Centre de documentation
scientifique

Spaceborne synthetic aperture radar data focusing on multicore-based architectures / Pasquale Imperatore in IEEE Transactions on geoscience and remote sensing, vol 54 n° 8 (August 2016)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 54 n° 8 (August 2016) . - pp 4712 - 4731 Titre : Spaceborne synthetic aperture radar data focusing on multicore-based architectures Type de document : Article/Communication Auteurs : Pasquale Imperatore, Auteur ; Antonio Pepe, Auteur ; Riccardo Lanari, Auteur Année de publication : 2016 Article en page(s) : pp 4712 - 4731 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] architecture orientée services [Termes IGN] données multisources [Termes IGN] focalisation [Termes IGN] image radar moirée [Termes IGN] implémentation (informatique) [Termes IGN] partage de données localisées [Termes IGN] processeur multicoeur Résumé : (Auteur) This paper describes a general-purpose parallel scheme for efficiently focusing synthetic aperture radar (SAR) data on multicore-based shared-memory architectures. The rationale of the proposed tiling-based parallel focusing model is first discussed, and then, its implementation structure is illustrated. The adopted parallel solution, which is based on a canonical processing pattern, exploits a segmented-block-based approach and works successfully on data acquired by different spaceborne SAR platforms. Insofar as a significant portion of the focusing algorithm is amenable to tiling, our approach decomposes the problem into simpler subproblems of the same type, also providing a suitable mechanism to explicitly control the granularity of computation through the proper specification of the tiling at the different stages of the algorithm itself. Relevant implementation makes use of multithreading and high-performance libraries. Achievable performances are then experimentally investigated by quantifying the benefit of the parallelism incorporated into the prototype solution, thus demonstrating the validity of our approach. Accordingly, canonical performance metrics have been evaluated, and the pertinent scalability has been examined on different multicore architectures. Furthermore, in order to emphasize the practical ability of the proposed parallel model implementation to efficiently deal with data of different SAR sensors, a performance analysis has been carried out in different realistic scenarios including data acquired by the Envisat/ASAR, RADARSAT-1, and COSMO-SkyMed platforms. Numéro de notice : A2016-889 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2016.2550201 En ligne : https://doi.org/10.1109/TGRS.2016.2550201 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83069 [article]

The story of DB4GeO – A service-based geo-database architecture to support multi-dimensional data analysis and visualization / Martin Breunig in ISPRS Journal of photogrammetry and remote sensing, vol 117 (July 2016)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 117 (July 2016) . - pp 187 – 205 Titre : The story of DB4GeO – A service-based geo-database architecture to support multi-dimensional data analysis and visualization Type de document : Article/Communication Auteurs : Martin Breunig, Auteur ; Paul Vincent Kuper, Auteur ; Edgar Butwilowski, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 187 – 205 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] architecture orientée services [Termes IGN] données 4D [Termes IGN] données localisées 3D [Termes IGN] données multidimensionnelles [Termes IGN] données spatiotemporelles [Termes IGN] exploration de données [Termes IGN] géodatabase [Termes IGN] géovisualisation [Termes IGN] modèle conceptuel de données localisées [Termes IGN] service web géographique Résumé : (auteur) Multi-dimensional data analysis and visualization need efficient data handling to archive original data, to reproduce results on large data sets, and to retrieve space and time partitions just in time. This article tells the story of more than twenty years research resulting in the development of DB4GeO, a web service-based geo-database architecture for geo-objects to support the data handling of 3D/4D geo-applications. Starting from the roots and lessons learned, the concepts and implementation of DB4GeO are described in detail. Furthermore, experiences and extensions to DB4GeO are presented. Finally, conclusions and an outlook on further research also considering 3D/4D geo-applications for DB4GeO in the context of Dubai 2020 are given. Numéro de notice : A2016-585 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2015.12.006 En ligne : https://doi.org/10.1016/j.isprsjprs.2015.12.006 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81726 [article]

Evaluation and monitoring of service quality: discussing ways to meet INSPIRE requirements / Christian Selp in Transactions in GIS, vol 20 n° 2 (April 2016)  

Public [article]  inTransactions in GIS > vol 20 n° 2 (April 2016) . - pp 163 – 181 Titre : Evaluation and monitoring of service quality: discussing ways to meet INSPIRE requirements Type de document : Article/Communication Auteurs : Christian Selp, Auteur ; Ralf Bill, Auteur Année de publication : 2016 Article en page(s) : pp 163 – 181 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données [Termes IGN] Allemagne [Termes IGN] architecture orientée services [Termes IGN] infrastructure européenne de données localisées [Termes IGN] INSPIRE Résumé : (auteur) Service oriented architectures (SOA) are widely used nowadays. As the name implies such architectures rely on services. Germany developed a marine-specific service oriented data infrastructure (MDI-DE – Marine Dateninfrastruktur Deutschland) from 2010 to 2013. The services in MDI-DE can contribute to fulfilling reporting commitments for various European and national legislation. The services of MDI-DE (just like other services affected, for instance, by INSPIRE) have to meet specific requirements regarding performance, availability and conformity (quality of service, QoS). Although SOA is an important field in scientific research there are very few publications and studies available on QoS, especially regarding INSPIRE requirements. The services of MDI-DE were analyzed using various existing tools. Their usefulness to reflect where either the aspect's performance, availability or conformity needs improvement was partly verified. Due to varying results and the neglect of some services for various reasons it can be stated that the more tools are used, the more conclusive the outcome. Furthermore, service quality was not coherent when measured with different tools. This means that measuring QoS in terms of INSPIRE will be very difficult to do in the future and there is the danger that people will choose the tools with which their services perform best. Numéro de notice : A2016-448 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12145 En ligne : http://dx.doi.org/10.1111/tgis.12145 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81357 [article]

