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Projet VOTERR, une aide à la décision multicritère appliquée au développement d’une région / Mathieu Ehinger in Revue internationale de géomatique, vol 23 n° 1 (mars - mai 2013)
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Titre : Projet VOTERR, une aide à la décision multicritère appliquée au développement d’une région Titre original : The VOTERR Project. A multicriteria decision aid approach for regional development Type de document : Article/Communication Auteurs : Mathieu Ehinger, Auteur ; Dominique Bollinger, Auteur ; Roland Prélaz-Droux, Auteur ; Alexandre Repetti, Auteur ; Christine Leu, Auteur Année de publication : 2013 Article en page(s) : pp 71 - 94 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] aménagement du territoire
[Termes IGN] analyse multicritère
[Termes IGN] approche participative
[Termes IGN] outil d'aide à la décision
[Termes IGN] utilisation du sol
[Termes IGN] Vaud (Suisse)Résumé : (Auteur) Les communes vaudoises sont légalement contraintes à limiter leur surface de zones à bâtir. Par une approche de comparaison multicritère négociée, l’étude VOTERR décrite dans cet article vise à unifier celles constituant le Vallon du Nozon autour d’un projet leur permettant d’optimiser la répartition et la réorganisation des surfaces de zones à bâtir. Numéro de notice : A2013-197 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3166/rig.23.71-94 En ligne : https://doi.org/10.3166/rig.23.71-94 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32335
in Revue internationale de géomatique > vol 23 n° 1 (mars - mai 2013) . - pp 71 - 94[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 047-2013011 SL Revue Centre de documentation Revues en salle Disponible Spatial patterns and demographic indicators of effective social media content during the Horsethief Canyon fire of 2012 / Joshua Kent in Cartography and Geographic Information Science, vol 40 n° 2 (March 2013)
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Titre : Spatial patterns and demographic indicators of effective social media content during the Horsethief Canyon fire of 2012 Type de document : Article/Communication Auteurs : Joshua Kent, Auteur ; Henry T. Cappello Jr, Auteur Année de publication : 2013 Article en page(s) : pp 78 - 89 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse spatiale
[Termes IGN] autocorrélation spatiale
[Termes IGN] données localisées
[Termes IGN] données localisées des bénévoles
[Termes IGN] fiabilité des données
[Termes IGN] gestion de crise
[Termes IGN] incendie
[Termes IGN] indicateur démographique
[Termes IGN] réseau social
[Termes IGN] risque majeurRésumé : (Auteur) A significant challenge during any emergency response scenario is the timely compilation of actionable data from disparate sources. Although numerous strategies exist, crisis mapping techniques have emerged as effective tools for synthesizing and visualizing event specific data when establishing situational awareness. User generated content (UGC) voluntarily submitted through social networking outlets (e.g., Twitter, Instagram, Flickr, and others) are increasingly being consumed and mined for actionable data (e.g., Goodchild 2007; Elwood, Goodchild, and Sui 2012). Despite its apparent value as a rich and instantaneous source of actionable content, little research has emerged examining the underlying demographic characteristics that are likely to produce effective crowdsourced content during a crisis. Accordingly, this study collected and synthesized user generated data extracted from multiple social networks during the Horsethief Canyon Fire that occurred near Jackson, Wyoming, in September 2012. The spatial distribution of wildfire and non-wildfire specific UGC were compared to confirm the presence of a social networking user base that contributed to situational awareness. Regression analysis was used to identify relevant demographic characteristics that reflect the portion of the impacted community that will voluntarily contribute meaningful data about the fire. The preliminary findings suggest that emergency responders can use these techniques to quickly and efficiently assess the efficacy of mining actionable data from social media in a given community. Recommendations for additional research are discussed and provided. Numéro de notice : A2013-744 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article DOI : 10.1080/15230406.2013.776727 En ligne : https://doi.org/10.1080/15230406.2013.776727 Format de la ressource électronique : url Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32880
in Cartography and Geographic Information Science > vol 40 n° 2 (March 2013) . - pp 78 - 89[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 032-2013021 RAB Revue Centre de documentation En réserve L003 Disponible Spatial, temporal, and socioeconomic patterns in the use of Twitter and Flickr / Linna Li in Cartography and Geographic Information Science, vol 40 n° 2 (March 2013)
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Titre : Spatial, temporal, and socioeconomic patterns in the use of Twitter and Flickr Type de document : Article/Communication Auteurs : Linna Li, Auteur ; Michael F. Goodchild, Auteur ; Bo Xu, Auteur Année de publication : 2013 Article en page(s) : pp 61 - 77 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse de données
[Termes IGN] analyse socio-économique
[Termes IGN] analyse spatiale
[Termes IGN] Californie (Etats-Unis)
[Termes IGN] données localisées des bénévoles
[Termes IGN] Etats-Unis
[Termes IGN] partage de données localisées
[Termes IGN] réseau social
[Termes IGN] TwitterRésumé : (Auteur) Online social networking and information sharing services have generated large volumes of spatio-temporal footprints, which are potentially a valuable source of knowledge about the physical environment and social phenomena. However, it is critical to take into consideration the uneven distribution of the data generated in social media in order to understand the nature of such data and to use them appropriately. The distribution of footprints and the characteristics of contributors indicate the quantity, quality, and type of the data. Using georeferenced tweets and photos collected from Twitter and Flickr, this research presents the spatial and temporal patterns of such crowd-sourced geographic data in the contiguous United States and explores the socioeconomic characteristics of geographic data creators by investigating the relationships between tweet and photo densities and the characteristics of local people using California as a case study. Correlations between dependent and independent variables in partial least squares regression suggest that well-educated people in the occupations of management, business, science, and arts are more likely to be involved in the generation of georeferenced tweets and photos. Further research is required to explain why some people tend to produce and spread information over the Internet using social media from the perspectives of psychology and sociology. This study would be informative to sociologists who study the behaviors of social media users, geographers who are interested in the spatial and temporal distribution of social media users, marketing agencies who intend to understand the influence of social media, and other scientists who use social media data in their research. Numéro de notice : A2013-743 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article DOI : 10.1080/15230406.2013.777139 En ligne : https://doi.org/10.1080/15230406.2013.777139 Format de la ressource électronique : url Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32879
