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Spatial approaches to modeling dispersion of communicable diseases : A review / L. Bian in Transactions in GIS, vol 17 n° 1 (February 2013)  

Public [article]  inTransactions in GIS > vol 17 n° 1 (February 2013) . - pp 1 - 17 Titre : Spatial approaches to modeling dispersion of communicable diseases : A review Type de document : Article/Communication Auteurs : L. Bian, Auteur Année de publication : 2013 Article en page(s) : pp 1 - 17 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] analyse comparative [Termes IGN] diffusion spatiale [Termes IGN] données spatiotemporelles [Termes IGN] épidémie [Termes IGN] modèle de dispersion [Termes IGN] processus spatial [Termes IGN] processus temporel [Termes IGN] système d'information géographique Résumé : (Auteur) The dispersion of communicable diseases in a population is intrinsically spatial. In the last several decades, a range of spatial approaches has been devised to model epidemiological processes; and they differ significantly from each other. A review of spatially oriented epidemiological models is necessary to assess advances in spatial approaches to modeling disease dispersion and to help identify those most appropriate for specific research goals. The most notable difference in the design of these spatially oriented models is the scale and mobility of the modeling unit. Using two criteria, this review identifies six types of spatially oriented models. These include: (1) population-based wave models, (2) sub-population models, (3) individual-based cellular automata models, (4) mobile sub-population models, (5) individual-based spatially implicit models, and (6) individual-based mobile models. Each model type is evaluated in terms of its design principles, assumptions, and intended applications. For the evaluation of design, four aspects of design principles are discussed: the modeling unit, the interaction between the modeling units, the spatial process, and the temporal process utilized in a design. Insights gained from this review can be useful for devising much-needed spatially and temporally oriented strategies to forecast, prevent, and control communicable diseases. Numéro de notice : A2013-037 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2012.01329.x Date de publication en ligne : 23/07/2012 En ligne : https://doi.org/10.1111/j.1467-9671.2012.01329.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32175 [article]

Interoperability of functions in environmental models: a case study in hydrological modeling / S. Hu in International journal of geographical information science IJGIS, vol 23 n° 5 (may 2009)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 23 n° 5 (may 2009) . - pp 657 - 681 Titre : Interoperability of functions in environmental models: a case study in hydrological modeling Type de document : Article/Communication Auteurs : S. Hu, Auteur ; L. Bian, Auteur Année de publication : 2009 Article en page(s) : pp 657 - 681 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] bibliothèque logicielle [Termes IGN] interopérabilité [Termes IGN] modèle hydrographique [Termes IGN] référentiel sémantique [Termes IGN] ruissellement [Termes IGN] structure hiérarchique de données Résumé : (Auteur) The monolithic structure of process-based environmental models has become a major obstacle in dealing with complex environmental problems. Interoperability is the inevitable direction for future generations of models. This article discusses the identification of equation functions for interoperable environmental models. These equations represent environmental processes that are implemented as algorithms in the models. The identification of common equations in existing models helps develop equation components that can be assembled to form customized models. In the context of a semantic reference system, formal concept analysis is used to decompose existing models, extract the common equations embedded in them, and organize these equations in a hierarchy of a concept lattice. The hierarchical structure of the lattice helps identify the relationships between equations across different levels and within the same level. Insights drawn from the concept lattice provide valuable information for the framework design of customized models and the adaptation of algorithms from existing models for the development of equation components. An important hydrological process, surface runoff, is used as an example of an environmental process to illustrate the analysis. To support the discussion, a customized surface runoff model is built using three components extracted from several existing hydrological models to predict surface runoff of a watershed. Copyright Taylor & Francis Numéro de notice : A2009-302 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810902733674 En ligne : https://doi.org/10.1080/13658810902733674 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29932 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-09031	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-09032	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Unsing spatial continuity and discontinuity information to retrieve geographic entities / Z. Xie in Geocarto international, vol 24 n° 1 (February - March 2009)  

Public [article]  inGeocarto international > vol 24 n° 1 (February - March 2009) . - pp 3 - 23 Titre : Unsing spatial continuity and discontinuity information to retrieve geographic entities Type de document : Article/Communication Auteurs : Z. Xie, Auteur ; L. Bian, Auteur Année de publication : 2009 Article en page(s) : pp 3 - 23 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] détection de contours [Termes IGN] discontinuité [Termes IGN] objet géographique [Termes IGN] photographie aérienne [Termes IGN] photographie numérique [Termes IGN] reconnaissance d'objets [Termes IGN] variogramme Résumé : (Auteur) This paper presents three methods for representing spatial properties of geographic entity types in order to retrieve digital aerial photographs that contain these types. The three methods are semivariogram, edge tracing and an integration of the two methods. The first two methods are used to represent spatial continuity and spatial discontinuity information, respectively, associated with geographic entities, while the integrated method is used to represent both properties. The three methods are used to retrieve seven land cover types; factories, shopping centres, highways, forest, farmland, grasses and residential areas. Results show that between the two independent methods, the semivariogram method generally produces higher retrieval precision and more consistency across the seven types than the edge tracing method. The integrated method considerably outperforms the two independent methods. Copyright Taylor & Francis Numéro de notice : A2009-021 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040801995828 Date de publication en ligne : 27/07/2009 En ligne : https://doi.org/10.1080/10106040801995828 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29651 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-09011	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Identifying components for interoperable process models using concept lattice and semantic reference system / L. Bian in International journal of geographical information science IJGIS, vol 21 n° 9-10 (october 2007)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 21 n° 9-10 (october 2007) . - pp 1009 - 1032 Titre : Identifying components for interoperable process models using concept lattice and semantic reference system Type de document : Article/Communication Auteurs : L. Bian, Auteur ; S. Hu, Auteur Année de publication : 2007 Article en page(s) : pp 1009 - 1032 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] composant SIG [Termes IGN] interopérabilité [Termes IGN] modèle hydrographique [Termes IGN] modèle sémantique de données [Termes IGN] processus Résumé : (Auteur) The development of interoperable environmental process models is widely supported by both the research community and government agencies. This paper discusses a conceptual framework to guide the delineation of process components, the basic unit of interoperable models. The concepts of semantic reference system and dual hierarchy are explored to establish the conceptual framework. Based on this discussion, the Formal Concept Analysis is used as an analytical approach to decompose and fuse existing environmental process models in order to identify environmental process components. For purposes of discussion, a hydrological process, surface runoff, is used throughout the paper as an example of an environmental process to support the conceptual discussion and to illustrate the application of the conceptual framework and analytical approach. Copyright Taylor & Francis Numéro de notice : A2007-554 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810601169907 En ligne : https://doi.org/10.1080/13658810601169907 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28917 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
079-07061	RAB	Revue	Centre de documentation	En réserve L003	Disponible
079-07062	RAB	Revue	Centre de documentation	En réserve L003	Disponible