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L’impact du voisinage géographique des pays dans l’attribution des votes au Concours Eurovision de la Chanson / Jean-François Gleyze in Cybergeo, European journal of geography, n° 2011 ([01/01/2011])
[article]
Titre : L’impact du voisinage géographique des pays dans l’attribution des votes au Concours Eurovision de la Chanson Titre original : Neighbourhood impact on votes awarding in the Eurovision Song Contest Type de document : Article/Communication Auteurs : Jean-François Gleyze , Auteur Année de publication : 2011 Article en page(s) : n° 515 Note générale : bibliographie Langues : Français (fre) Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse de groupement
[Termes IGN] graphe
[Termes IGN] réseau social
[Termes IGN] voisinage (relation topologique)Résumé : (auteur) The Eurovision Song Contest has been held every year since 1956. The originality of this contest lies in the points awarding system. There is no single jury but, on the contrary, each country is asked to award a given number of points to the countries which performed its favourite songs. Beyond the interest of such a system to collectively rank countries, it provides a long story of the swapped points between countries. Such information makes it possible to detect couples of countries {voter, performer} for whom votes are not exclusively guided by song quality. Currently the media covering the event regularly mention a bias in the votes distribution: according to them, this bias would be caused by geographical proximity and would lead to blocs of nearby countries which overwhelmingly vote for each other. In this article, we try to discuss this assumption. This latter requires to answer the following question: “how can we assess the influence of spatial proximity on the social ties formation?”. Besides this issue, several methodological challenges appear. First, we examine the votes of the 1993-2008 period and we identify the social ties of interest, that is the couples of countries {voter, performer} whose votes significantly diverge from the reference situation (i.e. a competition on song quality). Then, we compare the resulting social network with the spatial countries network by a well-suited statistical method to prove that “over-votes” concern nearby countries. Finally, we highlight clusters of countries tending to over-vote for each other and, in that respect, we define clustering criteria which make sense. We show that these blocs strongly structure the abnormally high votes of the 2009 event. This analysis method combines geographical and social networks and can be extended to the study of phenomena concerning relations between spatialised entities. Numéro de notice : A2011-126 Affiliation des auteurs : COGIT (1988-2011) Thématique : GEOMATIQUE Nature : Article DOI : 10.4000/cybergeo.23451 Date de publication en ligne : 10/01/2011 En ligne : https://doi.org/10.4000/cybergeo.23451 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=101421
in Cybergeo, European journal of geography > n° 2011 [01/01/2011] . - n° 515[article]Modeling the scale dependences of topological relations between lines and regions induced by reduction of attributes / S. Du in International journal of geographical information science IJGIS, vol 24 n°11-12 (december 2010)
[article]
Titre : Modeling the scale dependences of topological relations between lines and regions induced by reduction of attributes Type de document : Article/Communication Auteurs : S. Du, Auteur ; Q. Wang, Auteur ; Luo Guo, Auteur Année de publication : 2010 Article en page(s) : pp 1649 - 1686 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] analyse multiéchelle
[Termes IGN] attribut
[Termes IGN] facteur d'échelle
[Termes IGN] généralisation cartographique automatisée
[Termes IGN] graphe
[Termes IGN] objet géographique linéaire
[Termes IGN] objet géographique zonal
[Termes IGN] relation topologiqueRésumé : (Auteur) The scale dependences of topological relations are caused by the changes of spatial objects at different scales, which are induced by the reduction of attributes. Generally, the detailed partitions and multi-scale attributes are stored in spatial databases, while the coarse partitions are not. Consequently, the detailed topological relations can be computed and regarded as known information, while the coarse relations stay unknown. However, many applications (e.g., multi-scale spatial data query) need to deal with the topological relations at multiple scales. In this study new methods are proposed to model and derive the scale dependences of topological relations between lines and multi-scale region partitions. The scale dependences of topological relations are modeled and used to derive the relations between lines and coarse partitions from the relations about the detailed partitions. The derivation can be performed in two steps. At the first step, the topological dependences between a line and two meeting, covered and contained regions are computed and stored into composition tables, respectively. At the second step, a graph is used to represent the neighboring relations among the regions in a detailed partition. The scale dependences and detailed relations are then used to derive topological relations at the coarse level. Our methods can also be extended to handle the scale dependences of relations about disconnected regions, or the combinations of connected and disconnected regions. Because our methods use the scale dependences to derive relations at the coarse level, rather than generating coarse partition and computing the relations with geometric information, they are more efficient to support scale-dependent applications. Numéro de notice : A2010-547 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658811003591672 En ligne : https://doi.org/10.1080/13658811003591672 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30739
in International journal of geographical information science IJGIS > vol 24 n°11-12 (december 2010) . - pp 1649 - 1686[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-2010071 RAB Revue Centre de documentation En réserve L003 Disponible 079-2010072 RAB Revue Centre de documentation En réserve L003 Disponible Analysis of the spatial relations among point distributions on a discrete space / Yukio Sadahiro in International journal of geographical information science IJGIS, vol 24 n°7-8 (july 2010)
[article]
Titre : Analysis of the spatial relations among point distributions on a discrete space Type de document : Article/Communication Auteurs : Yukio Sadahiro, Auteur Année de publication : 2010 Article en page(s) : pp 997 - 1014 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] établissement d'enseignement