Service-oriented model-encapsulation strategy for sharing and integrating heterogeneous geo-analysis models in an open web environment / Songshan Yue in ISPRS Journal of photogrammetry and remote sensing, vol 114 (April 2016)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 114 (April 2016) . - pp 258 – 273 Titre : Service-oriented model-encapsulation strategy for sharing and integrating heterogeneous geo-analysis models in an open web environment Type de document : Article/Communication Auteurs : Songshan Yue, Auteur ; Min Chen, Auteur ; Yongning Wen, Auteur ; Guonian Lu, Auteur Année de publication : 2016 Article en page(s) : pp 258 – 273 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] analyse spatiale [Termes IGN] architecture orientée services [Termes IGN] code source libre [Termes IGN] encapsulation [Termes IGN] informatique en nuage [Termes IGN] modèle analytique [Termes IGN] plateforme logicielle [Termes IGN] service web [Termes IGN] web des données [Termes IGN] Web Processing Service Résumé : (auteur) Earth environment is extremely complicated and constantly changing; thus, it is widely accepted that the use of a single geo-analysis model cannot accurately represent all details when solving complex geo-problems. Over several years of research, numerous geo-analysis models have been developed. However, a collaborative barrier between model providers and model users still exists. The development of cloud computing has provided a new and promising approach for sharing and integrating geo-analysis models across an open web environment. To share and integrate these heterogeneous models, encapsulation studies should be conducted that are aimed at shielding original execution differences to create services which can be reused in the web environment. Although some model service standards (such as Web Processing Service (WPS) and Geo Processing Workflow (GPW)) have been designed and developed to help researchers construct model services, various problems regarding model encapsulation remain. (1) The descriptions of geo-analysis models are complicated and typically require rich-text descriptions and case-study illustrations, which are difficult to fully represent within a single web request (such as the GetCapabilities and DescribeProcess operations in the WPS standard). (2) Although Web Service technologies can be used to publish model services, model users who want to use a geo-analysis model and copy the model service into another computer still encounter problems (e.g., they cannot access the model deployment dependencies information). This study presents a strategy for encapsulating geo-analysis models to reduce problems encountered when sharing models between model providers and model users and supports the tasks with different web service standards (e.g., the WPS standard). A description method for heterogeneous geo-analysis models is studied. Based on the model description information, the methods for encapsulating the model-execution program to model services and for describing model-service deployment information are also included in the proposed strategy. Hence, the model-description interface, model-execution interface and model-deployment interface are studied to help model providers and model users more easily share, reuse and integrate geo-analysis models in an open web environment. Finally, a prototype system is established, and the WPS standard is employed as an example to verify the capability and practicability of the model-encapsulation strategy. The results show that it is more convenient for modellers to share and integrate heterogeneous geo-analysis models in cloud computing platforms. Numéro de notice : A2016-537 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2015.11.002 En ligne : https://doi.org/10.1016/j.isprsjprs.2015.11.002 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81681 [article]

Unlock the value of network data / Michael Baker in GEO: Geoconnexion international, vol 15 n° 4 (April 2016)

Public [article]  inGEO: Geoconnexion international > vol 15 n° 4 (April 2016) . - pp 38 - 39 Titre : Unlock the value of network data Type de document : Article/Communication Auteurs : Michael Baker, Auteur Année de publication : 2016 Article en page(s) : pp 38 - 39 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web [Termes IGN] architecture orientée services [Termes IGN] diffusion de données [Termes IGN] plateforme logicielle [Termes IGN] portail [Termes IGN] service web [Termes IGN] WebSIG Résumé : (éditeur) WEB services, portals and service-oriented architectures offer utility companies the chance to provide information to anyone who needs it on whatever platforms they want it. Numéro de notice : A2016-192 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80626 [article]

T-Warehousing for hazardous materials transportation / A. Boulmakoul in Ingénierie des systèmes d'information, ISI : Revue des sciences et technologies de l'information, RSTI, vol 21 n° 1 (janvier - février 2016)  

Permalink

A service-oriented architecture to enable participatory planning: an e-planning platform / M. Ebrahim Poorazizi in International journal of geographical information science IJGIS, vol 29 n° 7 (July 2015)  

Permalink

Forming a global monitoring mechanism and a spatiotemporal performance model for geospatial services / Jizhe Xia in International journal of geographical information science IJGIS, vol 29 n° 3 (March 2015)  

Permalink

A generic geovisualization model for spatial OLAP and its implementation in a standards-based architecture / Sandro Bimonte in Ingénierie des systèmes d'information, ISI : Revue des sciences et technologies de l'information, RSTI, vol 19 n° 5 (septembre - octobre 2014)  

Permalink

Context-based mobile GeoBI: enhancing business analysis with contextual metrics/statistics and context-based reasoning / Belko Abdoul Aziz Diallo in Geoinformatica, vol 18 n° 2 (April 2014)  

Permalink

Mise en place d'une Infrastructure de Données Géographiques à la RATP : étude de faisabilité / Loïc Grondin (2014) 

Permalink

Moving code – Sharing geoprocessing logic on the Web / Matthias Müller in ISPRS Journal of photogrammetry and remote sensing, vol 83 (September 2013)  

Permalink

WSCS : un service web de contexte spatial dédié aux téléphones intelligents dans le cadre de jeux éducatifs / Elodie Edoh-Alove in Revue internationale de géomatique, vol 23 n° 2 (juin - aout 2013)  

Permalink

A catalogue service for internet GIServices supporting active service evaluation and real-time quality monitoring / Shengyu Shen in Transactions in GIS, vol 16 n° 6 (December 2012)  

Permalink

Services web et topographie / M. Koehl in XYZ, n° 130 (mars - mai 2012) 

Permalink