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Tag Archive 'Quality'

The Conference on Spatial Information Theory (COSIT) is taking place this week in Santa Fe, USA.
This Tuesday our paper on “A Conceptual Quality Framework for Volunteered Geographic Information” by Andrea Ballatore and Alexander Zipf is being presented there.
It outlines new proxy measures to several facets of conceptual quality, including accuracy, granularity, completeness, consistency, compliance, and [...]

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During mid August and September, Amin Mobasheri had a short research visit to Institute of Mathematics and Computer Science (ICMC) at University of São Paulo, Brazil. Last week on 14th of September, he gave a presentation about “Open Geospatial Data Quality Assessment and Enrichment. The Case study of Routing and navigation services for people with limited [...]

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Volunteered Geographic Information (VGI) such as data derived from the OpenStreetMap (OSM) project is a popular data source for freely available geographic data. There is frequently a cause of concern regarding the quality and usability of such data. In addition to our former studies (further here) or complementing our OSM in GIScience Book in [...]

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The assessment of the quality of volunteered geographic information (VGI) is cornerstone to understand the fitness for purpose of VGI in many application domains. Most analyses focus on the geometric and positional quality, and only sporadic attention has been devoted to the interpretation of the data, i.e., the communication process through which consumers try to [...]

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Our AGILE workshop called RICH-VGI (enRICHment of volunteered geographic information (VGI): Techniques, practices and current state of knowledge) was held on June 9, 2015 in Lisbon as part of the 18th AGILE Conference on Geographic Information Science of the Association of Geographic Information Laboratories in Europe (AGILE) with comparatively a large number of participants.
The workshop [...]

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Since the launch of OpenStreetMap (OSM) project in 2004, due to its nature and objective in collecting data from volunteers which are not necessarily familiar with GIScience and data collection procedures, the quality of gathered information has always been a main concern for both research and industrial communities. Several research studies have been conducted to [...]

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Dear colleagues,
We are happy to inform you that the deadline for paper submission for almost all events at the ISPRS Geospatial Week 2015 is extended to 15 April 2015 in order to faclicitate a consistent logistics and because of several demands to extend the deadline.
This applies also to our session on “Quality analysis of Volunteered [...]

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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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As announced earlier in our blog, there are open thesis topics within the European project: CAP4Access. Heidelberg University’s GIScience Research Group is a project partner of CAP4ACCESS. Other project partners include UCL, Fraunhofer and sozialhelden.de with their wheelmap.org project.
The goal of CAP4Access project is to improve the accessibility of mobility-restricted people, in particular those who are wheelchair users. As all [...]

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In this weeks BrownBag talk at the UCSB Spatial Center Dr. Andrea Ballatore gave a nice overview about vandalism in user generated geographic information. The talk referred to his recent paper on “Defacing the Map: Cartographic Vandalism in the Digital Commons“. There he outlines a typology of different kinds of map-based vandalism through a qualitative [...]

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