Month: May 2018
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HeiGIT/GIScience @ISCRAM 2018 Rochester- Exchange of latest crisis management practice and innovative ideas near a natural wonder of the world
Rochester NY, a small city located at Lake Ontario, became a gathering place for the international ISCRAM community last week. Researchers and practitioners from over 20 countries presented their latest work, ideas and needs related to crisis management at the 15th ISCRAM conference. Crisis and humanitarian management being one of the main focuses of the…
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Ohsome for Street Network Analysis and Disaster Activation Monitoring
Disaster mapping activations that are supported by many volunteers with various levels of experience raise questions related to the quality of the provided Volunteered Geographic Information. Learning about the data quality that can be expected in a disaster activation helps to evaluate the quality and fitness for purpose of the OSM data. At the ISCRAM…
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Ohsome Nepal Dashboard supports admin boundary selection
The Ohsome Nepal Dashboard has new features to enhance its usability and functionality. The user can now easily select administrative areas of interest through a new map interface. Different administrative levels can be selected by zooming in and out and afterwards just clicking or tapping on that specific region. This convenience feature makes it much faster…
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This Monday HCE Talk on: Ökologische Dienstleistungen und Zielkonflikte von Landnutzungsentscheidungen (Dr. Lautenbach)
As a founding member of Heidelberg Center for the Environment (HCE) we want to share this important date of the HCE’s “Heidelberg Bridge” Colloquium series. This semester the Institute of Geography is involved with two presentations and one of these is from the GIScience group with Dr. Sven Lautenbach talking about his work on ecosystem…
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Colloquium on monitoring of rockfalls and post-seismic landslide patterns
We cordially invite everybody interested to our next open GIScience colloquium talk The speaker is Dr. Jack Williams Department of Geography, Durham University When: Monday 28.05.2018, 2:15 pm Where: INF 348, room 015 (Institute of Geography, Heidelberg University) Near-continuous monitoring of rockfalls and insights into post-seismic landslide patterns This talk focuses on two strands of research that…
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BuFaTa Mapathon HD – Spreading the Word about OpenStreetMap and Missing Maps
Last weekend Heidelberg was the host city of this semesters geography “BuFaTa” (Bundesfachschaftentagung). During this four day event student associations from Germany, Austria and Switzerland and their members came together to discuss, learn and spend time together. The event was organized by an excellent student team from Heidelberg. The disastermappers Heidelberg contributed to the BuFaTa by organising…
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Ohsome – a high level architectural overview of the OSM History Analytics platform
Recently we introduced the ohsome platform for OSM History Analytics. Now we want to give you a high-level overview of the ohsome platform and the components it consists of. Ohsome API The ohsome platform is based on a three-layers API architecture, where the flexibility, as well as the usage-complexity are increasing going from the top to…
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Identifying the Effects of Mobility Domains on Volunteered Geographical Information: Towards an Analytical Approach
The production of Volunteered Geographic Information (VGI) is a type of human behavior which emerges via direct and indirect interactions with the physical environments described by these data. The nature of these interactions and the extent to which they rely on physical presence in the mapped area may affect the quality of the resulting digital…
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VGI ALIVE workshop Draft Agenda is available – Join us @AGILE in Lund, Sweden
The organizers are happy to announce that list of accepted papers at the VGI ALIVE workshop are available. Therefore a prelimnary draft agenda of the workshop at AGILE 2018 in Lund has been posted. Looks like an interesting and promising programme! Stay tuned for further updates and join us for discussions and collaborative sessions in…
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Associating OpenStreetMap tags to CORINE land-cover classes using text and semantic similarity measures
With the aim of rapidly estimating the updated state of the CORINE land-cover map at the frequency with which the OpenStreetMap (OSM) dataset is edited and extended, we propose an approach for automatically associating widely used OSM tags to Level 1 and Level 2 CORINE land-cover classes. This association is probabilistic and is undertaken based…
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Enhancing Crowdsourced Classification on Human Settlements Utilizing Logistic Regression Aggregation and Intrinsic Context Factors
Among semi-automated methods and pre-processed data products, crowdsourcing is another tool which can help to collect information on human settlements and complement existing data, yet it’s accuracy is debated. Whereas the potential of crowdsourced datasets for training of machine learning algorithms has been explored recently, only few work has been done towards utilizing machine learning…