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Enabling maps/location searches on mobile devices: constructing a POI database via focused crawling and information extraction / Hsiu-Min Chuang in International journal of geographical information science IJGIS, vol 30 n° 7- 8 (July - August 2016)
[article]
Titre : Enabling maps/location searches on mobile devices: constructing a POI database via focused crawling and information extraction Type de document : Article/Communication Auteurs : Hsiu-Min Chuang, Auteur ; Chia-Hui Chang, Auteur ; Ting-Yao Kao, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 1405 - 1425 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] exploration de données
[Termes IGN] extraction de données
[Termes IGN] point d'intérêt
[Termes IGN] positionnement automatique
[Termes IGN] recherche d'information
[Termes IGN] service fondé sur la position
[Termes IGN] téléphonie mobileRésumé : (Auteur) With the popularity of mobile devices and smartphones, we have witnessed rapid growth in mobile applications and services, especially in location-based services (LBS). According to a mobile marketing survey, maps/location searches are among the most utilized services on smartphones. Points of interest (POIs), such as stores, shops, gas stations, parking lots, and bus stops, are particularly important for maps/location searches. Existing map services such as Google Maps and Wikimapia are constructed manually either professionally or with crowd sourcing. However, manual annotation is costly and limited in current POI search services. With the abundance of information on the Web, many store POIs can be extracted from the Web. In this paper, we focus on automatically constructing a POI database to enable store POI map searches. We propose techniques that are required to construct a POI database, including focused crawling, information extraction, and information retrieval techniques. We first crawl Yellow Page web sites to obtain vocabularies of store names. These vocabularies are then investigated with search engines to obtain sentences containing these store names from search snippets in order to train a store name recognition model. To extract POIs scattered across the Web, we propose a query-based crawler to find address-bearing pages that might be used to extract addresses and store names. We crawled 1.25 million distinct POI pairs scattered across the Web and implemented a POI search service via Apache Lucent’s search platform, called Solr. The experimental results demonstrate that the proposed geographical information retrieval model outperforms Wikimapia and a commercial app called ‘What’s the Number?’ Numéro de notice : A2016-309 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2015.1133820 En ligne : http://dx.doi.org/10.1080/13658816.2015.1133820 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80909
in International journal of geographical information science IJGIS > vol 30 n° 7- 8 (July - August 2016) . - pp 1405 - 1425[article]Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 079-2016042 RAB Revue Centre de documentation En réserve L003 Disponible 079-2016041 RAB Revue Centre de documentation En réserve L003 Disponible Geographically weighted evidence combination approaches for combining discordant and inconsistent volunteered geographical information / Alexis Comber in Geoinformatica, vol 20 n° 3 (July - September 2016)
[article]
Titre : Geographically weighted evidence combination approaches for combining discordant and inconsistent volunteered geographical information Type de document : Article/Communication Auteurs : Alexis Comber, Auteur ; Cidália Costa Fonte, Auteur ; Giles M. Foody, Auteur ; Ana-Maria Olteanu-Raimond , Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 503 – 527 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] analyse combinatoire (maths)
[Termes IGN] classification bayesienne
[Termes IGN] classification de Dempster-Shafer
[Termes IGN] classification floue
[Termes IGN] données localisées des bénévoles
[Termes IGN] données multisources
[Termes IGN] incertitude des données
[Termes IGN] occupation du sol
[Termes IGN] pondération
[Termes IGN] qualité des données
[Termes IGN] régression géographiquement pondérée
