Urban monitoring using NetKDE and VGI: network based kernel density estimation on volunteered geographic information applied to Baghdad, Iraq [PDF]
International Conference Virtual City and Territory (7è: 2011: Lisboa), 2011 This paper presents a methodology for urban monitoring using volunteered geographic information (VGI) and journalism data Iraq war logs with network based kernel density estimation (NetKDE). It investigates, using spatio-temporal analysis, the evolution of urban events in Baghdad between 2004 and 2009.
Lachance-Bernard, Nicolas +2 more
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Peran Sistem Volunteered Geographic Information (VGI) Sistem dalam Pengurangan Risiko Bencana: Konsep dan Implementasi [PDF]
Jurnal Alami : Jurnal Teknologi Reduksi Risiko Bencana, 2020 There have been a lot of geospatial technologies implemented to support disaster management into a more effective way and achieve disaster risk reduction. One of these technologies is the use Volunteered Geographic Information (VGI). VGI refers to the volunteered activities by anyone to create geographic information.
Dian Nuraini Melati
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The Life Cycle of Volunteered Geographic Information (VGI) Contributors: the OpenStreetMap Example [PDF]
International Conference on GIScience Short Paper Proceedings, 2016 GIScience 2016 Short Paper Proceedings The Life Cycle of Volunteered Geographic Information (VGI) Contributors: the OpenStreetMap Example D. Begin 1 , R. Devillers 1,2 , S. Roche 2 Department of Geography, Memorial University, St. John’s (NL), Canada Email:{d.begin; rdeville}@mun.ca Centre de recherche en geomatique, Universite Laval, Quebec (QC ...
Begin, Daniel +2 more
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Highlighting Current Trends in Volunteered Geographic Information [PDF]
ISPRS International Journal of Geo-Information, 2017 Volunteered Geographic Information (VGI) is a growing area of research. This Special Issue aims to capture the main trends in VGI research based on 16 original papers, and distinguishes between two main areas, i.e., those that deal with the ...
David Jonietz +3 more
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Recent Developments and Future Trends in Volunteered Geographic Information Research: The Case of OpenStreetMap [PDF]
Future Internet, 2014 User-generated content (UGC) platforms on the Internet have experienced a steep increase in data contributions in recent years. The ubiquitous usage of location-enabled devices, such as smartphones, allows contributors to share their geographic ...
Pascal Neis, Dennis Zielstra
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, 2014 Volunteered Geographic Information (VGI) represents a valuable source of information. At the same time this data presents new data quality issues such as credibility. In this paper, we investigate the integration of VGI in Spatial OLAP (SOLAP) systems, which allow analyzing huge volume of geographic datasets. By means of a real case study, we highlight
Bimonte, Sandro +3 more
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Validating the Quality of Volunteered Geographic Information (VGI) for Flood Modeling of Hurricane Harvey in Houston, Texas [PDF]
Hydrology, 2023 The primary objective of this study was to examine the quality of volunteered geographic information (VGI) data for flood mapping of Hurricane Harvey. As a crowdsourcing platform, the U-Flood project mapped flooded streets in the Houston metro area. This research examines the following: (1) If there are any significant differences in water depth (WD ...
T. Edwin Chow +2 more
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Using volunteered geographic information (VGI) in design-based statistical inference for area estimation and accuracy assessment of land cover [PDF]
Remote Sensing of Environment, 2018 Volunteered Geographic Information (VGI) offers a potentially inexpensive source of reference data for estimating area and assessing map accuracy in the context of remote-sensing based land-cover monitoring. The quality of observations from VGI and the typical lack of an underlying probability sampling design raise concerns regarding use of VGI in ...
Stehman, S.V. +3 more
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Privacy-Aware Visualization of Volunteered Geographic Information (VGI) to Analyze Spatial Activity: A Benchmark Implementation [PDF]
ISPRS International Journal of Geo-Information, 2020 Through volunteering data, people can help assess information on various aspects of their surrounding environment. Particularly in natural resource management, Volunteered Geographic Information (VGI) is increasingly recognized as a significant resource, for example, supporting visitation pattern analysis to evaluate collective values and improve ...
Alexander Dunkel +2 more
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Extraction of Pluvial Flood Relevant Volunteered Geographic Information (VGI) by Deep Learning from User Generated Texts and Photos [PDF]
ISPRS International Journal of Geo-Information, 2018 In recent years, pluvial floods caused by extreme rainfall events have occurred frequently. Especially in urban areas, they lead to serious damages and endanger the citizens’ safety. Therefore, real-time information about such events is desirable.
Yu Feng, Monika Sester
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