GIScience Logo
HeiGIT Logo
3DGeo Logo

GIScience Blog

Category: VGI Group

  • Talk on OpenStreetMap data quality at University of São Paulo, Brazil

    During mid August and September, Amin Mobasheri had a short research visit to Institute of Mathematics and Computer Science (ICMC) at University of São Paulo, Brazil. Last week on 14th of September, he gave a presentation about “Open Geospatial Data Quality Assessment and Enrichment. The Case study of Routing and navigation services for people with limited…

  • Report on the 27th International Cartographic Conference; Rio de Janeiro, Brazil

    The 27th International Cartographic Conference (ICC) was held from 23-28th of August in Rio de Janeiro, Brazil. The conference brought together several hundreds of professors, researchers and students worldwide in three main disciplines of Cartography, GIScience, and Remote Sensing to discuss various research topics ranging from map design, map use, users and usabilities to location…

  • Matching GPS trajectories to street segments – an open source implementation

    We would like to inform about a new open source tool that allows matching of GPS trajectories to corresponding street segments. The tool implements a simplified version of the algorithm presented by Zhang et al. (2010). It is a JAVA based implementation and has been put under LGPL license. You can access the source code…

  • OpenRouteService at the Heidelberg wheelchair marathon

    On last Saturday we braved the tropical heat and used the occasion of the 13th international wheelchair marathon in Heidelberg to inform the public about our recent developments regarding wheelchair accessible route planning with OpenRouteService. We are thankful for the interesting conversations with people from Germany, Denmark, Japan, England and France and for their valuable…

  • Extracting raw GPS data from OpenStreetMap – an LGPL tool

    We are happy to announce that a new JAVA-based tool is available that allows extracting raw GPS data from the OpenStreetMap GPS planet file. The tool is under LGPL license. It allows to specify a bounding box and to export the extracted data to 3D-Shapefiles. Besides the full GPS planet file there are also regional…

  • A Conceptual Quality Framework for Volunteered Geographic Information (VGI)

    The assessment of the quality of volunteered geographic information (VGI) is cornerstone to understand the fitness for purpose of VGI in many application domains. Most analyses focus on the geometric and positional quality, and only sporadic attention has been devoted to the interpretation of the data, i.e., the communication process through which consumers try to…

  • AGILE 2015 conference (and third place poster award)

    Last week saw the 18th AGILE conference being held in Lisbon, Portugal. Starting on Tuesday with a number of parallel workshops, the conference ran until Friday and included a number of interesting talks, key note sessions and a number of social events. The presence of GIScience at Heidelberg University was felt through two workshops being…

  • Crowdsourcing Accessibility Information – Talk at University of Education Heidelberg

    Yesterday, a talk was given by Stefan Hahmann within the frame of the colloquium series of the geography department at Heidelberg University of Education. The talk was entitled “Crowdsourcing for individual needs – the example of wheelchair routing“. Besides a general introduction to the field of crowdsourcing, VGI and OpenStreetMap, our research and development activities…

  • Invitation to GIScience Colloquium: An Agent-Based Model of Individual and Collective Place Formation

    We cordially invite any interested person to the next GIScience Heidelberg colloquium presentation this week on Thursday, 18 June 2015, 2.00 p.m. in the Lecture Hall, Institute of Geography, Heidelberg University, Berliner Str. 48, 69120 HD. The title of the talk is “An Agent-Based Model of Individual and Collective Place Formation” and will be given…

  • Report on Human Sensor and Geographic Information Systems for Disaster Risk Management (HSenSIG) training school

    On the dates of 11 to 15th of May, the European Commission (COST Action TD1202: Mapping and the Citizen Sensor) organized a training school on Human Sensor and Geographic Information Systems for Disaster Risk Management (HSenSIG) hosted by the Institute for Systems Engineering and Computers at University of Coimbra, Portugal. Our colleague, Prof. João Porto Albuquerque was invited…

  • Teaching and research in Santiago de Chile / Docencia e investigación en Santiago de Chile

    During the first half of May 2015, Bernhard Höfle and his NEOHAZ team members Carolin Klonner, Sabrina Marx and Tomás Usón were teaching at the Heidelberg Center for Latin America (HCLA) in Santiago de Chile as well as conducting research for the NEOHAZ project related to urban flood risk management. The project aims at analysing…

  • Mapping Support Event for Nepal at ISCRAM conference 2015 in Norway

    As members of the disastermappers heidelberg and the GIScience Research Group Benjamin Herfort and Melanie Eckle were presenting their research at this years ISCRAM conference in Kristiansand, Norway. ISCRAM being a conference for researchers and practitioners in the field of disaster and emergency management, they also used this situation to set up a spontaneous Mapping…