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Tag Archive 'VGI'

The Special Issue on “Crowdsourced Mapping” of the international journal “Cartography and Geographic Information Science” is online. Here you can read the editorial.
Further this issue includes our paper on Deriving incline values for street networks from voluntarily collected GPS traces. When producing optimal routes through an environment, considering the incline of surfaces can be of [...]

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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 [...]

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VGI-Analytics 2017 is the 4th workshop in a series of AGILE pre-conference workshops
Volunteered Geographic Information (VGI) and social media data have become part of our everyday lives over the past few years. Whereas in the early beginnings of crowd-sourced data the collection occurred primarily to isolated, individual platforms, contribution patterns are now beginning to be more [...]

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We cordially invite all interested to our forthcoming talk in the GIScience colloquium next Monday, January 16, on agricultural pest management solutions based on pest observations from farmers. Dr. Yingwei Yan reports on how sensemaking algorithms which can be used to evaluate this kind of volunteered geographic information, and to make forecasts of pest infestations provided [...]

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cfp: VGI-Analytics 2017
Volunteered Geographic Information (VGI): Integration, ANALYsis, applICationS
Tuesday, 9th May 2017, Wageningen University, The Netherlands at AGILE 2017

VGI-Analytics 2017 is the [...]

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On Thursday, 08.12.2016, a Christmas mapping party took place at the Geographical Institute of Heidelberg University. Karakol, a city in the Kyrgyz Republic was herein mapped in cooperation with the German Research Centre for Geosciences (GFZ-Potsdam).
Supported by the World Bank, the Bishkek-based Central Asian Institute of Applied Science (CAIAG) and the GFZ [...]

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Recently some of our work on intrinsic VGI quality analysis has been published. In this work we propose a framework to assess the quality of OSM building footprints data without using any reference data. More specifically, the OSM history data will be examined regarding the development of attributes, geometries and positions of building footprints. In [...]

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Keynote at GEOINFO 2016 Brazil

This week Alexander Zipf was giving an invited keynote presentation at the 18th Geoinfo Conference in Campos do Jordão, São Paulo, Brazil.
The GEOINFO conferences aim to bring together leading GIScience and spatial database researchers, to present to the local community a perspective of the state-of-the-art in the area. Past speakers have included Max [...]

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Successfull PhD Defence by Yingwei YAN

Our recent team member Dr. Yingwei YAN successfully defended his PhD thesis this very week.
We do congratulate him most cordially!
The thesis was conducted at the National University of Singapore at the Department of Geography before he joined the GIScience Heidelberg team. Yingwei worked for example on using fuzzy set theory to assure the [...]

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COST action IC1203 is a European Network Exploring Research into Geospatial Information Crowdsourcing: software and methodologies for harnessing geographic information from the crowd (ENERGIC). The action has been greatly active in the past 3 years and is now delivering the results via their website as well as their Youtube channel.
One of the outputs of this action [...]

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