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GIScience Blog

Author: GIScience HD

  • Methodological aspects of the spatial analysis of geosocial media feeds: from locations towards places

    A new journal article about Methodological aspects of the spatial analysis of geosocial media feeds: from locations towards places has just been published in gis.science Vol 2 2019. It covers some main aspects and findings of the PhD Thesis of our team member Rene Westerholt (now at Warwick UK) and relates those to the analysis of place in…

  • Understanding human mobility from social media data for epidemic surveillance in urban environment

    Vector-born diseases – such as Malaria, Dengue or Zika are serious health hazards in tropical regions. The outbreaks show high temporal and spatial variability. For example, the number of dengue cases in the state of São Paulo increased by 2,124% in the first 11 weeks of 2019 (up to March 16, 229,064 cases were reported),…

  • Support the global OSM Climate Protection Map at WorldEnvironmentDay

    Today, June 5 is the #WorldEnvironmentDay. World Environment Day is the United Nations day for encouraging worldwide awareness and action to protect our #environment. Above all, World Environment Day is the “people’s day” for doing something to take care of the Earth. That “something” can be local, national or global. This is a good opportunity to…

  • The Triangle of Shared Data Sources

    Todays data production, maintenance, and use have changed in the last years.  While these tasks were reserved to professionals until a few years ago, the situation has changed.  This is no different in the geographical domain. Volunteers gather general information in Wikipedia and geographical information in OpenStreetMap.  Twitter users provide not only text snippets but…

  • Successfull PhD Defence by Clemens Jacobs on Plausibility Estimation of Citizen Science Observations for Biodiversity

    Last week Dr. Clemens Jacobs successfully defended his PhD about methods for assessing the data quality of citizen science observations of organisms. Congratulations, well done!!! We wish all the very best for the future! The research aimed at using geographic context as an information source for estimating the plausibility of an observation, e.g., of a bird,…

  • OpenRouteService with waypoint optimization

    As promised earlier this year, we are very happy to finally announce the unveiling of our new route optimization endpoint! We deployed an instance of the popular Vroom open-source engine, which is capable of solving complex Vehicle Routing Problems (VRP) in record time. This type of problem always occurs when multiple locations need to be visited…

  • Colloquium on Assessment of Risk from Natural Hazards in Urban Areas

    We cordially invite everybody interested to our next open GIScience colloquium talk The speaker is Dr. Massimiliano Pittore GFZ German Research Centre for Geosciences – Helmholz Centre Potsdam When: Monday 20.05.2019, 2:15 pm Where: INF 348, room 015 (Institute of Geography, Heidelberg University) GIScience for GEOscience: challenges and opportunities in a risky world The assessment of risk…

  • How to become ohsome part 5: Measuring numbers of users editing different OSM features

    Besides dealing with a snake, making quality assessments, or generating comparable statistics, one needs to know how to handle the whole functionality provided by the ohsome API to really become ohsome. And to achieve exactly that, this blog presents the last missing entry point to the API from the current toolkit, namely the /users resource. With its help you can receive aggregated…

  • Colloquium on Laser Scanning for Forestry Applications

    We cordially invite everybody interested to our next open GIScience colloquium talk The speaker is Moritz Bruggisser TU Wien, Department of Geodesy and Geoinformation, Photogrammetry Division When: Monday 06.05.2019, 2:15 pm Where: INF 348, room 015 (Institute of Geography, Heidelberg University) Multi-scale laser scanning for forestry applications Airborne laser scanning (ALS) has been used for the derivation…

  • Guest Scientist Prof. Dr. Jochen Albrecht at GIScience Research Group

    This summer term, the GIScience research group at Heidelberg University has the honour of hosting Prof. Dr. Jochen Albrecht as a guest scientist. We are very pleased to welcome Jochen to Heidelberg and to our research group! Dr. Jochen Albrecht is a professor for Computational and Theoretical Geography at Hunter College in New York City.…

  • Start of HCE’s series of talks on “Changing Climate”

    The Heidelberg Center for the Environment‘s public series of talks “Heidelberger Brücke” is starting today! This semester’s topic is “Changing Climate”. Today, Prof. Dr. Birgit Schneider, University of Potsdam, Department of Arts and Media, speaks in German about the role of images in communication of climate change: “Klimabilder. Die Rolle der Bilder für die Kommunikation des…

  • Colloquium on Suburban Global Greenhouse Gas Emissions

    We cordially invite everybody interested to our next open GIScience colloquium talk The speaker is Dr. Jochen Albrecht Professor for Computational and Theoretical Geography, Hunter College, City University of New York When: Monday 29.04.2019, 2:15 pm Where: INF 348, room 015 (Institute of Geography, Heidelberg University) The Geography of Suburban Global Greenhouse Gas Emissions The common…