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Integrating discrete and continuous data in an OpenGeospatial-compliant specification / L. Paolino in Transactions in GIS, vol 14 n° 6 (December 2010)  

Public [article]  inTransactions in GIS > vol 14 n° 6 (December 2010) . - pp 731 - 753 Titre : Integrating discrete and continuous data in an OpenGeospatial-compliant specification Type de document : Article/Communication Auteurs : L. Paolino, Auteur ; G. Tortora, Auteur ; M. Sebillo, Auteur ; G. Vitiello, Auteur Année de publication : 2010 Article en page(s) : pp 731 - 753 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique [Termes IGN] classe d'objets [Termes IGN] données hétérogènes [Termes IGN] données localisées des bénévoles [Termes IGN] intégration de données [Termes IGN] logiciel libre [Termes IGN] quantité continue [Termes IGN] quantité discrète [Termes IGN] système de gestion de base de données Résumé : (Auteur) The integrated management of heterogeneous spatial data, such as continuous fields and discrete data, is an important issue for the Geographic Information (GI) community. Indeed, GI users are forced to navigate among and operate with several tools in order to solve their spatial problems, due to the lack of systems capable of integrating different components, each meant to provide a specific solution. The aim of this article is to propose an OpenGeospatial-compliant solution which supports expert users in handling problems involving heterogeneous data by means of a seamless approach. A class hierarchy modeling spatial discrete objects, continuous data, relationships, and operations, is described, whereby data are organized in agreement with the binary representation. A running example is illustrated to support readers' understanding of the proposed solution. Finally, some guidelines about an implementation modality are given, to demonstrate the applicability of the proposal to an existing DBMS. Numéro de notice : A2010-514 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE/SOCIETE NUMERIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2010.01231.x Date de publication en ligne : 07/12/2010 En ligne : https://doi.org/10.1111/j.1467-9671.2010.01231.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30706 [article]

GeoPW : Laying Blocks for the Geospatial Processing Web / P. Yue in Transactions in GIS, vol 14 n° 6 (December 2010)  

Public [article]  inTransactions in GIS > vol 14 n° 6 (December 2010) . - pp 755 - 772 Titre : GeoPW : Laying Blocks for the Geospatial Processing Web Type de document : Article/Communication Auteurs : P. Yue, Auteur ; L. Di, Auteur ; J. Gong, Auteur ; J. Yuan, Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : pp 755 - 772 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] géomatique web [Termes IGN] implémentation (informatique) [Termes IGN] logiciel libre [Termes IGN] partage de données localisées [Termes IGN] traitement de données localisées [Termes IGN] WebSIG Résumé : (Auteur) Recent advances in Web-related technologies have significantly promoted the wide sharing and integrated analysis of distributed geospatial data. Geospatial applications often involve diverse sources of data and complex geoprocessing functions. Existing Web-based GIS focuses more on access to distributed geospatial data. In scientific problem solving, the ability to carry out geospatial analysis is essential to geoscientific discovery. This article presents the design and implementation of GeoPW, a set of services providing geoprocessing functions over the Web. The concept of the Geospatial Processing Web is discussed to address the geoprocessing demands in the emerging information infrastructure, and the role of GeoPW in establishing the Geospatial Processing Web is identified. The services in GeoPW are implemented by developing middleware that wraps legacy GIS analysis components to provide a large number of geoprocessing utilities over the Web. These services are open and accessible to the public, and they support integrated geoprocessing on the Web. Numéro de notice : A2010-515 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2010.01232.x Date de publication en ligne : 07/12/2010 En ligne : https://doi.org/10.1111/j.1467-9671.2010.01232.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30707 [article]

Mobile Visibility Querying for LBS / J. Carswell in Transactions in GIS, vol 14 n° 6 (December 2010)  

Public [article]  inTransactions in GIS > vol 14 n° 6 (December 2010) . - pp 791 - 809 Titre : Mobile Visibility Querying for LBS Type de document : Article/Communication Auteurs : J. Carswell, Auteur ; J. Yin, Auteur ; K. Gardiner, Auteur Année de publication : 2010 Article en page(s) : pp 791 - 809 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Navigation et positionnement [Termes IGN] ligne de visée [Termes IGN] orientation du capteur [Termes IGN] position [Termes IGN] positionnement par GPS [Termes IGN] service fondé sur la position [Termes IGN] téléphone intelligent [Termes IGN] téléphonie mobile Résumé : (Auteur) This article describes research carried out in the area of mobile spatial interaction (MSI) and the development of a 3D mobile version of a 2D web-based directional query processor. The TellMe application integrates location (from GPS, GSM, WiFi) and orientation (from magnetometer/accelerometer) sensor technologies into an enhanced spatial query processing module capable of exploiting a mobile device's position and orientation for querying real-world spatial datasets. This article outlines our technique for combining these technologies and the architecture needed to deploy them on a sensor enabled smartphone (i.e. Nokia Navigator 6210). With all these sensor technologies now available on off-the-shelf devices, it is possible to employ a mobile query system that can work effectively in any environment using location and orientation as primary parameters for directional queries. Novel approaches for determining a user's visible query space in three dimensions based on their line-of-sight (ego-visibility) are investigated to provide for “hidden query removal” functionality. This article presents demonstrable results of a mobile application that is location, direction, and orientation aware, and that retrieves database objects and attributes (e.g. buildings, points-of-interest, etc.) by simply pointing, or “looking”, at them with a mobile phone. Numéro de notice : A2010-516 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2010.01230.x Date de publication en ligne : 07/12/2010 En ligne : https://doi.org/10.1111/j.1467-9671.2010.01230.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30708 [article]