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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

Towards the implementation of the European spatial data infrastructure: getting the process right / Lars Bernard (2004)  

Public contenu dans Agile 2004, 7th Agile Conference on Geographic Information Science, Heraklion (Greece), 29 April - 1 May 2004 / Fred Toppen (2004)   Titre : Towards the implementation of the European spatial data infrastructure: getting the process right Type de document : Article/Communication Auteurs : Lars Bernard, Auteur ; A. Annoni, Auteur ; Y. Kanellopoulos, Auteur ; P. Smits, Auteur Editeur : Association of Geographic Information Laboratories in Europe AGILE Année de publication : 2004 Conférence : AGILE 2004, 7th international conference on geographic information science 29/04/2004 01/05/2004 Heraklion Grèce Open access proceedings Importance : pp 33 - 39 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] implémentation (informatique) [Termes IGN] infrastructure européenne de données localisées [Termes IGN] portail [Termes IGN] service de géoinformation Résumé : (Auteur) There is wide agreement about the urgent need to start implementing the European Spatial Data Infrastructure (ESDI). First prototypes prove the technical feasibility of already available specifications and standards to realize distributed geodata bases and distributed geoinformation services that form the technical foundation upon which the ESDI must be built. This paper discusses the current technical obstacles and sketches the next steps needed to speed up the implementaion of the ESDI in reality. Numéro de notice : C2004-005 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Communication DOI : sans En ligne : https://agile-online.org/conference_paper/cds/agile_2004/papers/1-1-3_Bernard.pd [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=65016

Main problems in building European environmental spatial data / A. Annoni in International Journal of Remote Sensing IJRS, vol 24 n° 20 (October 2003)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 24 n° 20 (October 2003) . - pp 3887 - 3902 Titre : Main problems in building European environmental spatial data Type de document : Article/Communication Auteurs : A. Annoni, Auteur ; P. Smits, Auteur Année de publication : 2003 Article en page(s) : pp 3887 - 3902 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] infrastructure européenne de données localisées [Termes IGN] métadonnées [Termes IGN] métadonnées géographiques [Termes IGN] projection [Termes IGN] système d'information géographique [Termes IGN] système de référence géodésique [Termes IGN] Union Européenne Résumé : (Auteur) The Geographical Information & Geographical Information Systems (GI&GIS) project of the Joint Research Centre is actively involved in assisting in the creation of the European Spatial Data Infrastructure (ESDI), as well as in activities related to the conception, creation and harmonization of pan-European spatial databases relevant for the policies of the European Union (EU), mainly through the support and co-ordination of networks in various thematic fields. Remotely sensed datasets play an important role in the ESDI and it is argued that the creation of an ESDI will greatly impact the GI and the remote sensing communities alike. Hence the main objective of this paper is to make the remote sensing community familiar with the current developments at EU level. This paper also illustrates major issues related to the harmonization of existing national datasets or the creation of new ones having a European or pan-European extent. In particular, the following technical aspects are discussed : terrestrial reference systems, projection systems, core data definition and geospatial metadata. Numéro de notice : A2003-283 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/0143116031000103763 En ligne : https://doi.org/10.1080/0143116031000103763 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22578 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
080-03201	RAB	Revue	Centre de documentation	En réserve L003	Exclu du prêt