Paru le : 01/08/2006 ISBN/ISSN/EAN : 1365-8816 |
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Ajouter le résultat dans votre panierGIS-based multicriteria decision analysis: a survey of the literature / J. Malczewski in International journal of geographical information science IJGIS, vol 20 n° 7 (august 2006)
[article]
Titre : GIS-based multicriteria decision analysis: a survey of the literature Type de document : Article/Communication Auteurs : J. Malczewski, Auteur Année de publication : 2006 Article en page(s) : pp 703 - 726 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] analyse multicritèreRésumé : (Auteur) The integration of GIS and multicriteria decision analysis has attracted significant interest over the last 15 years or so. This paper surveys the GIS-based multicriteria decision analysis (GIS-MCDA) approaches using a literature review and classification of articles from 1990 to 2004. An electronic search indicated that over 300 articles appeared in refereed journals. The paper provides taxonomy of those articles and identifies trends and developments in GIS-MCDA. Copyright Taylor & Francis Numéro de notice : A2006-291 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810600661508 En ligne : https://doi.org/10.1080/13658810600661508 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28018
in International journal of geographical information science IJGIS > vol 20 n° 7 (august 2006) . - pp 703 - 726[article]Réservation
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A2006-291.pdfAdobe Acrobat PDF The role of sub-national government and the private sector in future spatial data infrastructures / Abbas Rajabifard in International journal of geographical information science IJGIS, vol 20 n° 7 (august 2006)
[article]
Titre : The role of sub-national government and the private sector in future spatial data infrastructures Type de document : Article/Communication Auteurs : Abbas Rajabifard, Auteur ; A. Binns, Auteur ; Ian Masser, Auteur ; Ian Williamson, Auteur Année de publication : 2006 Article en page(s) : pp 727 - 741 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] collectivité territoriale
[Termes IGN] infrastructure mondiale des données localisées
[Termes IGN] secteur privéRésumé : (Auteur) A Spatial Data Infrastructure (SDI) facilitates and coordinates the exchange and sharing of spatial data between stakeholders in the spatial data community. With this objective in mind, countries throughout the world are developing SDIs to manage and utilize their spatial data assets more effectively. These countries are developing SDIs to assist in various kinds of decision-making at different levels of government jurisdictions that have an important impact within their national boundaries. However, current research shows that SDI is understood and described differently by stakeholders from different disciplines and different jurisdictional levels. Therefore, in many cases, SDI initiatives remain very much an innovation, even among practitioners. There are still uncertainties regarding the benefits and identities of SDIs, particularly in connection with how they evolve over time to meet user needs. This paper reviews and assesses the development of SDIs throughout the world over the past 15 years and the leadership role of national governments in SDI creation. This assessment is based on the SDI activities of various jurisdictions including Asia-Pacific, Australia, North America, and Europe, and research into the worldwide effects of spatial information clearing houses. This assessment includes a discussion on emerging trends in SDI development, with particular reference to the increasingly important role played by sub-national governments and the private sector within the framework of SDI development. The paper concludes with a discussion of the implications for future SDI development, including the delivery of a virtual world that has a particular focus on facilitating decision-making at a community level within a national context. Copyright Taylor & Francis Numéro de notice : A2006-292 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810500432224 En ligne : https://doi.org/10.1080/13658810500432224 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28019
in International journal of geographical information science IJGIS > vol 20 n° 7 (august 2006) . - pp 727 - 741[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-06071 RAB Revue Centre de documentation En réserve L003 Disponible 079-06072 RAB Revue Centre de documentation En réserve L003 Disponible Local-government data sharing: evaluating the foundations of spatial data infrastructures / Francis Harvey in International journal of geographical information science IJGIS, vol 20 n° 7 (august 2006)
[article]
Titre : Local-government data sharing: evaluating the foundations of spatial data infrastructures Type de document : Article/Communication Auteurs : Francis Harvey, Auteur ; David Tulloch, Auteur Année de publication : 2006 Article en page(s) : pp 743 - 768 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] collectivité territoriale
[Termes IGN] Etats-Unis
[Termes IGN] infrastructure nationale des données localisées
[Termes IGN] partage de données localiséesRésumé : (Auteur) This paper presents a typology of local-government data sharing arrangements in the US at a time when spatial data infrastructures (SDI) are moving into a second generation. In the first generation, the US National Spatial Data Infrastructure (NSDI) theoretically involved a pyramid of data integration resting on local-government data sharing. Availability of local-government data is the foundation for all SDI-related data sharing in this model. However, first-generation SDI data-sharing activities and principles have gained only a tenuous hold in local governments. Some formalized data sharing occurs, but only infrequently in response to SDI programmes and policies. Previous research suggests that local-government data sharing aligns with immediate organizational and practical concerns rather than state or national policies and programmes. We present research findings echoing extending these findings to show that local-government data sharing is largely informal in nature and is undertaken to support existing governmental activities. NSDI principles remain simply irrelevant for the majority of surveyed local governments. The typology we present distinguishes four distinct types of local-government data sharing arrangements that reflect institutional, political, and economic factors. The effectiveness of second generation, client-service-based SDI will be seriously constrained if the problems of local government take-up fail to be addressed. Copyright Taylor & Francis Numéro de notice : A2006-293 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810600661607 En ligne : https://doi.org/10.1080/13658810600661607 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28020
in International journal of geographical information science IJGIS > vol 20 n° 7 (august 2006) . - pp 743 - 768[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-06071 RAB Revue Centre de documentation En réserve L003 Disponible 079-06072 RAB Revue Centre de documentation En réserve L003 Disponible Function matching for Soviet-era table-based modified polyconic projections / I. Oztug Bildirici in International journal of geographical information science IJGIS, vol 20 n° 7 (august 2006)