in Cartography and Geographic Information Science > vol 40 n° 2 (March 2013) . - pp 61 - 77[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 032-2013021 RAB Revue Centre de documentation En réserve L003 Disponible Comparison of different strategies for determining raster-based least-cost paths with a minimum amount of distortion / H. Antikainen in Transactions in GIS, vol 17 n° 1 (February 2013)
[article]
Titre : Comparison of different strategies for determining raster-based least-cost paths with a minimum amount of distortion Type de document : Article/Communication Auteurs : H. Antikainen, Auteur Année de publication : 2013 Article en page(s) : pp 96 - 108 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse comparative
[Termes IGN] arbre quadratique
[Termes IGN] chemin le moins coûteux, algorithme du
[Termes IGN] données maillées
[Termes IGN] noeud
[Termes IGN] théorie des graphesRésumé : (Auteur) The conventional raster-based least-cost path technique, in which the connectivity graph is constructed by treating each raster cell as a node and linking each node to its adjacent neighbors, has been widely used to determine optimum paths in space. Unfortunately, paths calculated with this method are subject to distortions that stem from the imposed node-link structure. Due to the distortions, the calculated paths may be longer than the true optimum paths in continuous space, and because of this, they may also look highly unrealistic when displayed on a map. This study examines how the quality of the raster-based paths can be improved by using larger connectivity patterns on the one hand, and placing nodes on the sides of the cells of a raster instead of at their centers, on the other. In addition, the utility of the quadtree structure is examined. The different methods are evaluated against three different datasets using the cost distance of the calculated paths and processing times as evaluation criteria. The results indicate that raster-based paths can be improved by using the evaluated techniques, although the degree of improvement is also dependent on the properties of the underlying cost raster. Numéro de notice : A2013-042 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01355.x Date de publication en ligne : 09/10/2012 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01355.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32180
in Transactions in GIS > vol 17 n° 1 (February 2013) . - pp 96 - 108[article]A GIS-based vehicle mobility estimator for operational contexts / A. Homann in Transactions in GIS, vol 17 n° 1 (February 2013)
[article]
Titre : A GIS-based vehicle mobility estimator for operational contexts Type de document : Article/Communication Auteurs : A. Homann, Auteur ; G. Grandjean, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 78 - 95 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] données localisées
[Termes IGN] estimateur
[Termes IGN] interface logicielle
[Termes IGN] itinéraire
[Termes IGN] mobilité humaine
[Termes IGN] navigation automobile
[Termes IGN] optimisation (mathématiques)
[Termes IGN] outil d'aide à la décision
[Termes IGN] système d'information géographiqueRésumé : (Auteur) A vehicle mobility estimator has been developed to produce decision aid maps for projecting civil or military forces on operational theatres. Based on the exploitation of classical geographical sources (e.g. digital elevation models, optical images, and vector databases) and thematic sources (e.g. climate, meteorological, pedological and land cover databases), the system computes speed maps for different kinds of vehicles moving both on-road and off-road. Such computations are realized through a ground-vehicle interaction module that estimates the vehicle performance from experimental results, numerical simulations and empirical relationships. The system's architecture is built using a GIS interface that manages the data, the computation and the presentation layers. An operational version of this tool has been tested and validated on several operational theatres in France and in northern Africa. The results show good agreement between the predicted mobility performance of various vehicles and those observed on the field. A case study is presented to illustrate the mobility maps and demonstrate their relevance in the decision-making chain depending on different climate contexts. A short application to itinerary optimization is presented as a promising future application. Numéro de notice : A2013-041 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01351.x Date de publication en ligne : 03/02/2013 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01351.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32179
in Transactions in GIS > vol 17 n° 1 (February 2013) . - pp 78 - 95[article]Measuring dynamic interaction in movement data / Jed A. Long in Transactions in GIS, vol 17 n° 1 (February 2013)PermalinkSpatial approaches to modeling dispersion of communicable diseases : A review / L. Bian in Transactions in GIS, vol 17 n° 1 (February 2013)PermalinkSupport vector machine for spatial variation / C. Andris in Transactions in GIS, vol 17 n° 1 (February 2013)PermalinkTrajectories of moving objects on a network: detection of similarities, visualization of relations, and classification of trajectories / Yukio Sadahiro in Transactions in GIS, vol 17 n° 1 (February 2013)PermalinkTransaction-based intelligent transportation system (TBITS) using stochastic user utility model / J. Olusina in Transactions in GIS, vol 17 n° 1 (February 2013)PermalinkPermalinkEmpirical evidence on agricultural land-use change in Sardinia, Italy, from GIS-based analysis and a Tobit model / Corrado Zoppi in Cartographica, vol 47 n° 4 (December 2012)PermalinkLand-use change in Portugal, 1990-2006: Main processes and underlying factors / V. Diogo in Cartographica, vol 47 n° 4 (December 2012)PermalinkWaiting to know the future: A SLEUTH model forecast of urban growth with real data / G. Manca in Cartographica, vol 47 n° 4 (December 2012)PermalinkDesigning a 3D model for the prediction of the top of formation in oil fields using geostatistical methods / M. Abdideh in Geocarto international, vol 27 n° 7 (November 2012)Permalink