Descripteur
Documents disponibles dans cette catégorie (26)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Compromising contextual constraints and cartographic rules: application to sustainable maps / Charlotte Hoarau (2010)
Titre : Compromising contextual constraints and cartographic rules: application to sustainable maps Type de document : Article/Communication Auteurs : Charlotte Hoarau , Auteur Editeur : International Society for Photogrammetry and Remote Sensing ISPRS Année de publication : 2010 Collection : International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750 num. 38-B4 Conférence : ISPRS 2010, Special Joint Symposium of ISPRS Commission IV and AutoCarto 2010 in conjunction with ASPRS/CaGIS 2010 Special Conference, Geospatial Data and Geovisualization: Environment, Security, and Society 15/11/2010 19/11/2010 Orlando Floride - Etats-Unis ISPRS OA Archives Commisson 4 Importance : 7 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie
[Termes IGN] base de règles
[Termes IGN] couleur (rédaction cartographique)
[Termes IGN] prise en compte du contexte
[Termes IGN] programmation par contraintesRésumé : (auteur) The necessary adaptation of mapping applications generates new constraints which should be considered in addition to the traditional cartographic rules used to design maps. Particularly, colors used in the legend could be optimized regarding those constraints. A big stake of such optimization is to preserve the semiotic quality of maps. Therefore, we propose a quantification of the cartographic quality of a map regarding a given reference map and considering semantic rules of association, differentiation and order supposed to be conveyed by the colors of the map. Some mobile devices required more energy to display dark colors than lighter ones. Our example of contextual constraint is then the optimization of the colors in order to lower the energy required to display a map. Three map samples have been designed, while taking more or less into consideration conventional uses of colors for relevant themes: hydrography, vegetation and the background layer. We discuss on how to find the best compromise between a contextual constraint (the energy required to display a map on a screen of a mobile device in our example) and the cartographic consistency on colors regarding the initial semantic relationships in the legend. This supposes to evaluate how far a map supposed to follow cartographic rules can be altered while preserving its semiotic quality. Numéro de notice : C2010-043 Affiliation des auteurs : COGIT (1988-2011) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : https://www.isprs.org/proceedings/XXXVIII/part4/files/Hoarau.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=98154 Simuler la densification du tissu urbain au moyen d’un processus de peuplement / Florence Curie (2010)
contenu dans SAGEO '10, conférence internationale de géomatique et d'analyse spatiale, Toulouse, 17, 18 et 19 novembre 2010 / Claude Monteil (2010)
Titre : Simuler la densification du tissu urbain au moyen d’un processus de peuplement Type de document : Article/Communication Auteurs : Florence Curie, Auteur ; Annabelle Mas , Auteur ; Julien Perret , Auteur ; Anne Puissant, Auteur ; Anne Ruas , Auteur Editeur : Toulouse : Université de Toulouse Année de publication : 2010 Projets : GeOpenSim / Ruas, Anne Conférence : SAGEO 2010, Spatial Analysis and GEOmatics 17/11/2010 19/11/2010 Toulouse France ISPRS OA Archives Commisson 4 Importance : pp 108 - 123 Note générale : bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] base de règles
[Termes IGN] croissance urbaine
[Termes IGN] densification
[Termes IGN] espace urbain
[Termes IGN] habitat collectif
[Termes IGN] habitat individuel
[Termes IGN] population urbaine
[Termes IGN] programmation par contraintes
[Termes IGN] simulation spatiale
[Termes IGN] système complexe
[Termes IGN] système multi-agents
[Termes IGN] zone industrielle
[Termes IGN] zone urbaineRésumé : (auteur) L’approche présentée dans cet article utilise un système multi-agent pour modéliser du point de vue morphologique les propriétés auto-organisatrices des systèmes complexes urbains et vise à fournir un outil permettant d’étudier la croissance urbaine. Le système multi-agent proposé comporte une hiérarchie d’agents topographiques (e.g. les bâtiments, les routes, les cours d’eau, les îlots, la ville) qui peuvent être construits, modifiés, fusionnés, découpés, restructurés et détruits au cours du temps. Le comportement de chaque agent est contrôlé par un ensemble de règles d’évolution, de contraintes et d’actions associées. La question particulière traitée dans cet article concerne les méthodes de peuplement qui permettent la création de nouveaux agents tout en respectant une certaine organisation spatiale et un certain processus de construction. En effet ces méthodes nécessitent de trouver un compromis entre les besoins de la simulation et les connaissances géographiques. Dans cet article, l’accent a été mis sur les zones industrielles et les zones d’habitat de type individuel et collectif. Numéro de notice : C2010-024 Affiliation des auteurs : COGIT+Ext (1988-2011) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComAvecCL&ActesPubliésNat DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=88427 Documents numériques
peut être téléchargé
