Results 1 to 10 of about 17,674 (128)

Highlighting Current Trends in Volunteered Geographic Information [PDF]

open access: yesISPRS 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
doaj   +3 more sources

OpenStreetMap – building data completeness visualization in terms of “Fitness for purpose” [PDF]

open access: yesAdvances 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
doaj   +1 more source

A Risk-Based Approach for Enhancing the Fitness of Use of VGI

open access: yesIEEE 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
doaj   +1 more source

Towards Development of a Real-Time Point Feature Quality Assessment Method for Volunteered Geographic Information Using the Internet of Things

open access: yesISPRS 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
doaj   +1 more source

Quality assessment of volunteered geographic information for outdoor activities: an analysis of OpenStreetMap data for names of peaks in Japan

open access: yesGeo-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
doaj   +1 more source

An Interactive platform for low-cost 3D building modeling from VGI data using convolutional neural network

open access: yesBig 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
doaj   +1 more source

IT Services and Crowdsourcing in Support of the Hellenic Cadastre: Advanced Citizen Participation and Crowdsourcing in the Official Property Registration Process

open access: yesISPRS International Journal of Geo-Information, 2020
Greece is one of the few European countries that has not yet a fully operating Cadastre at national coverage. Cadastral surveying and property registration have been completed only for about 8% of the Greek territory, which includes about 18% of the ...
George Mourafetis, Chryssy Potsiou
doaj   +1 more source

Enhancing DSS Exploitation Based on VGI Quality Assessment: Conceptual Framework and Experimental Evaluation

open access: yesSystems, 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

Segmentation based traversing-agent approach for road width extraction from satellite images using volunteered geographic information [PDF]

open access: yesApplied Computing and Informatics, 2021
We make use of the Volunteered Geographic Information (VGI) data to extract the total extent of the roads using remote sensing images. VGI data is often provided only as vector data represented by lines and not as full extent.
Prajowal Manandhar   +2 more
doaj   +1 more source

Economic Valuation of Vehicle-Grid Integration (VGI) in a Demand Response Application from Each Stakeholder’s Perspective

open access: yesEnergies, 2021
Recently, the use of electric vehicles in a power grid has been attracting attention. The success of vehicle-grid integration (VGI) requires the active participation of not only VGI service providers but also electric vehicle owners, utility companies ...
Yongma Moon   +4 more
doaj   +1 more source

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