in real time with ohsomeNow stats! We developed this new dashboard as part of our long-term cooperation with the Humanitarian OpenStreetMap Team (HOT), an international organization dedicated to humanitarian action and community development through open mapping. This dashboard replaces the Missing Maps Leaderboard with a comprehensive overview of…
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Research Visit at Universidade Federal Fluminese (UFF) in Rio de Janeiro
In context of his research on mosquito monitoring and inner-urban dengue occurence, PhD student and GIScience team member Steffen Knoblauch visited the “Universidade Federal Fluminese” (UFF) in Niterói, State of Rio de Janeiro, Brazil. He was invited to meet collaborators and professors of UFF and to present his work in “Dengue Risk Modelling at an Urban…
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Advancing Geospatial Techniques for Vector-Borne Disease Research: Insights from GIScience-CSIAD Collaboration – a conference recap
Recently, Hanse-Wirtschaftskolleg hosted its meeting which brought together experts from GIScience and CSIAD lab, along with renowned researchers from universities in Germany, Thailand, and Ghana, serving as a platform for interdisciplinary collaboration on vector-borne diseases. This event brought together esteemed researchers to share their expertise and insights into combating mosquito-borne illnesses. As an invited speaker,…
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Integration of OQT into the ohsome dashboard: Computing data quality metrics for OpenStreetMap
The ohsome dashboard has been and continues to be an easy access point to generate accurate statistics about the historical development of OpenStreetMap data for arbitrary regions. Now, the ohsome dashboard got extended to be able to compute data quality metrics for OpenStreetMap through the ohsome quality analyst (OQT) which is also developed by HeiGIT. The source code is now…
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OSM Element Vectorisation Tool Version 1
The IDEAL-VGI research project is nearing its end. And while that won’t be the end of our research into social data sources, data quality analyses and land-use information, we are happy to announce a major outcome: the version 1 release of the OSM Element Vectorisation Tool (OEV). The tool was first presented to the public…
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Final meeting of the E-TRAINEE project
Last week, the 3DGeo research group hosted the final meeting of the E-TRAINEE project, finally and for the first time in presence. For almost three years now, we have been developing a research-oriented open-source e-learning course – soon to be published! The course on “Time Series Analysis in Remote Sensing for Understanding Human-Environment Interactions” teaches…
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2022 #30DayMapChallenge Round-Up Part 2: Deleted Maps
Featured photo: The deleted map displays all deleted elements within the analyzed areas (red). Gray rectangles represent deleted buildings. This past November, our teams at HeiGIT and GIScience participated in Topi Tjukanov’s Twitter event #30DayMapChallenge, where mappers display their creativity and ingenuity with a set of 30 daily prompts ranging from colors to specific datasets…
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Training on digitalization of participatory mapping in Kuala Lumpur
Featured Image: Training participants simulating a participatory mapping on the ground with the SketchMapTool. Last week, HeiGIT team member Anne Schauß held a workshop session in Kuala Lumpur, Malaysia, during a training of the International Federation of Red Cross and Red Crescent Societies (IFRC). The international training focused on community resilience and how to assess…
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How to become ohsome part 15- Analysing Changes in OSM after the Earthquake in Syria and Türkiye in February 2023
Featured Map: Percent change in each province of Türkiye and Syria of buildings in OSM. Data from OpenStreetMap, visualized using QGIS and the ohsome API plugin. Welcome back to the how to become ohsome series! If you’re new to the series, you can check out the previous issues (like this one) or the ohsome Region of…
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GeoEpi at CGA 2023: From Geospatial Research to Health Solutions
Featured photo: The geoEpi team attending CGA 2023. Back row from left: PD Dr. med. Thomas Jaenisch, Assoz. Prof. Dr. Bernd Resch, Dorian Arifi and Steffen Knoblauch. Front row from left: Dr. rer. nat. Ivonne Morales Benavides, Apl. Prof. Dr. Sven Lautenbach, and Dr. Yannik Roell. Ever since Dr. John Snow’s 1854 tracing of a…