Simuler la densification du tissu urbain - preprintAdobe Acrobat PDF Generation and application of rules for quality dependent facade reconstruction / S. Becker in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 6 (November - December 2009)
[article]
Titre : Generation and application of rules for quality dependent facade reconstruction Type de document : Article/Communication Auteurs : S. Becker, Auteur Année de publication : 2009 Article en page(s) : 14 p. ; pp 640 - 653 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] architecture urbaine
[Termes IGN] base de règles
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] façade
[Termes IGN] grammaire de graphes
[Termes IGN] itération
[Termes IGN] lasergrammétrie
[Termes IGN] moteur d'inférence
[Termes IGN] photo-interprétation assistée par ordinateur
[Termes IGN] qualité des données
[Termes IGN] reconstruction 3D du bâtiRésumé : (Auteur) Frequently, terrestrial LiDAR and image data are used to extract high resolution building geometry like windows, doors and protrusions for three-dimensional (3D) façade reconstruction. However, such a purely data driven bottom-up modelling of façade structures is only feasible if the available observations meet considerable requirements on data quality. Errors in measurement, varying point densities, reduced accuracies, as well as incomplete coverage affect the achievable correctness and reliability of the reconstruction result. While dependence on data quality is a general disadvantage with data driven bottom-up approaches, model based top-down reconstructions are much more robust. Algorithms introduce knowledge about the appearance and arrangement of objects. Thus, they cope with data uncertainty and allow for a procedural modelling of building structures in a predefined architectural style, which is inherent in grammar or model descriptions. We aim at a quality sensitive façade reconstruction which is on the one hand robust against erroneous and incomplete data, but on the other hand not subject to prespecified rules or models. For this purpose, we combine bottom-up and top-down strategies by integrating automatically inferred rules into a data driven reconstruction process. Façade models reconstructed during a bottom-up method serve as a knowledge base for further processing. Dominant or repetitive features and regularities as well as their hierarchical relationship are detected from the modelled façade elements and automatically translated into rules. These rules together with the 3D representations of the modelled façade elements constitute a formal grammar. It holds all the information which is necessary to reconstruct façades in the style of the given building. The paper demonstrates that the proposed algorithm is very flexible towards different data quality and incomplete sensor data. The inferred grammar is used for the verification of the façade model produced during the data driven reconstruction process and the generation of synthetic façades for which only partial or no sensor data is available. Moreover, knowledge propagation is not restricted to façades of one single building. Based on a small set of formal grammars derived from just a few observed buildings, façade reconstruction is also possible for whole districts featuring uniform architectural styles. Copyright 2009 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS). Numéro de notice : A2009-496 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2009.06.002 En ligne : https://doi.org/10.1016/j.isprsjprs.2009.06.002 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30125
in ISPRS Journal of photogrammetry and remote sensing > vol 64 n° 6 (November - December 2009) . - 14 p. ; pp 640 - 653[article]Réservation
Réserver ce documentExemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 081-09061 RAB Revue Centre de documentation En réserve L003 Disponible A GeoAgent-based framework for knowledge-oriented representation: embracing social rules in GIS / C. Yu in International journal of geographical information science IJGIS, vol 23 n° 7-8 (july 2009)
[article]
Titre : A GeoAgent-based framework for knowledge-oriented representation: embracing social rules in GIS Type de document : Article/Communication Auteurs : C. Yu, Auteur ; Donna J. Peuquet, Auteur Année de publication : 2009 Article en page(s) : pp 923 - 960 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] agent (intelligence artificielle)
[Termes IGN] base de connaissances
[Termes IGN] base de règles
[Termes IGN] cadre conceptuel
[Termes IGN] interaction homme-milieu
[Termes IGN] modèle conceptuel de données localisées
[Termes IGN] Pennsylvanie (Etats-Unis)
[Termes IGN] prototype
[Termes IGN] représentation des connaissances
[Termes IGN] système à base de connaissances
