Descripteur
Documents disponibles dans cette catégorie (1477)
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
Matching INSPIRE quality of service requirements with hybrid clouds / B. Baranski in Transactions in GIS, vol 15 supplement s1 (July 2011)
[article]
Titre : Matching INSPIRE quality of service requirements with hybrid clouds Type de document : Article/Communication Auteurs : B. Baranski, Auteur ; B. Schäffer, Auteur ; Theodor Foerster, Auteur ; K. Lange, Auteur Année de publication : 2011 Article en page(s) : pp 125 - 142 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] base de données répartie
[Termes IGN] données localisées des bénévoles
[Termes IGN] implémentation (informatique)
[Termes IGN] informatique en nuage
[Termes IGN] infrastructure nationale des données localisées
[Termes IGN] intégration de données
[Termes IGN] qualité de serviceRésumé : (Auteur) A lot of effort has been invested in Spatial Data Infrastructures (SDIs) during the last decade regarding interoperable standards for services and data. But still the scalability and performance of SDI services is reported to be crucial especially if they are accessed concurrently by a high number of users. Furthermore, laws and provisions such as the INSPIRE directive specify challenging requirements regarding the performance, availability and scalability of SDI services. This article presents a Hybrid Cloud architecture for matching INSPIRE-related Quality of Service (QoS) requirements, without investing in rarely used hardware in advance, by occupying external third-party resources on a pay-as-you-go basis. The presented Hybrid Cloud is a composition of a local IT-infrastructure (Private Cloud) and the computational resources of third-party vendors (Public Cloud). The local infrastructure is laid out to handle the average main load of a service and in lasting peak times additional resources of external providers are allocated and integrated on demand into the local infrastructure to provide sufficient service quality automatically. A proof-of-concept implementation of the proposed Hybrid Cloud approach is evaluated and benchmarked with respect to INSPIRE-related QoS requirements. Numéro de notice : A2011-254 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/SOCIETE NUMERIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2011.01265.x Date de publication en ligne : 09/06/2011 En ligne : https://doi.org/10.1111/j.1467-9671.2011.01265.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31032
in Transactions in GIS > vol 15 supplement s1 (July 2011) . - pp 125 - 142[article]A new GIScience application for visualized natural resources management and decision support / Y. Yang in Transactions in GIS, vol 15 supplement s1 (July 2011)
[article]
Titre : A new GIScience application for visualized natural resources management and decision support Type de document : Article/Communication Auteurs : Y. Yang, Auteur ; Y. Lin, Auteur Année de publication : 2011 Article en page(s) : pp 109 - 124 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] consommation
[Termes IGN] eau souterraine
[Termes IGN] impact sur l'environnement
[Termes IGN] interface graphique
[Termes IGN] outil d'aide à la décision
[Termes IGN] requête spatiale
[Termes IGN] ressources en eau
[Termes IGN] risque naturel
[Termes IGN] WebSIGRésumé : (Auteur) This article presents two decision support plug-ins in free GIS software: ArcGIS Explorer Desktop. The ubiquitous WebGIS Analysis Toolkit for Extensive Resources (uWATER) focuses on providing GIS analysis functions: spatial and attribute queries in the public services tool for users with limited access to commercial GIS software. The interface of uWATER is general enough to support decision-making in numerous management issues in natural resources, economics and agriculture. The uWATER-Pumping Assessment (uWATER-PA) toolkit, on the other hand, is an extended package targeting the specific environmental issue of groundwater pumping impacts. The uWATER-PA package is an excellent alternative to evaluating complex groundwater pumping assessment issues before investing significant time, labor, and funds in monitoring and detailed scientific study. It incorporates simulation of the physics of groundwater flow and user interaction into GIS software. A graphical user interface makes both data entry and interpretation of results intuitive to non-technical individuals. Results are presented as colored drawdown maps and can be saved in GIS format for future dissemination. The impact of drawdown on existing wells can be characterized and mapped, through the use of uWATER's spatial query capabilities and the drawdown maps generated by uWATER-PA. Numéro de notice : A2011-253 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2011.01267.x Date de publication en ligne : 09/06/2011 En ligne : https://doi.org/10.1111/j.1467-9671.2011.01267.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31031