[Termes IGN] WikimapiaRésumé : (auteur) There is much interest in being able to combine crowdsourced data. One of the critical issues in information sciences is how to combine data or information that are discordant or inconsistent in some way. Many previous approaches have taken a majority rules approach under the assumption that most people are correct most of the time. This paper analyses crowdsourced land cover data generated by the Geo-Wiki initiative in order to infer the land cover present at locations on a 50 km grid. It compares four evidence combination approaches (Dempster-Shafer, Bayes, Fuzzy Sets and Possibility) applied under a geographically weighted kernel with the geographically weighted average approach applied in many current Geo-Wiki analyses. A geographically weighted approach uses a moving kernel under which local analyses are undertaken. The contribution (or salience) of each data point to the analysis is weighted by its distance to the kernel centre, reflecting Tobler’s 1st law of geography. A series of analyses were undertaken using different kernel sizes (or bandwidths). Each of the geographically weighted evidence combination methods generated spatially distributed measures of belief in hypotheses associated with the presence of individual land cover classes at each location on the grid. These were compared with GlobCover, a global land cover product. The results from the geographically weighted average approach in general had higher correspondence with the reference data and this increased with bandwidth. However, for some classes other evidence combination approaches had higher correspondences possibly because of greater ambiguity over class conceptualisations and / or lower densities of crowdsourced data. The outputs also allowed the beliefs in each class to be mapped. The differences in the soft and the crisp maps are clearly associated with the logics of each evidence combination approach and of course the different questions that they ask of the data. The results show that discordant data can be combined (rather than being removed from analysis) and that data integrated in this way can be parameterised by different measures of belief uncertainty. The discussion highlights a number of critical areas for future research. Numéro de notice : A2016-379 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s10707-016-0248-z Date de publication en ligne : 27/02/2016 En ligne : http://dx.doi.org/ 10.1007/s10707-016-0248-z Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81146
in Geoinformatica > vol 20 n° 3 (July - September 2016) . - pp 503 – 527[article]OpenBIM framework for a collaborative historic preservation system / Shawn E. O'Keeffe in International journal of 3-D information modeling, vol 5 n° 4 (October - December 2016)
[article]
Titre : OpenBIM framework for a collaborative historic preservation system Type de document : Article/Communication Auteurs : Shawn E. O'Keeffe, Auteur Année de publication : 2016 Article en page(s) : pp 1 - 11 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] application web
[Termes IGN] CityGML
[Termes IGN] code source libre
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] format d'échange
[Termes IGN] format Industry foudation classes IFC
[Termes IGN] logiciel libre
[Termes IGN] modélisation 3D du bâti BIM
[Termes IGN] monde virtuel
[Termes IGN] monument historique
[Termes IGN] préservation
[Termes IGN] surveillance d'ouvrage
[Termes IGN] système d'information géographique
[Termes IGN] télémétrie laser terrestreRésumé : (auteur) The authors have developed a novel system framework for a historic preservation system utilising open standards and open source tools. The framework enables the integration of open standard 3D models and GIS in a virtual environment (VE). It also allows the storage and harvesting of data via an open source web-based central repository. The framework is designed for bi-directional interoperability when utilised for monument tracking, preservation, conservation, re-excavation, etc. To date, no such system framework exists for the development and management of historic monuments using open standards e57 for terrestrial laser scanning (TLS) data, the industry foundation classes (IFC) for 3D semantic rich models, and CityGML for integrating IFC and GIS in a VE. The web-based VE is accessed from the BimServer and envisaged for monitoring monument erosion, movement, and damage to monuments by human activity or nature, collaboration between different industry actors to share knowledge, experience, and expertise globally, etc. Numéro de notice : A2016--162 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/IMAGERIE Nature : Article DOI : 10.4018/IJ3DIM.2016100101 En ligne : https://doi.org/10.4018/IJ3DIM.2016100101 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85915
