Category: Research

  • Talk ‘3D-Geoinformation aus Laserscanningdaten’ at workshop ‘The future courtroom’

    At Thursday, 22nd of October, the GIScience LiDAR Research Group (LRG) contributed to the workshop ‘The future courtroom‘ (website in German) with a talk introducing the analysis of 3D Geodata and the connections to forensic science. Martin Hämmerle presented a selection of LRG projects covering a wide range of applications and use cases, from crowd…

  • Exploring spatiotemporal and semantic clusters of Twitter data using unsupervised neural networks

    The investigation of human activity patterns from location-based social networks like Twitter is a promising example of how to infer relationships and latent information for the characterization of urban structures. While there is a growing research body performing spatial analysis on social media data, the high dimensionality, complexity and granularity of social media information still…

  • Merging volunteered and expert accessibility data

    On Tuesday 13 October, we have been more than happy to host volunteers of SAP in the course of the “SAP month of service” as our guests. They have supported us to merge volunteered data about accessibility from wheelmap.org and expert data about accessibility from Heidelberg Hürdenlos (a local accessibility platform). Heidelberg Hürdenlos contains more…

  • A Conceptual Quality Framework for Volunteered Geographic Information @ COSIT 2015 this Tuesday

    The Conference on Spatial Information Theory (COSIT) is taking place this week in Santa Fe, USA. This Tuesday our paper on “A Conceptual Quality Framework for Volunteered Geographic Information” by Andrea Ballatore and Alexander Zipf is being presented there. It outlines new proxy measures to several facets of conceptual quality, including accuracy, granularity, completeness, consistency,…

  • Workshop bridging OSM community and Wheelchair Users

    Our EU project CAP4Access (MyAccessible.EU) has organized a first international expert workshop during the 5th International Congress on “Tourism for All” in Madrid on 23 September, 2015. The 5th International Congress on Tourism for All has been held in Madrid from September 23 to 25. The first CAP4Access international expert workshop was organized during this…

  • GIScience HD @ ISSDQ’15 in France

    CIScience Heidelberg members Dr. Tobias Törnros and Dr. Hongchao Fan attended the ISSDQ’15 (The 9th International Symposium on Spatial Data Quality) from 28 to 30 September 2015 in La Grande Motte, France. Tobias had an excellent talk about uncertainties of completeness measures in OpenStreetMap – A case study for buildings in a medium-sized German city.…

  • Twitter as an indicator for whereabouts of people? Correlating Twitter with UK census data

    Detailed knowledge regarding the whereabouts of people and their social activities in urban areas with high spatial and temporal resolution is still widely unexplored. Thus, the spatiotemporal analysis of Location Based Social Networks (LBSN) has great potential regarding the ability to sense spatial processes and to gain knowledge about urban dynamics, especially with respect to…

  • 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…

  • Best Paper at ACM SIGSPATIAL GeoCrowd Workshop for our paper on Transport Flow Analysis from Social Media Data

    Our paper titled “Explorative Public Transport Flow Analysis from Uncertain Social Media Data” in the GeoCrowd 2014 workshop of the ACM SIGSPATIAL conference has been selected by the workshop organizers as its best paper. In this paper, we propose a framework to detect human mobility transportation hubs and infer public transport flows from unstructured georeferenced…

  • Second expedition in the Mackenzie Delta

    Mid of August we started for our second field trip in the Canadian Arctic. This time the team consisted of Inga Beck, Sabrina Marx and Detlef May. As Sabrina already joined the trip in June, many things – such as customs, security etc. worked much easier than in June. We only had very little time…

  • 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…

  • Press release about our new project 4DEMON

    The Heidelberg University reports in a current press release (in German) about our new project 4DEMON: 4D Near Real-Time Environmental Monitoring, which is funded by the highly competitive Junior Professorship Funding Scheme of the Ministry of Science, Research and Arts, Baden-Wuerttemberg.