Results 81 to 90 of about 17,693 (144)

The Spatial-Comprehensiveness (S-COM) Index: Identifying Optimal Spatial Extents in Volunteered Geographic Information Point Datasets

ISPRS International Journal of Geo-Information, 2020
Social media and other forms of volunteered geographic information (VGI) are used frequently as a source of fine-grained big data for research.
Haydn Lawrence, Colin Robertson, Rob Feick, Trisalyn Nelson   +3 more
doaj   +1 more source

Exploiting the Potential of VGI Metadata to Develop A Data-Driven Framework for Predicting User’s Proficiency in OpenStreetMap Context

ISPRS International Journal of Geo-Information, 2019
Volunteered geographic information (VGI) encourages citizens to contribute geographic data voluntarily that helps to enhance geospatial databases. VGI’s significant limitations are trustworthiness and reliability concerning data quality due to the ...
Gangothri Rajaram, KR Manjula
doaj   +1 more source

Evolutionary Dynamics and Policy Coordination in the Vehicle–Grid Interaction Market: A Tripartite Evolutionary Game Analysis

Mathematics
This study introduces a novel tripartite evolutionary game model to analyze the strategic interactions among electric vehicle (EV) aggregators, local governments, and EV users in vehicle–grid interaction (VGI) markets.
Qin Shao, Ying Lyu, Jian Cao
doaj   +1 more source

A Guidance Tool for VGI Contributors [PDF]

, 2015
Many people are familiar with the VGI project OpenStreetMap (OSM), but there are many other projects that are not as well known to volunteers. What is needed is a tool that can help volunteers match their motivations, interests and background to ...
Antoniou, Vyron, Fonte, Cidália Costa, Minghini, Marco, See, Linda, Skopeliti, Andriani   +4 more
core  

A Survey of Volunteered Open Geo-Knowledge Bases in the Semantic Web

, 2013
Over the past decade, rapid advances in web technologies, coupled with innovative models of spatial data collection and consumption, have generated a robust growth in geo-referenced information, resulting in spatial information overload.
A. Ballatore, A. Buccella, A. Burton-Jones, A. Gangemi, A. Gore, A. Gómez-Pérez, A. Polleres, A. Schwering, A. Turner, B. Smith, C. Bizer, C. Jones, C. Keßler, C. Keßler, C. Manning, C.B. Jones, D. Buscaldi, D. Coleman, D. Nadeau, D. Strasunskas, D. Sui, F. Baader, F. Fonseca, F. Giunchiglia, F. Giunchiglia, F. Harvey, F.. Gey, F.J. Lopez-Pellicer, G. Bordogna, G. Fu, G. Tré De, G. Weikum, J. Giles, J. Goodwin, J. Howe, J. Leveling, K. Janowicz, K. Janowicz, L. Vaccari, L.L. Hill, M. Egenhofer, M. Goodchild, M. Goodchild, M. Grassi, M. Haklay, M. Haklay, M. Haklay, M. Kitsuregawa, M. Lutz, N. Choi, N. Guarino, N. Guarino, P. Burrough, P. Magnus, P. Roget, P. Singh, P.D. Smart, R. Fouad, R. Rada, S. Auer, S. Auer, S. Freitas, S. Hahmann, S. Overell, S. Schade, S. Staab, S. Vaid, S. Winter, T. Berners-Lee, T. Mandl, T. Mandl   +70 more
core   +1 more source

VGI and crowdsourced data credibility analysis using spam email detection techniques

International Journal of Digital Earth, 2018
Volunteered geographic information (VGI) can be considered a subset of crowdsourced data (CSD) and its popularity has recently increased in a number of application areas.
Saman Koswatte, Kevin McDougall, Xiaoye Liu   +2 more
doaj   +1 more source

Numerical classification of soils and its application in survey [PDF]

, 1977
Numerical classification of soils was studied with emphasis on methodology and feasibility in survey. A procedure was designed for construction of classes sufficiently homogeneous in terms of relevant properties and handlable by the surveyor.
Gruijter, J.J., de
core  

IL FENOMENO VOLUNTEERED GEOGRAPHIC INFORMATION

GEOmedia, 2014
The contribution addresses the phenomenon of Voluntereed Geographic Information explaining these new and burgeoning sources of information offers multidisciplinary scientists an unprecedented opportunity to conduct research on a variety of topics at ...
Flavio Lupia, Cristina Capineri
doaj  

VGI and crisis mapping in an emergency situation. Comparison of four case studies: Haiti, Kibera, Kathmandu, Centre Italy

GEOmedia, 2017
Over the last decade new voluntary mapping patterns are commonly known as VGI – Volunteered Geographic Information – that is, geo-localized information created voluntarily and consciously by web users.
Lucia Saganeiti, Federico Amato, Beniamino Murgante, Gabriele Nolè   +3 more
doaj  

Integrating VGI and 2D hydraulic models into a data assimilation framework for real time flood forecasting and mapping

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
doaj   +1 more source