in Transactions in GIS > vol 15 supplement s1 (July 2011) . - pp 109 - 124[article]Query-aware location anonymization for road networks / C. Chow in Geoinformatica, vol 15 n° 3 (July 2011)
[article]
Titre : Query-aware location anonymization for road networks Type de document : Article/Communication Auteurs : C. Chow, Auteur ; M. Mokbel, Auteur ; Jie Bao, Auteur ; X. Liu, Auteur Année de publication : 2011 Article en page(s) : pp 571 - 607 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] espace euclidien
[Termes IGN] requête spatiale
[Termes IGN] réseau routier
[Termes IGN] service fondé sur la positionRésumé : (Auteur) Recently, several techniques have been proposed to protect the user location privacy for location-based services in the Euclidean space. Applying these techniques directly to the road network environment would lead to privacy leakage and inefficient query processing. In this paper, we propose a new location anonymization algorithm that is designed specifically for the road network environment. Our algorithm relies on the commonly used concept of spatial cloaking, where a user location is cloaked into a set of connected road segments of a minimum total length L including at least K users. Our algorithm is “query-aware” as it takes into account the query execution cost at a database server and the query quality, i.e., the number of objects returned to users by the database server, during the location anonymization process. In particular, we develop a new cost function that balances between the query execution cost and the query quality. Then, we introduce two versions of our algorithm, namely, pure greedy and randomized greedy, that aim to minimize the developed cost function and satisfy the user specified privacy requirements. To accommodate intervals with a high workload, we introduce a shared execution paradigm that boosts the scalability of our location anonymization algorithm and the database server to support large numbers of queries received in a short time period. Extensive experimental results show that our algorithms are more efficient and scalable than the state-of-the-art technique, in terms of both query execution cost and query quality. The results also show that our algorithms have very strong resilience to two privacy attacks, namely, the replay attack and the center-of-cloaked-area attack. Numéro de notice : A2011-212 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-010-0117-0 Date de publication en ligne : 06/11/2010 En ligne : https://doi.org/10.1007/s10707-010-0117-0 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30990
in Geoinformatica > vol 15 n° 3 (July 2011) . - pp 571 - 607[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 057-2011031 RAB Revue Centre de documentation En réserve L003 Disponible
[article]
Titre : Spatiotemporal pattern queries Type de document : Article/Communication Auteurs : M. Sakr, Auteur ; Ralf Hartmut Güting, Auteur Année de publication : 2011 Article en page(s) : pp 497 - 540 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] base de données spatiotemporelles
[Termes IGN] C++
[Termes IGN] langage de requête
[Termes IGN] module d'extension
[Termes IGN] objet mobile
[Termes IGN] requête spatiotemporelle
[Termes IGN] SQL
[Termes IGN] système de gestion de base de donnéesRésumé : (Auteur) This paper presents a novel approach to express and evaluate the complex class of queries in moving object databases called spatiotemporal pattern queries (STP queries). That is, one can specify temporal order constraints on the fulfillment of several predicates. This is in contrast to a standard spatiotemporal query that is composed of a single predicate. We propose a language design for spatiotemporal pattern queries in the context of spatiotemporal DBMSs. The design builds on the well established concept of lifted predicates. Hence, unlike previous approaches, patterns are neither restricted to specific sets of predicates, nor to specific moving object types. The proposed language can express arbitrarily complex patterns that involve various types of spatiotemporal operations such as range, metric, topological, set operations, aggregations, distance, direction, and boolean operations. This work covers the language integration in SQL, the evaluation of the queries, and the integration with the query optimizer. We also propose a simple language for defining the temporal constraints. The approach allows for queries that were never available. We provide a complete implementation in C++ and Prolog in the context of the Secondo platform. The implementation is made publicly available online as a Secondo Plugin, which also includes automatic scripts for repeating the experiments in this paper. Numéro de notice : A2011-210 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-010-0114-3 Date de publication en ligne : 12/08/2010 En ligne : https://doi.org/10.1007/s10707-010-0114-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30988