[article]
Titre : Function matching for Soviet-era table-based modified polyconic projections Type de document : Article/Communication Auteurs : I. Oztug Bildirici, Auteur ; Cengizhan Ipbuker, Auteur ; M. Yanalak, Auteur Année de publication : 2006 Article en page(s) : pp 769 - 795 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Projections
[Termes IGN] projection polyconiqueRésumé : (Auteur) Some map projections are defined by table values rather than mathematical equations. The most popular and famous one in this category is the Robinson Projection. The Ginzburg projections, which were developed and used in the former Soviet Union, are among the other table-based world projections. A computational method is required in order to efficiently use these kinds of projections in Geographic Information Systems (GIS) and similar environments. Function matching for projections based on table values can be realized for a numerical forward transformation. Matched functions also allow the calculation of distortions in the projection easily. In this study, polynomials and radial basis functions, such as multiquadric and thin-plate spline functions, are applied to derive an analytical expression from an array of tabular coordinates. The tests are realized on three table-based polyconic projections, the Ginzburg IV, V and VI. The distortion characteristics of table-based projections are sought by using partial derivatives obtained through numerical approximation. The distortion analysis shows that the Ginzburg V has very reasonable distortions. A solution for the inverse transformation of these projections is also provided. With the awareness of such projections, more alternatives in seeking a suitable map projection in world-scale GIS applications can be proposed. Copyright Taylor & Francis Numéro de notice : A2006-294 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/POSITIONNEMENT Nature : Article DOI : 10.1080/13658810600711303 En ligne : https://doi.org/10.1080/13658810600711303 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28021
in International journal of geographical information science IJGIS > vol 20 n° 7 (august 2006) . - pp 769 - 795[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-06071 RAB Revue Centre de documentation En réserve L003 Disponible 079-06072 RAB Revue Centre de documentation En réserve L003 Disponible Efficient regionalization techniques for socio-economic geographical units using minimum spanning trees / Renato Martins Assuncao in International journal of geographical information science IJGIS, vol 20 n° 7 (august 2006)
[article]
Titre : Efficient regionalization techniques for socio-economic geographical units using minimum spanning trees Type de document : Article/Communication Auteurs : Renato Martins Assuncao, Auteur ; M.C. Neves, Auteur ; G. Camara, Auteur ; et al., Auteur Année de publication : 2006 Article en page(s) : pp 797 - 811 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] algorithme STA
[Termes IGN] arbre (mathématique)
[Termes IGN] données socio-économiques
[Termes IGN] graphe
[Termes IGN] objet géographique
[Termes IGN] optimisation (mathématiques)
[Termes IGN] régionalisation (segmentation)Résumé : (Auteur) Regionalization is a classification procedure applied to spatial objects with an areal representation, which groups them into homogeneous contiguous regions. This paper presents an efficient method for regionalization. The first step creates a connectivity graph that captures the neighbourhood relationship between the spatial objects. The cost of each edge in the graph is inversely proportional to the similarity between the regions it joins. We summarize the neighbourhood structure by a minimum spanning tree (MST), which is a connected tree with no circuits. We partition the MST by successive removal of edges that link dissimilar regions. The result is the division of the spatial objects into connected regions that have maximum internal homogeneity. Since the MST partitioning problem is NP-hard, we propose a heuristic to speed up the tree partitioning significantly. Our results show that our proposed method combines performance and quality, and it is a good alternative to other regionalization methods found in the literature. Copyright Taylor & Francis. Numéro de notice : A2006-295 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810600665111 En ligne : https://doi.org/10.1080/13658810600665111 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28022
in International journal of geographical information science IJGIS > vol 20 n° 7 (august 2006) . - pp 797 - 811[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-06071 RAB Revue Centre de documentation En réserve L003 Disponible 079-06072 RAB Revue Centre de documentation En réserve L003 Disponible A first step towards a framework for presenting the location of confidential point data on maps: results of an empirical perceptual study / Michael Leitner in International journal of geographical information science IJGIS, vol 20 n° 7 (august 2006)
[article]
Titre : A first step towards a framework for presenting the location of confidential point data on maps: results of an empirical perceptual study Type de document : Article/Communication Auteurs : Michael Leitner, Auteur ; A. Curtis, Auteur Année de publication : 2006 Article en page(s) : pp 813 - 822 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie
[Termes IGN] conception cartographique
[Termes IGN] confidentialité
[Termes IGN] objet géographique ponctuel
[Termes IGN] perception
[Termes IGN] représentation cartographiqueRésumé : (Auteur) A common concern when working with health-related data is that national standard guidelines are designed to preserve individual statistical information, usually recorded as text or in a spreadsheet format (‘statistical confidentiality’), but lack appropriate rules for visualizing this information on maps (‘spatial confidentiality’). Privacy rules to protect spatial confidentiality become more and more important, as governmental agencies increasingly incorporate Geographic Information Systems (GIS) as a tool for collecting, storing, analysing, and disseminating spatial information. The purpose of this paper is to propose the first step of a general framework for presenting the location of confidential point data on maps using empirical perceptual research. The overall objective is to identify geographic masking methods that preserve both the confidentiality of individual locations, and at the same time the essential visual characteristics of the original point pattern. Copyright Taylor & Francis Numéro de notice : A2006-296 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810600711261 En ligne : https://doi.org/10.1080/13658810600711261 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28023
in International journal of geographical information science IJGIS > vol 20 n° 7 (august 2006) . - pp 813 - 822[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-06071 RAB Revue Centre de documentation En réserve L003 Disponible 079-06072 RAB Revue Centre de documentation En réserve L003 Disponible