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GIScience Blog

Tag: quality analysis

  • LandSense Kick-Off Meeting – EU Citizen Science Observatory on Landuse

    this week sees the Kick-Off Meeting of a new EU Horizon 2020 project called LandSense at International Institute for Applied Systems Analysis (IASA) Laxemburg Austria. The overall aim of the LandSense project is to build an innovative citizen observatory in the field of LandUse LandCover (LULC), which collects data both actively (through citizens) and passively…

  • Talk on Mapping the Crowd at Spatial Cognition Colloquium by A. Zipf and PhD of Ahmed Loai Ali

    today Dr. Ahmed Loai Ali successfully defended his Phd on “Enhancing Data Classification Quality of Volunteered Geographic Information” at Bremen Spatial Cognition Center with Prof. Freksa (Bremen) as first and Prof. Zipf (Heidelberg) as second reviewer. We congratulate Ahmed to his good results! The groups collaborated also earlier (see ref. below) and Ahmed Loai Ali…

  • Report on the 7th PCC meeting and 2nd Expert Workshop for CAP4Access project

    The 7th PCC meeting for CAP4Access project took place on September 8th in Bonn. The meeting was focused on presentations and discussions regarding the works that have been progressed since the last meeting and more importantly, clarifying and planning on what remains to be done for the final deliverables by end of the year. From GIScience…

  • Two new DFG projects on VGI, OSM Quality and Social Media Analysis

    recently we were happy to receive the notification that two new research projects will be funded by the Deutsche Forschungsgemeinschaft (DFG) the German main funding agency for fundamental research. Both projects belong to the DFG Priority Programme “Volunteered Geographic Information: Interpretation, Visualisation and Social Computing“ (SPP 1894). The two projects are: A:) IntrisicOSMquality: A framework…

  • A review of volunteered geographic information quality assessment methods

    While Volunteered Geographic Information (VGI) is gaining more and more popularity and VGI datasets are being used in various projects, there are always concerns about the quality of them. During the past years several studies have been performed regarding VGI quality assessment by employing different methods/approaches. However, if one needs to evaluate the quality of…

  • A conceptual model for quality assessment of VGI for the purpose of flood management

    Volunteered Geographic Information (VGI) has emerged as a potential source of geographic information for different domains. Despite the many advantages associated with it, such information lacks of quality assurance, since it is provided by individuals with different motivations and backgrounds. In response to this, several methods have been proposed to assess the quality of volunteered…

  • Guided Classification System for Conceptual Overlapping Classes in OpenStreetMap

    The increased development of Volunteered Geographic Information (VGI) and its potential role in GIScience studies raises questions about the resulting data quality. Several studies address VGI quality from various perspectives like completeness, positional accuracy, consistency, etc. They mostly have consensus on the heterogeneity of data quality. The problem may be due to the lack of…

  • Urban Landuse, Flood Risks, VGI quality and GIS in humanitarian NGOs – save the date for GIScience presentations

    Earlier this semester Dr. Chiao-Ling started the GIScience colloqium series already with a presentation about An Ontology-based Semantic Interoperability Framework for Geospatial Information. Now stay tuned and save the date for the further presentations in this semester: Deriving urban land use from image data – potentials, limitations and main approaches (Dr. Tessio Novack) Mo, 30.05.2016,…

  • Assessing Data Quality of OSM Buildings and Landuse Revisited :: GIScience Heidelberg contributes to 8th Dresden Land Use Symposium

    On the May 11 and 12, the 8. Dresdener Flächennutzungssymposium (the 8th Symposium of development, monitoring and usages of landuse Dresden) took place in Dresden, Germany. The symposium aims to bring together industry, academy and local government, in order to demonstrate and exchange latest developments in methods, tools and software for the management of landuse…

  • GIScience HD contributes to Int. Conference on Information Systems for Crisis Response and Management

    GIScience Heidelberg regularily contributes to the ISCRAM conferences. This year we again have four papers dealing with different aspects on crowdsoured geographic information (e.g. OpenStreetMap) in disaster response and management (e.g. OpenFloodRiskMap). Eckle, M., Herfort, B., Alberquerque, J., Leiner, R., Wolff, R., Jacobs, C., Zipf, A. (2016): Leveraging OpenStreetMap to support flood risk management: A…

  • 10 Days to Deadline for Link-VGI Workshop Short Papers at AGILE 2016

    A little reminder that the Deadline for Short Papers for the Link-VGI Pre Conference Workshop at AGILE International Conference on Geographic Information Science 2016. Helsinki is approaching! The main theme is “LINKing and analyzing Volunteered Geographic Information (VGI) across different platforms” and the workshop shall focus, but is not limited to, the following topics and…

  • 2nd Call for Papers: Link-VGI Workshop @ AGILE Helsinki in June; Deadline April 25th.

    LINKing and analyzing Volunteered Geographic Information (VGI) across different platforms Pre Conference Workshop at 19th AGILE International Conference on Geographic Information Science 2016. Helsinki, June 14th 2016 Deadline for Call for Short Paper (AGILE short paper format): April 25th 2016 The number of Volunteered Geographic Information (VGI) and social media platforms is continuously growing, providing…