Algorithmic Foundations of Geographic Information Systems [[electronic resource] /] / edited by Marc van Kreveld, Jürgen Nievergelt, Thomas Roos, Peter Widmayer

• Record Nr.: UNISA996465558503316
• Pubbl/distr/stampa: Berlin, Heidelberg : , : Springer Berlin Heidelberg : , : Imprint : Springer, , 1997
• ISBN: 3-540-69653-9
• Edizione: [1st ed. 1997.]
• Descrizione fisica: 1 online resource (XIV, 290 p.)
• Collana: Lecture Notes in Computer Science, , 0302-9743 ; ; 1340
• Disciplina: 910/.285
• Soggetti: Computers; Geographical information systems; Database management; Information storage and retrieval; Algorithms; Earth sciences; Theory of Computation; Geographical Information Systems/Cartography; Database Management; Information Storage and Retrieval; Algorithm Analysis and Problem Complexity; Earth Sciences, general
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Bibliographic Level Mode of Issuance: Monograph
• Nota di contenuto: to geometric computing: From algorithms to software -- Voronoi methods in GIS -- Digital elevation models and TIN algorithms -- Visualization of TINs -- Generalization of spatial data: Principles and selected algorithms -- Spatial data structures: Concepts and design choices -- Space filling curves versus random walks -- External-memory algorithms with applications in GIS -- Precision and robustness in geometric computations.
• Sommario/riassunto: This tutorial survey brings together two lines of research and development whose interaction promises to have significant practical ; impact on the area of spatial information processing in the near future: geographic information systems (GIS) and geometric computation or, more particularly, geometric algorithms and spatial data structures. In nine uniformly structured and coherent chapters, the authors present a unique survey ranging from the history and basic characteristics to current issues of precision and robustness of geometric computing. This textbook is ideally suited for advanced courses on GIS and applied geometric algorithms. Research and design professionals active in the area will find it valuable as a state-of-the-art survey.

Les dépenses de consommation des ménages en biens et services culturels et télécommunications / / Chantal Lacroix

• Record Nr.: UNINA9910131377403321
• Autore: Lacroix Chantal
• Pubbl/distr/stampa: Paris, : Département des études, de la prospective et des statistiques, 2014
• ISBN: 2-11-139843-8
• Descrizione fisica: 1 online resource (8 p.)
• Soggetti: Sociology; Cultural studies; consommation culturelle; équipement culturel; consommation des ménages; pratiques culturelles; statistiques culturelles; TIC; cultural expenditure; households expenditure; cultural institution; cultural participation; cultural statistics; ICT
• Lingua di pubblicazione: Francese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Sommario/riassunto: Depuis cinquante ans, la structure des dépenses des ménages a considérablement évolué. La culture, les loisirs et les télécommunications font partie des postes dont la part relative au sein du budget des 27,4 millions de ménages français a progressé. Les données de la comptabilité nationale pour 2007 ont permis une analyse détaillée de l’évolution des dépenses culturelles et de la part des différents postes : biens et services culturels, matériels et biens et services liés aux équipements, télécommunications. The structure of expenditures has considerably changed since fifty years. Culture, recreation and telecommunications expenditures have increased in the 27.4 million French's budget. Data from the national accounts for 2007 provide analysis of the evolution of cultural expenditures: cultural goods and services, equipment, goods and services related to equipment, telecommunications.