[Termes IGN] système multi-agentsRésumé : (Auteur) While current Geographic Information Systems (GISs) can represent observational spatial data well, they have limited capabilities in representing some non-observational social elements and goal-driven behaviours that can be important factors in a wide range of geographic issues. Such social components may include laws, regulations, polices, plans, culture, and customs, as well as their relations and interactions with the geographic environment at different scales. Getting beyond traditional data-centred approaches, this research presents a knowledge-oriented strategy in order to address these issues within a GIS context. We incorporate two major conceptual elements. First, extending from conventional agent notions and their geographic applications, geographic agents (GeoAgents) are considered as a basic representation component to specifically address social rules and goal-driven behaviours that impact the Earth and environmental systems. Second, in order to incorporate GeoAgents with current space-time representation, a new conceptual representation framework, called 'fields, objects, time, GeoAgents, and relations' (FOTAR), is introduced to address the cross-scale processes of both social and natural interactions. A Java-based prototype, GeoAgent-based Knowledge System (GeoAgentKS), is described to implement this framework by integrating agent technologies with multiple data and knowledge representation techniques, such as expert systems, concept maps, mathematical models, and geospatial databases. The application of this prototype in a case study is also presented, investigating scale-dependent human-environment interactions under different emergency situations for community water systems in Central Pennsylvania, USA. In this case study, a systematic set of methodologies of knowledge acquisition, representation, and confirmation for constructing GeoAgents' knowledge bases by using expert systems were explored to formalize high-level knowledge and social behaviours in the FOTAR-based representations. The results show that the proposed conceptual representation framework is achievable at both implementation and application levels, and the prototype tool is demonstrated to be valuable in facilitating knowledge sharing, policymaking, municipal management, and decision-making, especially for real-world emergency management. Copyright Taylor & Francis Numéro de notice : A2009-341 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810701602104 En ligne : https://doi.org/10.1080/13658810701602104 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29971
in International journal of geographical information science IJGIS > vol 23 n° 7-8 (july 2009) . - pp 923 - 960[article]Réservation
Réserver ce documentExemplaires (2)
Code-barres Cote Support Localisation Section Disponibilité 079-09051 RAB Revue Centre de documentation En réserve L003 Disponible 079-09052 RAB Revue Centre de documentation En réserve L003 Disponible A rough set approach to the discovery of classification rules in spatial data / Yee Leung in International journal of geographical information science IJGIS, vol 21 n° 9-10 (october 2007)
[article]
Titre : A rough set approach to the discovery of classification rules in spatial data Type de document : Article/Communication Auteurs : Yee Leung, Auteur ; T. Fung, Auteur ; et al., Auteur Année de publication : 2007 Article en page(s) : pp 1033 - 1058 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] base de règles
[Termes IGN] classification
[Termes IGN] données localisées
[Termes IGN] exploration de données géographiques
[Termes IGN] image Ikonos
[Termes IGN] outil de découverte de connaissances
[Termes IGN] raisonnement inductif
[Termes IGN] système d'information géographiqueRésumé : (Auteur) This paper proposes a novel rough set approach to discover classification rules in real-valued spatial data in general and remotely sensed data in particular. A knowledge induction process is formulated to select optimal decision rules with a minimal set of features necessary and sufficient for a remote sensing classification task. The approach first converts a real-valued or integer-valued decision system into an interval-valued information system. A knowledge induction procedure is then formulated to discover all classification rules hidden in the information system. Two real-life applications are made to verify and substantiate the conceptual arguments. It demonstrates that the proposed approach can effectively discover in remotely sensed data the optimal spectral bands and optimal rule set for a classification task. It is also capable of unraveling critical spectral band(s) discerning certain classes. The framework paves the road for data mining in mixed spatial databases consisting of qualitative and quantitative data. Copyright Taylor & Francis Numéro de notice : A2007-555 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/13658810601169915 En ligne : https://doi.org/10.1080/13658810601169915 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28918
in International journal of geographical information science IJGIS > vol 21 n° 9-10 (october 2007) . - pp 1033 - 1058[article]Réservation
Réserver ce documentExemplaires (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 Legend design based on map samples [extended abstract] / Catherine Dominguès (2006)PermalinkPermalinkPermalinkUpdating land cover classification using a rule-based decision system / Damien Raclot in International Journal of Remote Sensing IJRS, vol 26 n° 7 (April 2005)PermalinkRevision of cartographic generalisation rule bases / Sylvain Bard in Bulletin du comité français de cartographie, n°s 169 - 170 (septembre 2001 - février 2002)PermalinkRévision d'une base de connaissances : Application à la généralisation cartographique / Sylvain Bard (2000)PermalinkDeveloping rules for map design: a functional specification for a cartographic-design expert system / David Forrest in Cartographica, vol 36 n° 3 (September 1999)PermalinkCaractérisation des textures d'images radar par réseaux de neurones / Philippe Mainguenaud (1995)PermalinkPermalinkPrototype rules for automated map generalization / Michael Leitner (1993)Permalink