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Enhancing VGI application semantics by accounting for spatial bias [PDF]
Big Earth Data, 2019 Volunteered geographic information (VGI) is becoming an important source of geospatial big data that support many applications. The application semantics of VGI, i.e.
Guiming Zhang
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An Interactive platform for low-cost 3D building modeling from VGI data using convolutional neural network [PDF]
Big Earth Data, 2021 The applications of 3D building models are limited as producing them requires massive labor and time costs as well as expensive devices. In this paper, we aim to propose a novel and web-based interactive platform, VGI3D, to overcome these challenges. The
Hongchao Fan, Gefei Kong, Chaoquan Zhang
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Towards a Protocol for the Collection of VGI Vector Data [PDF]
ISPRS International Journal of Geo-Information, 2016 A protocol for the collection of vector data in Volunteered Geographic Information (VGI) projects is proposed. VGI is a source of crowdsourced geographic data and information which is comparable, and in some cases better, than equivalent data from ...
Peter Mooney +5 more
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IMPREMENTATION OF VGI-BASED GEOPORTAL FOR EMPOWERING CITIZEN’S GEOSPATIAL OBSERVATORIES RELATED TO URBAN DISASTER MANAGEMENT [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 The volunteered geospatial information (VGI) will be efficient and cost-effective method for generating and sharing large disasterrelated geospatial data.
S. Lee
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Cryptococcal meningitis due to Cryptococcus neoformans VNI in a koala (Phascolarctos cinereus) with progressive neurological disease. [PDF]
Aust Vet JNearly all cases of cryptococcosis in koalas are caused by Cryptococcus gattii species complex. A rare case of meningitis due to Cryptococcus neoformans VNI/AFLP1 (abbreviated VNI) is described in a koala with nasal colonisation by both species complexes.
Teh A +6 more
europepmc +2 more sources
OpenStreetMap – building data completeness visualization in terms of “Fitness for purpose” [PDF]
Advances in Geodesy and Geoinformation, 2023 The purpose of this article was to provide the user with information about the number of buildings in the analyzed OpenStreetMap (OSM) dataset in the form of data completeness indicators, namely the standard OSM building areal completeness index (C Index)
Sylwia Borkowska +2 more
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A Risk-Based Approach for Enhancing the Fitness of Use of VGI
IEEE Access, 2022 Volunteered Geographic Information (VGI) phenomena offer an alternative or supplement to the authoritative mechanism of geospatial data acquisition. It allows people without professional geospatial skills or knowledge to participate in the geospatial ...
Tarek Sboui, Saida Aissi
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ISPRS International Journal of Geo-Information, 2021 One of the most important challenges of volunteered geographic information (VGI) is the quality assessment. Existing methods of VGI quality assessment, either assess the quality by comparing a reference map with the VGI map or deriving the quality from ...
Sepehr Honarparvar +3 more
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Geo-spatial Information Science, 2023 Geographical studies of outdoor activities have increased in recent years with the rise in popularity of these activities worldwide, including in Japan. Volunteered geographic information (VGI) is a key tool for organizing outdoor activities as it offers
Jun Yamashita +3 more
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Systems, 2023 The latest advances in spatial information technology have led to the emergence of Volunteered Geographic Information (VGI) as enrichment to existing spatial data sources.
Tarek Sboui, Saida Aissi
doaj +1 more source