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Monthly Archive for February, 2015

This friday Dipl. Geographer Christian Sengstock successfully defended his PhD thesis in the combined faculty for the natural sciences and mathematics of Heidelberg University. He developed a framework for Geographic Knowledge Discovery from User-Generated data. The thesis was supervised by Prof. Michael Gertz (co-PI at our CrowdAnalyser Graduate School) from the database research group at [...]

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Dear Colleagues,
Earth observation devices and geoinformation technologies, including remote sensing data, platforms, algorithms, geographic information science (GISc), and spatial analysis techniques have played a major role in monitoring the dynamics of our environment and landscape. Additionally, emerging active and passive sensing approaches, such as crowdsourcing, Volunteered Geographic Information (VGI), citizen science (CS), participatory sensing, humans-as-sensors, [...]

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Last few months, we have been working hard on a new backend for OpenRouteService.org. The new implementation is much more flexible and faster than before and supports more sophisticated routing profiles. The services are deployed on a new and more powerful server that makes it possible to update routing graphs based on OpenStreetMap data more [...]

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Last Saturday (21/2) the GIScience group Heidelberg was part of the International Open Data Day. Open data enthusiasts all over the world teamed up to create new applications derived from open (not only governmental) data. The local open data day in Mannheim has seen 7 finished projects including Wikipedia edit wars analyses, public transport visualisations, [...]

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Dear colleagues,
In addition to our RICHVGI workshop in AGILE 2015, which will be held on June 9, 2015 in Lisbon, we are organizing a hands-on session called “VALID-LAND: Assessing the fitness of citizens observatories for land cover/land use mapping and validation purposes“. We would be delighted to see you joining along with spreading the word.
Topics: This workshop [...]

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Tour-Optimization in the Cloud
in cooperation with IBM and Heidelberg Mobil International HDM-I the GIScience Research Group of Heidelberg University presents new approaches and solutions for specialized tour-optimization based on free and open geodata from OpenStreetMap and Cloud-based services in the in the “Cloud Area” at the CEBIT computer fair.
These services enable software developers to [...]

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Citizen Science 2015 in San Jose CA

On the 11th and 12th February 2015, the Citizen Science 2015 conference took place in San Jose, California. Two busy days of presentations, symposia and workshops provided a great opportunity to learn about and discuss the latest developments in research and practice this field. Citizen science, which has been around for some time as an [...]

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Dear colleagues,
we are pleased to announce our session called “Quality analysis of Volunteered Geographic Information (VGI) towards effective use” at the 9th International Symposium on Spatial Data Quality (ISSDQ 2015), which will take place in Montpellier, France, from September 28th to October 3rd 2015. Please consider submitting and presenting your relevant research in the session. [...]

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As can be seen in the WebGL visualisation of the GPS data collected by the OSM contributors in Heidelberg (reported earlier in this blog), the quantity of recorded GPS tracks along an OSM highway features depends on the feature class. It has already been found before that the GPS data is not equally distributed among [...]

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Some time ago we reported about a new method for assessing spatial autocorrelation among points in social media datasets. A major contribution thereby is the ability of restricting the analysis to specific scales limited by both, an upper and a lower bound. The corresponding paper is now officially available online at IJGIS:
Westerholt, R., Resch, B., [...]

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