Centre de documentation
scientifique

Citizens as sensors for natural hazards: a VGI integration workflow / B. De Longueville in Geomatica, vol 64 n° 1 (March 2010)  

Public [article]  inGeomatica > vol 64 n° 1 (March 2010) . - pp 41 - 59 Titre : Citizens as sensors for natural hazards: a VGI integration workflow Type de document : Article/Communication Auteurs : B. De Longueville, Auteur ; G. Luraschi, Auteur ; P. Smits, Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : pp 41 - 59 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] données localisées des bénévoles [Termes IGN] fiabilité des données [Termes IGN] flux de travaux [Termes IGN] participation du public [Termes IGN] qualité des données [Termes IGN] risque naturel [Termes IGN] web 2.0 Résumé : (Auteur) Recent advances of the Internet, often subsumed under the term Web 2.0, have led to an unprecedented increase of contents created by non-specialist users. The term Volunteered Geographic Information (VGI) is now commonly used when such user-generated contents have an explicit reference to a geographic location. VGI has significant potential as a timely and cost-effective means to enhance our overall understanding of the Earth. However, integrating VGI into specialist-driven Information Systems is a major challenge, as it is often regarded as insufficiently structured, documented, or validated. In this paper, we address the research question of how the credibility of VGI can be increased, so that it becomes a valuable resource, within domains such as natural hazards. This is done by proposing a generic workflow that uses prior information about the phenomenon of interest and reasoning techniques to improve the reliability of the VGI, thus creating a useful source for scientific and technical investigation. This workflow has been developed for a particular case study: the use of pictures from the photo-sharing portal Flickr as a 'signal' that allows the pinpointing of recent flood events in the United Kingdom. A comparison of the work-flow's output with independent information provided by scientists and journalists about these floods is also presented in order to uncover some of the strengths and weaknesses of VGI in our case study. We conclude that the proposed workflow allows VGI to be turned into a reliable data source. Numéro de notice : A2010-264 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article DOI : 10.5623/geomat-2010-0005 En ligne : https://cdnsciencepub.com/doi/abs/10.5623/geomat-2010-0005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30458 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
035-2010011	RAB	Revue	Centre de documentation	En réserve L003	Disponible