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An interdisciplinary frame for understanding volunteered geographic information / N. Budhathoki in Geomatica, vol 64 n° 1 (March 2010)  

Public [article]  inGeomatica > vol 64 n° 1 (March 2010) . - pp 11 - 26 Titre : An interdisciplinary frame for understanding volunteered geographic information Type de document : Article/Communication Auteurs : N. Budhathoki, Auteur ; Z. Nedovic-Budic, Auteur ; B. Bruce, Auteur Année de publication : 2010 Article en page(s) : pp 11 - 26 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] analyse de données [Termes IGN] données localisées des bénévoles [Termes IGN] grand public [Termes IGN] interactivité [Termes IGN] participation du public [Termes IGN] utilisateur Résumé : (Auteur) A conceptual framework for volunteered geographic information (VGI) is proposed, drawing from research in several related fields including volunteering, leisure study, and social production of knowledge. Although these research areas have not been explored extensively within the field of geographic information science, they offer conceptual tools for understanding VGI issues such as the motivation to contribute geo-graphic information online. Through its depiction of various VGI elements and their interrelationships, the framework provides a good starting point for future research. The framework is employed to analyze par-ticipants' motivation to contribute geographic information. Potential motivational factors, drawn from the literature, are classified as intrinsic or extrinsic. The framework and subsequent analysis make it possible to situate VGI research within the larger study of social production of knowledge, but also to articulate the special characteristics of geographic information. Numéro de notice : A2010-262 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article DOI : 10.5623/geomat-2010-0003 En ligne : https://cdnsciencepub.com/doi/abs/10.5623/geomat-2010-0003 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30456 [article]

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Volunteered geographic information to authoritative databases: linking contributor motivations to program characteristics / David Coleman in Geomatica, vol 64 n° 1 (March 2010)  

Public [article]  inGeomatica > vol 64 n° 1 (March 2010) . - pp 27 - 39 Titre : Volunteered geographic information to authoritative databases: linking contributor motivations to program characteristics Type de document : Article/Communication Auteurs : David Coleman, Auteur ; B. Sabone, Auteur ; N. Nkhwanana, Auteur Année de publication : 2010 Article en page(s) : pp 27 - 39 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] analyse comparative [Termes IGN] base de données thématiques [Termes IGN] classement [Termes IGN] données localisées des bénévoles [Termes IGN] participation du public Résumé : (Auteur) This paper builds on research by the senior author in reviewing and classifying both VGI contributors and the nature of their contributions. Drawing upon lessons learned in other types of user contribution systems, the authors discuss and propose recommendations as to how a deeper understanding of contributor motivations and the contributions themselves may influence the design of more sustainable re-engineered mapping programs in future. They then use these recommendations to compare and contrast three programs or initiatives driven by volunteered contributions: the State of Victoria's Notification and Editing Service in Australia, the National Map Corps Initiative of the United States Geological Survey, and TomTom's MapShare™ Service. The paper concludes with brief descriptions of related VGI research also currently underway at the University of New Brunswick. Numéro de notice : A2010-263 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article DOI : 10.5623/geomat-2010-0004 En ligne : https://cdnsciencepub.com/doi/abs/10.5623/geomat-2010-0004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30457 [article]

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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]

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Perceptions of virtual globes, volunteered geographical information and spatial data infrastructures / A. Cooper in Geomatica, vol 64 n° 1 (March 2010)  

Public [article]  inGeomatica > vol 64 n° 1 (March 2010) . - pp 73 - 88 Titre : Perceptions of virtual globes, volunteered geographical information and spatial data infrastructures Type de document : Article/Communication Auteurs : A. Cooper, Auteur ; Serena Coetzee, Auteur ; D. Kourie, Auteur Année de publication : 2010 Article en page(s) : pp 73 - 88 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] analyse de données [Termes IGN] données localisées des bénévoles [Termes IGN] globe virtuel [Termes IGN] infrastructure mondiale des données localisées [Termes IGN] participation du public [Termes IGN] sondage statistique [Termes IGN] web 2.0 Résumé : (Auteur) The Internet has spawned the development of virtual communities or virtual social networks which generate and share information with one another, and with the public at large. Volunteered geographical information (VGI) refers to user-generated content that is made available as base data on public mapping websites or as third party data overlaid on virtual globes such as Google Earth and NASA World Wind. Several attempts have been made to determine and categorise what motivates the contributors of VGI. However, while the contributors themselves might generally understand VGI, this is not necessarily the case amongst geographical information professionals at large. We used a questionnaire to explore this by gathering data on the perceptions held by geographical information professionals of virtual globes, VGI, and spatial data infrastructures (SDI). These perceptions are important because they influence how VGI and virtual globes will be used in the future for more formal SDI environments of official mapping agencies and other official custodians of spatial data. The questionnaire was administered at a meeting in Addis Ababa, Ethiopia, in April 2009 and at another in Ekurhuleni, South Africa, in June 2009. The results are reported on here. Some of the results confirm previous research, while others raise questions that warrant further research. Numéro de notice : A2010-265 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article DOI : 10.5623/geomat-2010-0007 En ligne : https://cdnsciencepub.com/doi/abs/10.5623/geomat-2010-0007 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30459 [article]

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