in Geoinformatica > vol 15 n° 3 (July 2011) . - pp 497 - 540[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 057-2011031 RAB Revue Centre de documentation En réserve L003 Disponible The partial sequenced route query with traveling rules in road networks / H. Chen in Geoinformatica, vol 15 n° 3 (July 2011)
[article]
Titre : The partial sequenced route query with traveling rules in road networks Type de document : Article/Communication Auteurs : H. Chen, Auteur ; W. Ku, Auteur ; M. Sun, Auteur ; R. Zimmermann, Auteur Année de publication : 2011 Article en page(s) : pp 541 - 569 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] calcul d'itinéraire
[Termes IGN] itinéraire
[Termes IGN] point d'intérêt
[Termes IGN] requête spatiale
[Termes IGN] réseau routier
[Termes IGN] service fondé sur la positionRésumé : (Auteur) In modern geographic information systems, route search represents an important class of queries. In route search related applications, users may want to define a number of traveling rules (traveling preferences) when they plan their trips. However, these traveling rules are not considered in most existing techniques. In this paper, we propose a novel spatial query type, the multi-rule partial sequenced route (MRPSR) query, which enables efficient trip planning with user defined traveling rules. The MRPSR query provides a unified framework that subsumes the well-known trip planning query (TPQ) and the optimal sequenced route (OSR) query. The difficulty in answering MRPSR queries lies in how to integrate multiple choices of points-of-interest (POI) with traveling rules when searching for satisfying routes. We prove that MRPSR query is NP-hard and then provide three algorithms by mapping traveling rules to an activity on vertex network. Afterwards, we extend all the proposed algorithms to road networks. By utilizing both real and synthetic POI datasets, we investigate the performance of our algorithms. The results of extensive simulations show that our algorithms are able to answer MRPSR queries effectively and efficiently with underlying road networks. Compared to the Light Optimal Route Discoverer (LORD) based brute-force solution, the response time of our algorithms is significantly reduced while the distances of the computed routes are only slightly longer than the shortest route. Numéro de notice : A2011-211 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-010-0115-2 Date de publication en ligne : 03/09/2010 En ligne : https://doi.org/10.1007/s10707-010-0115-2 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30989
in Geoinformatica > vol 15 n° 3 (July 2011) . - pp 541 - 569[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 057-2011031 RAB Revue Centre de documentation En réserve L003 Disponible Analyses linguistiques et techniques d’alignement pour créer et enrichir une ontologie topographique / Sébastien Mustière in Revue internationale de géomatique, vol 21 n° 2 (juin - août 2011)PermalinkUne base de données unique en France de cubages d’arbres individuels (volumes, biomasses) au service d’une modélisation générique de la ressource en bois énergie / Michaël Rivoire in Revue forestière française, vol 63 n° 2 (2011)PermalinkNIBU: An integrated framework for representing the relation among building structure and interior utilities in micro-scale environment / Ihab Hijazi in Geo-spatial Information Science, vol 14 n° 2 (01/06/2011)PermalinkSolutions for 4D cadastre - with a case study on utility networks / F. Döner in International journal of geographical information science IJGIS, vol 25 n° 6-7 (june - july 2011)PermalinkCartoMundi, collectio chartarum orbe terrae / Jean-Luc Arnaud in Géomatique expert, n° 80 (01/05/2011)PermalinkApproche géosémantique intégrée pour les cubes évolutifs de données géospatiales / Mohamed Bakillah in Revue internationale de géomatique, vol 21 n° 1 (mars – mai 2011)PermalinkCollaborative web-GIS design: a case study for road risk analysis and monitoring / Francesco Pirotti in Transactions in GIS, vol 15 n° 2 (April 2011)PermalinkHistorical land use as a feature for image classification / Jorge Abel Recio in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 4 (April 2011)PermalinkInterpreting motion events of pairs of moving objects / B. Gottfried in Geoinformatica, vol 15 n° 2 (April 2011)PermalinkAutomatic revision of the control knowledge used by trial and error methods: Application to cartographic generalisation / Patrick Taillandier in Applied soft computing, vol 11 n° 2 (March 2011)PermalinkModelling and analysing 3D buildings with a primal/dual data structure / P. Boguslawski in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)PermalinkA multiple representation data structure for dynamic visualisation of generalised 3D city models / B. Mao