[Termes IGN] graphe
[Termes IGN] Japon
[Termes IGN] relation spatiale
[Termes IGN] relation topologique
[Termes IGN] représentation discrèteRésumé : (Auteur) This paper proposes a method of analyzing spatial relations among point distributions on a discrete space. Spatial topology and proximity are discussed in an integrated framework at both local and global scales. Local relations are described by geographical representations, whereas global relations are visualized by graph representations. The latter also provide a means of classifying the point distributions. The proposed method is applied to school location planning in Japan. The results reveal the appealing properties of the method and provide empirical findings. Numéro de notice : A2010-318 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810903213296 En ligne : https://doi.org/10.1080/13658810903213296 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30512
in International journal of geographical information science IJGIS > vol 24 n°7-8 (july 2010) . - pp 997 - 1014[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-2010041 RAB Revue Centre de documentation En réserve L003 Disponible 079-2010042 RAB Revue Centre de documentation En réserve L003 Disponible Feature-based cartographic modelling / K. French in International journal of geographical information science IJGIS, vol 24 n°1-2 (january 2010)
[article]
Titre : Feature-based cartographic modelling Type de document : Article/Communication Auteurs : K. French, Auteur ; X. Li, Auteur Année de publication : 2010 Article en page(s) : pp 141 - 164 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] analyse spatiale
[Termes IGN] données vectorielles
[Termes IGN] Map Algebra
[Termes IGN] modèle conceptuel de données localisées
[Termes IGN] relation topologique
[Termes IGN] voisinage (relation topologique)Résumé : (Auteur) Cartographic modelling operations provide powerful tools for analysing and manipulating geographic data in the raster data model. This research extends these operations to the vector data model. It first discusses how the spatial scopes of analysis can be defined for point, line, and polygon features analogous to the raster cell. Then it introduces the local, focal, and zonal operations available for vector features, followed by providing a prototype syntax that might guide the implementation of these operations. Through example applications, this research also demonstrates the usefulness of these operations by comparing them with traditional vector spatial analysis. Copyright Taylor & Francis Numéro de notice : A2010-114 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810802492462 En ligne : http://dx.doi.org/10.1080/13658810802492462 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30310
in International journal of geographical information science IJGIS > vol 24 n°1-2 (january 2010) . - pp 141 - 164[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-2010012 RAB Revue Centre de documentation En réserve L003 Disponible 079-2010011 RAB Revue Centre de documentation En réserve L003 Disponible Relative positions in words: a system that builds descriptions around Allen relations / P. Matsakis in International journal of geographical information science IJGIS, vol 24 n°1-2 (january 2010)
[article]
Titre : Relative positions in words: a system that builds descriptions around Allen relations Type de document : Article/Communication Auteurs : P. Matsakis, Auteur ; L. Wawrzyniak, Auteur ; J. Ni, Auteur Année de publication : 2010 Article en page(s) : pp 1 - 23 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] histogramme
[Termes IGN] image 2D
[Termes IGN] langage naturel (informatique)
[Termes IGN] logique floue
[Termes IGN] position
[Termes IGN] Relation d'Allen
[Termes IGN] relation topologique
[Termes IGN] sous ensemble flouRésumé : (Auteur) In this paper, we introduce a system able to generate an intuitive, human-like linguistic description of the topological relationships between two objects. The description includes approximate terms commonly found in daily communications. It attempts to capture the essential characteristics of the relationships, while leaving out superfluous and possibly overwhelming detail. The objects are 2-D image objects. They need not be convex, nor connected, and they may have holes in them. Each description is built around Allen relations, based on information extracted from F-histograms. It consists of a topological component that indicates the primary topological relationships, directional estimates of where these relationships are most prominent, and a self-assessment component which reflects the complexity of the situation. Experiments on synthetic and real data validate the approach. Copyright Taylor & Francis Numéro de notice : A2010-112 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802270587 En ligne : http://dx.doi.org/10.1080/13658810802270587 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30308
in International journal of geographical information science IJGIS > vol 24 n°1-2 (january 2010) . - pp 1 - 23[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-2010012 RAB Revue Centre de documentation En réserve L003 Disponible 079-2010011 RAB Revue Centre de documentation En réserve L003 Disponible Simulation des systèmes complexes en géographie / P. Langlois (2010)PermalinkUser defined topological predicates in databases systems / Timon Behr in Geoinformatica, vol 14 n° 1 (January 2010)PermalinkA prototype feature system for feature retrieval using relationships / J. Choi in Cartography and Geographic Information Science, vol 36 n° 4 (October 2009)PermalinkStreet-based topological representations and analyses for predicting traffic flow in GIS / Bin Jiang in International journal of geographical information science IJGIS, vol 23 n°9-10 (september 2009)PermalinkQualified topological relations between spatial objects with possible vague shape / L. Bejaoui in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)PermalinkRanking spaces for predicting human movement in an urban environment / Bin Jiang in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)PermalinkShape deformation in continuous map generalization / J. Danciger in Geoinformatica, vol 13 n° 2 (June 2009)PermalinkPermalinkCombined object-based classification and manual interpretation-synergies for a quantitative assessment of parcels and biotopes / S. Lang in Geocarto international, vol 24 n° 2 (April - May 2009)PermalinkModélisation de contraintes d'intégrité spatiales avec OCL / F. Pinet in Revue internationale de géomatique, vol 19 n° 1 (mars – mai 2009)Permalink