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GIScience Blog

Category: VGI Group

  • Spatial conceptual compliance analysis with the OpenStreetMap History Database (OSHDB)

    In a previous blog post we performed a conceptual compliance analysis between OSM data and several tagging-guidelines using the OSHDB API. The results were visualized in a line chart, comparing the different compliance ratio over several months. The following analysis focuses on a spatial representation of the conceptual compliance. It is conducted for the “iD-editor”…

  • HOT Summit 2019 is coming to Heidelberg

    We are happy to hereby share latest information about the 5th HOT Summit- the annual gathering of the Humanitarian OpenStreetMap Team community- which after great events in Washington, Brussels, Ottawa and Dar es Salaam, will next year come to the picturesque city of Heidelberg, September 19th and 20th. HOT Summit 2019 as well as the…

  • Recommendations for organising better mapping parties with the aim of improving OpenStreetMap and Wheelmap data completeness

    Nowadays, several research projects show interest in employing volunteered geographic information (VGI) to improve their systems through using up-to-date and detailed data. The European project CAP4Access was one of the successful examples of such international-wide research projects that aimed to improve the accessibility of people with restricted mobility using crowdsourced data. In this project, OpenStreetMap…

  • A grounding-based ontology of data quality measures

    Data quality and fitness for purpose can be assessed by data quality measures. Existing ontologies of data quality dimensions reflect, among others, which aspects of data quality are assessed and the mechanisms that lead to poor data quality. An understanding of which source of information is used to judge about data quality and fitness for…

  • How much do you know about Wheelmap?

    Within the European FP7 project “CAP4Access“, we studied the usage of crowdsourced geographic information (and more specifically OpenStreetMap data) for improving accessibility in selected European regions. This 3 year research study led to several implementations and extensions of Open Source GI solutions with respect to OSM data quality assessment as well as wheelchair routing and…

  • GeOnG Conference 2018: Workshop Materials and Slides

    After the successful GeOnG conference 2018 in chambery we want to thank the organizers and all participants. We contributed in several ways, as already highlighed in our previous blogpost. Now, we also want to share our slides and workshop material with everyone interested. Round table discussion: Machine Learning, AI & satellite imagery: what impact on…

  • HeiGIT at the ‘Fachtagung Katastrophenvorsorge’

    Last week the ‘Fachtagung Katastrophenvorsorge‘ took place in Berlin. The annual symposium, organized by the German Red Cross, brings various actors together involved in national and international disaster risk reduction. Our workshop, which we were running together with the Federal Office of Civil Protection and Disaster Assistance (BBK) and the German Aerospace Centre (DLR), focused…

  • Do people communicate about their whereabouts? Investigating the relation between user-generated text messages and Foursquare check-in places

    The social functionality of places (e.g. school, restaurant) partly determines human behaviors and reflects a region’s functional configuration. Semantic descriptions of places are thus valuable to a range of studies of humans and geographic spaces. Assuming their potential impacts on human verbalization behaviors, one possibility is to link the functions of places to verbal representations…

  • Jupyter Notebook: Combining Twitter Data and OpenRouteService Directions API

    In the case of a disaster fast response is important and life saving. Information on blocked streets is crucial, but a the same time this infornations needs to be considered by routing engines in real-time. However, many routing engines use street network data which is at best updated once a week or even less often.…

  • GIScience at 6th Dialogue Platform on Forcast-based Financing in Berlin

    Melanie Eckle (HeiGIT/Humanitarian OpenStreetMap Team) will join the Dialogue Platform on Forcast-based Financing in Berlin tomorrow to share insights about the Missing Maps project, the related work of the HeiGIT/GIScience Research Group and the Humanitarian OpenStreetMap Team and potential ideas for further collaboration. The International Federation of Red Cross and Red Crescent Societies and the…

  • Making sense of humanitarian geospatial data- Reassessing current approaches to improve the impact on humanitarian interventions

    Last week, Benjamin Herfort and Melanie Eckle of the HeiGIT team were invited to the MSF office in London to join a workshop around “Making sense of humanitarian geospatial data: assessing data, methods and governance practices to improve the impact of humanitarian interventions on health and wellbeing”, organized by the Centre for Interdisciplinary Methodologies, University…

  • 7th International Conference on Cartography & GIS

    The 7th International Conference on Cartography & GIS took place at Sozopol (Bulgaria) 18-23 June 2018. It was organized by Bulgarian Cartographic Association, International Cartographic Association and University of Architecture, Civil Engineering and Geodesy (UACEG), Sofia and co-organizers – Military Geographic Service, Bulgaria, and Bulgarian Red Cross. The main topics of the conference were: GIS…