Tag: Quality

European Handbook of Crowdsourced Geographic Information

Recently, a new open access handbook edited by Capineri, et.al and supported by the European Commission – COST Action IC1203 (ENERGIC) has been published. This book focuses on the study of the remarkable new source of geographic information that has become available in the form of user-generated content accessible over the Internet through mobile and…

2016-08-30
Defining Fitness-for-Use for Crowdsourced Points of Interest (POI)

Due to the advent of Volunteered Geographic Information (VGI), large datasets of user-generated Points of Interest (POI) are now available. As with all VGI, however, there is uncertainty concerning data quality and fitness-for-use. Currently, the task of evaluating fitness-for-use of POI is left to the data user, with no guidance framework being available which is…

2016-08-27
Two new DFG projects on VGI, OSM Quality and Social Media Analysis

recently we were happy to receive the notification that two new research projects will be funded by the Deutsche Forschungsgemeinschaft (DFG) the German main funding agency for fundamental research. Both projects belong to the DFG Priority Programme “Volunteered Geographic Information: Interpretation, Visualisation and Social Computing“ (SPP 1894). The two projects are: A:) IntrisicOSMquality: A framework…

2016-07-26
Volunteered geographic (mis)information? Measuring quality in crowdsourced maps – Colloquium Presentation by Andrea Ballatore this Monday

We invite anybody interested to the following open talk in our GIScience colloquium series this Monday: Volunteered geographic (mis)information? Measuring quality in crowdsourced maps Dr. Andrea Ballatore Dept of Geography, Environment and Development Studies Birkbeck, University of London Lecturer in GIS and Big Data Analytics Mon, June 27, 2016, 2.15 pm, Institute of Geography, Heidelberg…

2016-06-26
WeGovNow WebPage is live – Towards #WeGovernment

The WeGovNow Towards #WeGovernment: Collective and participative approaches for addressing local policy challenges Establishing citizens as partners in the delivery of public services. A new type of citizen engagement platform, expanding the viability of and capacity for citizen coproduction in the public sector. WeGovNow and its 12 partner organisations are building upon earlier research and…

2016-06-21
A conceptual model for quality assessment of VGI for the purpose of flood management

Volunteered Geographic Information (VGI) has emerged as a potential source of geographic information for different domains. Despite the many advantages associated with it, such information lacks of quality assurance, since it is provided by individuals with different motivations and backgrounds. In response to this, several methods have been proposed to assess the quality of volunteered…

2016-06-09
Guided Classification System for Conceptual Overlapping Classes in OpenStreetMap

The increased development of Volunteered Geographic Information (VGI) and its potential role in GIScience studies raises questions about the resulting data quality. Several studies address VGI quality from various perspectives like completeness, positional accuracy, consistency, etc. They mostly have consensus on the heterogeneity of data quality. The problem may be due to the lack of…

2016-06-08
Assessing Data Quality of OSM Buildings and Landuse Revisited :: GIScience Heidelberg contributes to 8th Dresden Land Use Symposium

On the May 11 and 12, the 8. Dresdener Flächennutzungssymposium (the 8th Symposium of development, monitoring and usages of landuse Dresden) took place in Dresden, Germany. The symposium aims to bring together industry, academy and local government, in order to demonstrate and exchange latest developments in methods, tools and software for the management of landuse…

2016-05-18
Amateur or Professional: Assessing the Expertise of Major Contributors in OpenStreetMap Based on Contributing Behaviors

Volunteered geographic information (VGI) projects, such as OpenStreetMap (OSM), provide an alternative way to produce geographic data. Research has showed that the resulting data in some areas are of decent quality, which guarantees their usability in various applications. Though these achievements are normally attributed to the huge heterogeneous community mainly consisting of amateurs, it is…

2016-02-25
A Conceptual VGI Quality Framework – chapter published in ‘Spatial Information Theory’

Now the book “Spatial Information Theory” has been published in electronic and print format. It includes full papers from the COSIT – CONFERENCE ON SPATIAL INFORMATION THEORY XII 2015, including our paper: Ballatore, A. and Zipf, A. (2015): A Conceptual Quality Framework for Volunteered Geographic Information. In: Fabrikant, S.I., Raubal, M., Bertolotto, M., Davies, C.,…

2016-01-29
A Conceptual Quality Framework for Volunteered Geographic Information @ COSIT 2015 this Tuesday

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,…

2015-10-12
Talk on OpenStreetMap data quality at University of São Paulo, Brazil

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…

2015-09-26