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Spatiotemporal analysis of rural-urban land conversion / B. Huang in International journal of geographical information science IJGIS, vol 23 n°3-4 (march - april 2009)
[article]
Titre : Spatiotemporal analysis of rural-urban land conversion Type de document : Article/Communication Auteurs : B. Huang, Auteur ; L. Zhang, Auteur ; B. Wu, Auteur Année de publication : 2009 Article en page(s) : pp 379 - 398 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse spatio-temporelle
[Termes IGN] conversion
[Termes IGN] géostatistique
[Termes IGN] milieu rural
[Termes IGN] milieu urbain
[Termes IGN] régression logistique
[Termes IGN] utilisation du solRésumé : (Auteur) Understanding the complexity of urban expansion requires an analysis of the factors influencing the spatial and temporal processes of rural-urban land conversion. This study aims at building a statistical land conversion model to assist in understanding land use change patterns. Specifically, GIS coupled with a logistic regression model and exponential smoothing techniques is used for exploring the effects of various factors on land use change. These factors include population density, slope, proximity to roads, and surrounding land use, and their influence on land use change is studied for generating a predictive model. Methods to reduce spatial autocorrelation in a logistic regression framework are also discussed. Primarily, an optimal sampling scheme that can eliminate spatial autocorrelation while maintaining adequate samples to allow the model to achieve the comparable accuracy as the spatial autoregressive model is developed. Since many of the previous studies on modeling the spatial complexity of urban growth ignored temporal complexity, a modified exponential smoothing technique is employed to produce a smoothed model from a series of bi-temporal models obtained from different time periods. The proposed model is validated using the multi-temporal land use data in New Castle County, DE, USA. It is demonstrated that our approach provides an effective option for multi-temporal land use change modeling and the modeling results help interpret the land use change patterns. Numéro de notice : A2009-155 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802119685 En ligne : https://doi.org/10.1080/13658810802119685 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78209
in International journal of geographical information science IJGIS > vol 23 n°3-4 (march - april 2009) . - pp 379 - 398[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-09021 RAB Revue Centre de documentation En réserve L003 Disponible 079-09022 RAB Revue Centre de documentation En réserve L003 Disponible Topological feature vectors for exploring topological relationships / R. Praing in International journal of geographical information science IJGIS, vol 23 n°3-4 (march - april 2009)
[article]
Titre : Topological feature vectors for exploring topological relationships Type de document : Article/Communication Auteurs : R. Praing, Auteur ; Monique Schneider, Auteur Année de publication : 2009 Article en page(s) : pp 319 - 353 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] détail topographique
[Termes IGN] données vectorielles
[Termes IGN] exploration de données géographiques
[Termes IGN] primitive géométrique
[Termes IGN] relation topologiqueRésumé : (Auteur) Topological relationships between spatial objects such as overlap, disjoint, and inside have for a long time been a focus of research in a number of disciplines like cognitive science, robotics, linguistics, artificial intelligence, and spatial reasoning. In particular as predicates, they support the design of suitable query languages for spatial data retrieval and analysis in spatial database systems and Geographic Information Systems. While conceptual aspects of topological predicates (like their definition and reasoning with them) as well as strategies for avoiding unnecessary or repetitive predicate evaluations (like predicate migration and spatial index structures) have been emphasized, the development of correct and efficient implementation techniques for them has been rather neglected. Recently, the design of topological predicates for different combinations of complex spatial data types has led to a large increase of their numbers and accentuated the need for their efficient implementation. The goal of this article is to develop efficient implementation techniques of topological predicates for all combinations of the complex spatial data types point2D, line2D, and region2D, as they have been specified by different authors and in different commercial and public domain software packages. Our solution is a two-phase approach. In the exploration phase, for a given scene of two spatial objects, all topological events like intersection and meeting situations are recorded in two precisely defined topological feature vectors (one for each argument object of a topological predicate) whose specifications are characteristic and unique for each combination of spatial data types. These vectors serve as input for the evaluation phase which analyzes the topological events and determines the Boolean result of a topological predicate or the kind of topological predicate. This paper puts an emphasis on the exploration phase and the definition of the topological feature vectors. In addition, it presents a straightforward evaluation method. Copyright Taylor & Francis Numéro de notice : A2009-153 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802001305 En ligne : https://doi.org/10.1080/13658810802001305 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29783
in International journal of geographical information science IJGIS > vol 23 n°3-4 (march - april 2009) . - pp 319 - 353[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-09021 RAB Revue Centre de documentation En réserve L003 Disponible 079-09022 RAB Revue Centre de documentation En réserve L003 Disponible New perspectives on the use of GPS and GIS to support a highway performance study / D. Tong in Transactions in GIS, vol 13 n° 1 (February 2009)
