Results 21 to 30 of about 19,818 (257)
Global warming impact on the expansion of fundamental niche of Cryptococcus gattii VGI in Europe [PDF]
Environmental Microbiology Reports, 2021 In the present study, we analysed how geographical distribution of the fungal pathogen Cryptococcus gattii VGI in Europe and Mediterranean area has evolved in the last four decades based on the climatic changes, and we tried to predict the scenario for ...
M. Cogliati
semanticscholar +2 more sources
A Semantic Expansion Model for VGI Retrieval [PDF]
ISPRS International Journal of Geo-Information, 2019 OpenStreetMap (OSM) is a representative volunteered geographic information (VGI) project. However, there have been difficulties in retrieving spatial information from OSM. Ontology is an effective knowledge organization and representation method that is often used to enrich the search capabilities of search systems.
Tao Sun +4 more
openalex +4 more sources
Motivating and Sustaining Participation in VGI [PDF]
, 2017 Volunteers are the key component in the collection of Volunteered Geographic Information (VGI), so what motivates their participation, what strategies work in recruitment and how sustainability of participation can be achieved are key questions that need
Brovelli, M., Fritz, S., See, L.
core +5 more sources
A Century of French Railways: The Value of Remote Sensing and VGI in the Fusion of Historical Data [PDF]
ISPRS Int. J. Geo Inf., 2021 Providing long-term data about the evolution of railway networks in Europe may help us understand how European Union (EU) member states behave in the long-term, and how they can comply with present EU recommendations.
Robert Jeansoulin
semanticscholar +2 more sources
CLASSIFICATION OF BUILDING FUNCTION USING AVAILABLE SOURCES OF VGI [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 Abstract. This paper examines the feasibility of using data from OpenStreetMap (OSM), Facebook and Foursquare as a source of information on the function of buildings. Such information is rarely openly available and if available, would vary between cities by nomenclature, making comparisons between places difficult.
Cidália C. Fonte +4 more
openalex +8 more sources
Centaur VGI: A Hybrid Human–Machine Approach to Address Global Inequalities in Map Coverage [PDF]
Annals of the American Association of Geographers, 2020 Despite advances in mapping technologies and spatial data capabilities, global mapping inequalities are not declining. Inequalities in the coverage, quality, and currency of mapping persist, with significant gaps in remote and rural parts of the Global ...
Jonathan J. Huck +4 more
semanticscholar +2 more sources
Challenges in VGI for scientific projects [PDF]
, 2016 Volunteered Geographic Information (VGI) is a recent trend that has been successfully used in order to collect and share geographic information. This method is of interest for scientists who are in need of data and who want to get people involved in their cause.
Jens Ingensand +6 more
openalex +3 more sources
VGI FOR LAND ADMINISTRATION – A QUALITY PERSPECTIVE [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 Abstract. Since the use of volunteered geographic information (VGI) or crowd sourced data (Goodchild, 2007) became more common, several people proposed the use of such methods of data collection for various fields. Success stories were Wikipedia encyclopaedia and OpenStreetMap (OSM), but also using VGI in land administration has been proposed.
Gerhard Navratil, Andrew U. Frank
openalex +5 more sources
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
MEASURES AND INDICATORS OF VGI QUALITY: AN OVERVIEW [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 Abstract. The evaluation of VGI quality has been a very interesting and popular issue amongst academics and researchers. Various metrics and indicators have been proposed for evaluating VGI quality elements. Various efforts have focused on the use of well-established methodologies for the evaluation of VGI quality elements against authoritative data ...
Vyron Antoniou, Andriani Skopeliti
openalex +5 more sources