Results 21 to 30 of about 19,531 (263)
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
doaj +3 more sources
A data fusion-based framework to integrate multi-source VGI in an authoritative land use database
International Journal of Digital Earth, 2021 Updating an authoritative Land Use and Land Cover (LULC) database requires many resources. Volunteered geographic information (VGI) involves citizens in the collection of data about their spatial environment. There is a growing interest in using existing
Lanfa Liu +4 more
doaj +2 more sources
Mapping with Stakeholders: An Overview of Public Participatory GIS and VGI in Transport Decision-Making [PDF]
ISPRS Int. J. Geo Inf., 2019 Transport decision-making problems are typically spatially based and involve a set of feasible alternatives with multiple evaluation criteria. Besides, transport decisions affect citizens’ quality of life, as well as specific interests of general ...
Nadia Giuffrida +3 more
openalex +2 more sources
A representativeness-directed approach to mitigate spatial bias in VGI for the predictive mapping of geographic phenomena [PDF]
International Journal of Geographical Information Science, 2019 Volunteered geographic information (VGI) contains valuable field observations that represent the spatial distribution of geographic phenomena. As such, it has the potential to provide regularly updated low-cost field samples for predictively mapping the ...
Guiming Zhang, A‐Xing Zhu
openalex +2 more sources
, 2017 The concept of Volunteered Geographic Information (VGI) is often exemplified by the mapping of features in OpenStreetMap (OSM), yet there are many other sources of VGI available. Some VGI is very focused on the creation of map-based products, while in other applications location is simply one attribute that is routinely collected, due to the ...
Linda See +5 more
openalex +5 more sources
The role of VGI and PGI in supporting outdoor activities [PDF]
Applied Ergonomics, 2012 This paper explored the question of how volunteered and professional geographic information (VGI and PGI) can be used together in an outdoor recreation context. In particular, consideration is given to what makes each information source valuable to the user, and how this can be used to help developers of GIS provide more useful, usable and satisfying ...
Chris Parker +2 more
openalex +4 more sources
GEOmedia, 2016 Availability of up-to-date geographic datasets, including the information voluntarily created by ordinary people, is crucial for disaster management in areas affected by catastrophic events and humanitarian crises. OpenStreetMap (OSM) is the most popular
Flavio Lupia +4 more
doaj +3 more sources
Data trustworthiness and user reputation as indicators of VGI quality
Geo-spatial Information Science, 2018 Volunteered geographic information (VGI) has entered a phase where there are both a substantial amount of crowdsourced information available and a big interest in using it by organizations.
Paolo Fogliaroni +2 more
doaj +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
doaj +1 more source