[article]
Titre : New perspectives on the use of GPS and GIS to support a highway performance study Type de document : Article/Communication Auteurs : D. Tong, Auteur ; B. Coifman, Auteur ; C.J. Merry, Auteur Année de publication : 2009 Article en page(s) : pp 69 - 85 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse spatiale
[Termes IGN] autoroute
[Termes IGN] Colombus (Ohio)
[Termes IGN] intégration de données
[Termes IGN] outil d'aide à la décision
[Termes IGN] performance
[Termes IGN] positionnement par GPS
[Termes IGN] système d'information géographique
[Termes IGN] trafic routierRésumé : (Auteur) In recent decades, rapid growth of travel volume has resulted in a significant increase in traffic congestion, accidents, environmental pollution and energy consumption. Accurate traffic data are drastically needed for effective evaluation of traffic systems in order to alleviate the impacts of increasing travel volume of the quality of life and economic development of urban areas. This article provides a discussion on a data acquisition methodology for highway traffic pattern recognition and congestion analysis by integrating data from the global positioning system (GPS) with a geographic information system (GIS). The GPS technology is a powerful tool in capturing continuous positioning and timing information, whereas the GIS is capable of storing, managing, manipulating, analyzing and displaying the acquired spatial information. Compared to previous studies, the effective integration of the two technologies allows for traffic analysis to be conducted at a finer resolution. The proposed method is illustrated with a case study on multiple major highway segments in Columbus, Ohio. Copyright Blackwell Publishing Numéro de notice : A2009-545 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2009.01144.x En ligne : https://doi.org/10.1111/j.1467-9671.2009.01144.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30174
in Transactions in GIS > vol 13 n° 1 (February 2009) . - pp 69 - 85[article]An improved fuzzy Kappa statistic that accounts for spatial autocorrelation / Alex Hagen-Zanker in International journal of geographical information science IJGIS, vol 23 n° 1-2 (january 2009)
[article]
Titre : An improved fuzzy Kappa statistic that accounts for spatial autocorrelation Type de document : Article/Communication Auteurs : Alex Hagen-Zanker, Auteur Année de publication : 2009 Article en page(s) : pp 61 - 73 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] autocorrélation spatiale
[Termes IGN] Kappa de Cohen
[Termes IGN] logique floue
[Termes IGN] voisinage (relation topologique)Résumé : (Auteur) The Fuzzy Kappa statistic expresses the agreement between two categorical raster maps. The statistic goes beyond cell-by-cell comparison and gives partial credit to cells based on the categories found in the neighborhood. When matching categories are found at shorter distances the agreement is higher. Like the well-established Kappa statistic the Fuzzy Kappa statistic expresses the mean agreement relative to the expected agreement. The model underlying the expected agreement assumes absence of spatial autocorrelation in both compared maps. In reality however, spatial autocorrelation does lower the expected agreement as matching categories become less likely to be found close-by. Since most maps have some degree of spatial autocorrelation, the calculated expected agreement is generally higher than the true expected agreement. This leads to counterintuitive results when maps that appear to have considerable agreement obtain negative Fuzzy Kappa values. Furthermore, the Fuzzy Kappa may be biased, as it systematically attributes lower agreement to maps with stronger spatial autocorrelation. This paper proposes an improved Fuzzy Kappa statistic that is based on the same local agreement and has the same attractive properties as the original Fuzzy Kappa. The novelty is that the new statistic accounts for spatial autocorrelation, such that the expected Fuzzy Kappa for maps that are not cross-correlated is equal to zero. The improved statistic is applied on two cases to demonstrate its properties. Copyright Taylor & Francis Numéro de notice : A2009-127 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802570317 En ligne : https://doi.org/10.1080/13658810802570317 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29757
in International journal of geographical information science IJGIS > vol 23 n° 1-2 (january 2009) . - pp 61 - 73[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-09011 RAB Revue Centre de documentation En réserve L003 Disponible 079-09012 RAB Revue Centre de documentation En réserve L003 Disponible Un cadre formel pour l'exploration de réseaux pour l'analyse quantitative des réseaux / Eric Mermet (2009)
contenu dans Neuvièmes Rencontres de Théo Quant, Besançon, 4-6 mars 2009 / Jean-Christophe Foltête (2009)
Titre : Un cadre formel pour l'exploration de réseaux pour l'analyse quantitative des réseaux Type de document : Article/Communication Auteurs : Eric Mermet , Auteur Editeur : Besançon : Université de Franche-Comté Année de publication : 2009 Conférence : Théo Quant 2009, 9es rencontres de Théo Quant, colloquium on theorical and quantitative geography 04/03/2009 06/03/2009 Besançon France OA Abstracts only Importance : pp 40 - 41 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse spatiale
[Termes IGN] cadre conceptuel
[Termes IGN] réseau de transportNuméro de notice : C2009-023 Affiliation des auteurs : COGIT (1988-2011) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésNat DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89990 Documents numériques
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