Geographic proximity and homophily effects drive social interactions within VGI communities: an example of iNaturalist [PDF]
International Journal of Digital Earth, 2023 Social interactions among online community members contributing to volunteered geographic information (VGI) are a key element and often crucial to VGI project success.
Guiming Zhang, Xi Gong, Di Zhu
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Integrating VGI and 2D hydraulic models into a data assimilation framework for real time flood forecasting and mapping [PDF]
Geo-spatial Information Science, 2019 Crowdsourced data can effectively observe environmental and urban ecosystem processes. The use of data produced by untrained people into flood forecasting models may effectively allow Early Warning Systems (EWS) to better perform while support decision ...
Antonio Annis, Fernando Nardi
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A Risk-Based Approach for Enhancing the Fitness of Use of VGI [PDF]
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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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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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 ...
Massimo Cogliati
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VGI and Satellite Imagery Integration for Crisis Mapping of Flood Events [PDF]
ISPRS Int. J. Geo Inf., 2022 Timely mapping of flooded areas is critical to several emergency management tasks including response and recovery activities. In fact, flood crisis maps embed key information for an effective response to the natural disaster by delineating its spatial ...
Alberto Vavassori +3 more
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VGI3D: an Interactive and Low-Cost Solution for 3D Building Modelling from Street-Level VGI Images [PDF]
Journal of Geovisualization and Spatial Analysis, 2021 Applications in smart cities are inseparable from the usage of three-dimensional (3D) building models. However, the cost of generating and constructing 3D building models with semantic information is high both in time and in labour. To solve this problem,
Chaoquan Zhang, Hongchao Fan, Gefei Kong
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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
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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 ...
Jonny Huck +4 more
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The V in VGI: Citizens or Civic Data Sources
Urban Planning, 2016 Volunteered geographic information (VGI), delivered via mobile and web apps, offers new potentials for civic engagement. If framed in the context of open, transparent and accountable governance then presumably VGI should advance dialogue and consultation
Suthee Sangiambut, Renee Sieber
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