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GIScience Blog

Category: Publications

  • Ohsome for Street Network Analysis and Disaster Activation Monitoring

    Disaster mapping activations that are supported by many volunteers with various levels of experience raise questions related to the quality of the provided Volunteered Geographic Information. Learning about the data quality that can be expected in a disaster activation helps to evaluate the quality and fitness for purpose of the OSM data. At the ISCRAM…

  • Identifying the Effects of Mobility Domains on Volunteered Geographical Information: Towards an Analytical Approach

    The production of Volunteered Geographic Information (VGI) is a type of human behavior which emerges via direct and indirect interactions with the physical environments described by these data. The nature of these interactions and the extent to which they rely on physical presence in the mapped area may affect the quality of the resulting digital…

  • Associating OpenStreetMap tags to CORINE land-cover classes using text and semantic similarity measures

    With the aim of rapidly estimating the updated state of the CORINE land-cover map at the frequency with which the OpenStreetMap (OSM) dataset is edited and extended, we propose an approach for automatically associating widely used OSM tags to Level 1 and Level 2 CORINE land-cover classes. This association is probabilistic and is undertaken based…

  • Coupling maximum entropy modeling with geotagged social media data to determine the geographic distribution of tourists

    Modeling the geographic distribution of tourists at a tourist destination is crucial when it comes to enhancing the destination’s resilience to disasters and crises, as it enables the efficient allocation of limited resources to precise geographic locations. Seldom have existing studies explored the geographic distribution of tourists through understanding the mechanisms behind it. A recently…

  • A taxonomy of quality assessment methods for volunteered and crowdsourced geographic information

    The growing use of crowdsourced geographic information (CGI) has prompted the employment of several methods for assessing information quality, which are aimed at addressing concerns on the lack of quality of the information provided by non‐experts. In a recently published work, we propose a taxonomy of methods for assessing the quality of CGI when no…

  • Deadline Extended to April 23: VGI-ALIVE Workshop @AGILE 2018

    The Deadline for submitting short papers to the VGI-ALIVE Workshop at AGILE 2018 has been extended to 23 April 2018! This is your chance to submit another contribution to this exiting workshop in Lund, Sweden. Submission format is a workshop short paper (2000 to 3000-word manuscript). Authors of accepted workshop papers will be invited to…

  • Let’s meet at SOTM 2018 :: Paper on OSM History Analytics Accepted in Academic Track

    A paper for the Academic Track of the State of the Map Conference, Milan, has been accepted. We are looking forward to discuss with you following aspects: A growing number of studies analyzes OSM data, its contributors, usage, and quality. Such studies were mostly limited to analyzing either small samples of the OSM database or…

  • Towards Using the Potential of OpenStreetMap History for Disaster Activation Monitoring

    Over the last years, the growing OpenStreetMap (OSM) database repeatedly proved its potential for various use cases, including disaster management. Disaster mapping activations show increasing contributions, but oftentimes raise questions related to the quality of the provided Volunteered Geographic Information (VGI). In order to better monitor and understand OSM mapping and data quality, HeiGIT developed…

  • Graph-based matching of points-of-interest from collaborative geo-datasets

    Several geospatial applications require comprehensive semantic information from points-of-interest (POIs). However, this information is frequently dispersed across different collaborative mapping platforms. Surprisingly, there is still a research gap on the conflation of POIs from this type of geo-dataset. In a recent paper by Novack et al. (2018), we focus on the matching aspect of POI…

  • POI/ROI Discovery using Flickr geotagged photos

    In the era of big data, ubiquitous Flickr geotagged photos have opened a considerable opportunity for discovering valuable geographic information. Point of interest (POI) and region of interest (ROI) are significant reference data that are widely used in geospatial applications. A recently published study (Kuo et al 2018) study aims to develop an efficient method…

  • GESIS Top Publication 2017

    One of our recent publications (Bluemke, Resch, Lechner, Westerholt and Kolb 2017) was elected the “top publication 2017” for the research field of “research data management” at the Leibniz Institute for the Social Sciences (GESIS). The paper discusses methodological challenges common to both survey research and GIScience, and is expected to serve as the starting…

  • 3D micro-mapping: Towards assessing the quality of crowdsourcing to support 3D point cloud analysis

    Crowdsourcing has been widely applied to extract information from 2D geodata sources such as satellite imagery. In this new study published in the ISPRS Journal of Photogrammetry and Remote Sensing we apply this technique to the growing field of 3D point cloud analysis. This work has been conducted in our 3D-MAPP Project which was funded…