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Category Archive for 'VGI Group'

Starkregen stellt eine besondere Gefährdung in Heidelberg dar. Studierende haben bereits im Rahmen eines Seminars der GIScience und in Zusammenarbeit mit dem Amt für Umweltschutz, Gewerbeaufsicht und Energie der Stadt Heidelberg Informationen zu Starkregen in Handschuhsheim mit partizipativen Methoden gesammelt und analysiert (Blogbeitrag).
Nun bietet die Stadt Heidelberg über die Infoseite www.heidelberg.de/starkregen ein Portal [...]

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Get valuable insights into the quality and development process of OpenStreetMap data with ohsomeHeX!
We are proud to announce a new release that provides a completely redesigned UI that makes it easier to keep track of all relevant information. Choose one or more topics, choose different areas of interest and let ohsomeHeX create comparison graphs for [...]

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A recently published paper provides a bibliometric review between integration of authoritative and volunteered geographic information (VGI) for the specific purpose of cartographic updating of urban mappings. The adopted methodology was through a bibliometric survey of the literature published by Web of Science and Science Direct. The period was evaluated from 2005 to 2020 and [...]

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After more than a decade of rapid development of volunteered geographic information (VGI), VGI has already become one of the most important research topics in the GIScience community. Almost in the meantime, we have witnessed the ever-fast growth of geospatial deep learning technologies to develop smart GIServices and to address remote sensing tasks, for instance, [...]

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HeiGIT unterstützt Workshops zu OpenStreetMap und humanitärem Mapping auf der AGIT 2020
In dieser Woche findet die jährliche AGIT-Konferenz und das parallele GI Forum statt. Während die Konferenz bereits seit mehr als 30 Jahren erfolgreich Vertreter aus Wissenschaft, angewandter Forschung und Wirtschaft nach Salzburg brachte, musste aufgrund der Corona Situation zum ersten Mal auf eine virtuelle [...]

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We are proud to announce the successful Kickoff of the 25 Mapathons project. On June, 22th a joint team of HeiGIT and the German Red Cross (GRC) carried out the first mapathon of the 25 Mapathons series. The mapathon was conducted with the local GRC groups from Witten and Lünen, which [...]

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Multi-sensor remote sensing image classification has been considerably improved by deep learning feature extraction and classification networks. In this recent paper, we propose a novel multi-sensor fusion framework (CResNet-AUX) for the fusion of diverse remote sensing data sources. The novelty of this paper is grounded in three important design innovations:

A unique adaptation of the [...]

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The Humanitarian OpenStreetMap Team (HOT) has announced major financial support from the Audacious Project, which will be provided over the next five years. HOT aims to use this funding to grow OpenStreetMap (OSM) communities in 94 countries. By engaging one million volunteers the goal is to map an area home to one billion people living [...]

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[tl;dr]
Using hospital locations and the ORS Isochrone service, we have created a method for comparing physical access to healthcare in Sub-Saharan Africa. Hospital locations were derived from OpenStreetMap and compared against another free available dataset. Results indicate strong similarity in both hospital datasets, however the uncertainty of our method requires further evaluation.

Figure 1 Stacked barchart [...]

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Today the time has come: The “meinGrün” web app for Dresden and Heidelberg is officially launched.
With the mobile application you can (re-)discover known and unknown green spaces and find a pleasant route to those. Users can learn about the functions of the app via virtual scavenger hunt. The app is the result of the [...]

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