Several urban studies have been increasingly relying on spatial data provided by Volunteered Geographic Information (VGI) sources. The matching of features across different VGI projects may serve to assess and improve the reliability and completeness of VGI data. In a recent study, we first provide a short discussion on the similarity measures often used for [...]
Category Archive for 'Research'
Three talks from GIScience Heidelberg were given at the Annual Meeting 2017 of the DGPF (German Society for Photogrammetry, Remote Sensing and Geoinformation) on 9 March 2017. Thanks a lot to Benni, Tomás and Sebastian for the very nice talks. More technical infos on the presented research can be found in the previous blog post [...]
Crowdsourced Geographic Information (CGI) has emerged as a potential source of geographic information for different domains. Despite advantages associated with it, such information lacks quality assurance, since it is provided by different individuals. Several authors have investigated different approaches to assess CGI quality. Some of the existing methods have been summarized in different classification schemas. [...]
Wir laden alle herzlich dazu ein, einen Vortragsbeitrag (Abstract) zu unserer Fachsitzung “3D-Punktwolken in der Geographie – Erfassung, Analyse und Visualisierung” (LT6-FS4) für den Deutschen Kongress für Geographie am 30.9. – 5.10.2017 in Tübingen einzureichen.
Für fachliche Fragen stehen die Fachsitzungsleiter Bernhard Höfle (Heidelberg) und Martin Rutzinger (Innsbruck) gerne zur Verfügung.
Online Einreichung eines Abstracts: http://www.dkg2017-tuebingen.de/anmeldung-einreichungen/abstracteinreichung/call-for-papers/
Deadline: 31. [...]
At the Annual Meeting 2017 of the DGPF (German Society for Photogrammetry, Remote Sensing and Geoinformation) GIScience Heidelberg will contribute three talks on 9 March 2017.
Citizen Science in Schulen: Entwicklung von 3D-MicroMapping zur Klassifikation von 3D-Punktwolken (Research Project: 3D-MAPP)
The Heidelberg LiDAR Operations Simulator HELIOS as a Supporting Tool for Capturing and Preserving Cultural Heritage [...]
On 7 March 2017 the 3rd PhD Colloquium of the DGK Section on Geoinformatics and the DGPF Working Group on Geoinformatics took place in Würzburg, Germany - organized by Prof. Jan-Henrik Haunert (Bonn) and Bernhard Höfle (Heidelberg).
The presentations covered a wide range of topics (e.g. 3D indoor mapping, air pollution modeling, traffic time series analysis [...]
The aftereffects of disaster events are significant in tourist destinations where they do not only lead to destruction and casualties, but also long-lasting economic harms. The public perception causes tourists to refrain from visiting these areas and recovery of the tourist industry, a major economic sector, to become challenging. To improve this situation, current information [...]
Observations of living organisms by citizen scientists that are reported to online portals are a valuable source of information. They are also a special kind of volunteered geographic information (VGI). VGI data have issues of completeness, which arise from biases caused by the opportunistic nature of the data collection process. We examined the completeness of [...]
The Master Thesis of Jan Kinne on the subject: “The Geographic Dispersal of the German Software Industry - Geospatial Analysis and Location Pattern Modeling” won the price “Nachwuchsförderpreis Geoinformatik 2017” of the “Runde Tisch GIS e.V.” in the category ‘Master Thesis’ with a value of 1.500 Euro.
In addition Jan did also win the audience [...]
Deep learning techniques, esp. Convolutional Neural Networks (CNNs), are now widely studied for predictive analytics with remote sensing images, which can be further applied in different domains for ground object detection, population mapping, etc. These methods usually train predicting models with the supervision of a large set of training examples. However, finding ground truths especially [...]