in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 2 (March - April 2011)PermalinkPostGIS pour les néophytes (3ème partie) : Géométries, création de tables et opérateurs élémentaires / Anonyme in Géomatique expert, n° 79 (01/03/2011)Permalinkvol 66 n° 2 - March - April 2011 - Quality, scale and analysis aspects of urban city models (Bulletin de ISPRS Journal of photogrammetry and remote sensing) / Monika SesterPermalinkThemaMap : Un outil de cartographie thématique des séries statistiques / G. Domalain in Le monde des cartes, n° 207 (mars 2011)PermalinkAnalyse spatiale de l'information géographique / R. Caloz (2011)PermalinkFunctional description of geoprocessing services as conjunctive datalog queries / D. Fitzner in Geoinformatica, vol 15 n° 1 (January 2011)PermalinkIntégration de la thermographie aérienne dans le SIG de la ville de Vincennes / M. Marie (2011)PermalinkMise en cohérence de bases de données du SIG et mise en place d'un catalogue de métadonnées / Virginie Six (2011)PermalinkL'occupation du sol fait ses preuves en région / Françoise de Blomac in SIG la lettre, n° 123 (janvier 2011)PermalinkProgrammer en Java [6ème édition, Java 5 et 6] / C. Delannoy (2011)PermalinkLes techniques de positionnement au service des paléontologues, les travaux de l'ENSG sur la Caune de l'Arago / Laure Chandelier in Revue Française de Photogrammétrie et de Télédétection, n° 193 (Janvier 2011)PermalinkPermalinkLa carte forestière sans papier / Thierry Touzet in Le monde des cartes, n° 206 (décembre 2010)PermalinkDe l'herbier à la carte : Représentation cartographique des collections et des données botaniques / J.L. Guillaumet in Le monde des cartes, n° 206 (décembre 2010)PermalinkIntegrating discrete and continuous data in an OpenGeospatial-compliant specification / L. Paolino in Transactions in GIS, vol 14 n° 6 (December 2010)PermalinkUn point sur les formalismes ER [Entités-Relations] et OO [Orientés-Objet] pour les systèmes d'information spatiale / F. Pinet in Revue internationale de géomatique, vol 20 n° 4 (décembre 2010 – février 2011)PermalinkUnderstanding chorematic diagrams : towards a taxonomy / Andreas W. Reimer in Cartographic journal (the), vol 47 n° 4 (November 2010)PermalinkAn integrated approach for visual analysis of a multisource moving objects knowledge base / N. Wllems in International journal of geographical information science IJGIS, vol 24 n° 10 (october 2010)PermalinkGéodécisionnel : y'en a pour tous les goûts / Françoise de Blomac in SIG la lettre, n° 120 (octobre 2010)PermalinkIRSJ : incremental refining spatial joins for interactive queries in GIS / W. Bae in Geoinformatica, vol 14 n° 4 (October 2010)PermalinkThe FOSS4G 2010 conference: fitting a global trend / J. Ticheler in Geoinformatics, vol 13 n° 7 (01/10/2010)PermalinkTightly-coupled spatial database features in the odysseus/OpenGIS DBMS for high-performance / K. Whang in Geoinformatica, vol 14 n° 4 (October 2010)PermalinkConception d'un observatoire pour le développement territorial : Cas de la Guinée forestière / A. Camara in Revue internationale de géomatique, vol 20 n° 3 (septembre - novembre 2010)PermalinkSuivi actualisé d'indicateurs agricoles parcellaires sur des zones de protection de captages d'eau potable / V. Dardare in Géomatique expert, n° 76 (01/09/2010)PermalinkRelation modelling within multiple representation databases and generalisation services / Dirk Burghardt in Cartographic journal (the), vol 47 n° 3 (August 2010)PermalinkAn object-oriented shared data model for GIS and distributed hydrologic models / Muneendra Kumar in International journal of geographical information science IJGIS, vol 24 n°7-8 (july 2010)PermalinkAnchor uncertainty and space-time prisms on road networks / Bart Kuijpers in International journal of geographical information science IJGIS, vol 24 n°7-8 (july 2010)PermalinkConstrained free space diagrams: a tool for trajectory analysis / Kevin Buchin in International journal of geographical information science IJGIS, vol 24 n°7-8 (july 2010)PermalinkExploiting geographic references of documents in a geographical information retrieval system using an ontology-based index / N. Brisaboa in Geoinformatica, vol 14 n° 3 (July 2010)PermalinkA knowledge infrastructure for intelligent query answering in Location-based Services / S Yu in Geoinformatica, vol 14 n° 3 (July 2010)PermalinkOntologies and database management system technology for The National Map / N. Wiegand in Cartographica, vol 45 n° 2 (June 2010)PermalinkSpatio-temporal trajectory analysis of mobile objects following the same itinerary / Laurent Etienne (26/05/2010)PermalinkAlgorithms for constrained k-nearest neighbor queries over moving object trajectories / Yunjun Gao in Geoinformatica, vol 14 n° 2 (April 2010)PermalinkEfficient evaluation of continuous spatio-temporal queries on moving objects whith uncertain velocity / Y. Huang in Geoinformatica, vol 14 n° 2 (April 2010)Permalink