in International journal of 3-D information modeling > vol 5 n° 4 (October - December 2016) . - pp 1 - 11[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 138-2016041 RAB Revue Centre de documentation En réserve L003 Disponible Task selection in spatial crowdsourcing from worker’s perspective / Dingxiong Deng in Geoinformatica, vol 20 n° 3 (July - September 2016)
[article]
Titre : Task selection in spatial crowdsourcing from worker’s perspective Type de document : Article/Communication Auteurs : Dingxiong Deng, Auteur ; Cyrus Shahabi, Auteur ; Ugur Demiryurek, Auteur ; Linhong Zhu, Auteur Année de publication : 2016 Article en page(s) : pp 529 – 568 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] appareil portable
[Termes IGN] approximation
[Termes IGN] données localisées des bénévoles
[Termes IGN] données spatiotemporelles
[Termes IGN] géopositionnement
[Termes IGN] ordonnancement de tâches
[Termes IGN] programmation dynamique
[Termes IGN] prospective
[Termes IGN] téléphonie mobile
[Termes IGN] travail coopératifRésumé : (auteur) With the progress of mobile devices and wireless broadband, a new eMarket platform, termed spatial crowdsourcing is emerging, which enables workers (aka crowd) to perform a set of spatial tasks (i.e., tasks related to a geographical location and time) posted by a requester. In this paper, we study a version of the spatial crowdsourcing problem in which the workers autonomously select their tasks, called the worker selected tasks (WST) mode. Towards this end, given a worker, and a set of tasks each of which is associated with a location and an expiration time, we aim to find a schedule for the worker that maximizes the number of performed tasks. We first prove that this problem is NP-hard. Subsequently, for small number of tasks, we propose two exact algorithms based on dynamic programming and branch-and-bound strategies. Since the exact algorithms cannot scale for large number of tasks and/or limited amount of resources on mobile platforms, we propose different approximation algorithms. Finally, to strike a compromise between efficiency and accuracy, we present a progressive algorithms. We conducted a thorough experimental evaluation with both real-world and synthetic data on desktop and mobile platforms to compare the performance and accuracy of our proposed approaches. Numéro de notice : A2016-380 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-016-0251-4 En ligne : http://dx.doi.org/10.1007/s10707-016-0251-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81147
in Geoinformatica > vol 20 n° 3 (July - September 2016) . - pp 529 – 568[article]The crowd gathers momentum / Tim Thornton in GEO: Geoconnexion international, vol 15 n° 7 (July - August 2016)
[article]
Titre : The crowd gathers momentum Type de document : Article/Communication Auteurs : Tim Thornton, Auteur Année de publication : 2016 Article en page(s) : pp 30 - 34 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] bathymétrie
[Termes IGN] données localisées des bénévoles
[Termes IGN] information géographiqueRésumé : (éditeur) With surveys of the seas and oceans worse than those of the Moon and Mars, a way needs to be found to fill in the gaps in our knowledge. Tim Thornton looks how crowd-sourced bathymetry is gaining ground as a tool to do just that. Numéro de notice : A2016-499 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81522
in GEO: Geoconnexion international > vol 15 n° 7 (July - August 2016) . - pp 30 - 34[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)PermalinkWeb-based geospatial multiple criteria decision analysis using open software and standards / Michelle C. Hamilton in International journal of geographical information science IJGIS, vol 30 n° 7- 8 (July - August 2016)PermalinkEnriching and improving the quality of linked data with GIS / Adam Iwaniak in Open geosciences, vol 8 n° 1 (January - July 2016)PermalinkA geolinguistic approach for comprehending local influence in OpenStreetMap / Sterling Quinn in Cartographica, vol 51 n° 2 (Summer 2016)PermalinkiTowns, framework web pour la donnée géographique 3D / Vincent Picavet in XYZ, n° 147 (juin - août 2016)PermalinkModel application for rapid detection of the exact location when calling an ambulance using OGC Open GeoSMS Standards / Enes Sukic in Open geosciences, vol 8 n° 1 (January - July 2016)PermalinkNew 3D Map Solution Covering Norway / Kenneth Øyen-Eriksen in GIM international, vol 30 n° 6 (June 2016)PermalinkOpen help / Paul Stewart in GEO: Geoconnexion international, vol 15 n° 6 (June 2016)PermalinkPosition validation in crowdsourced accessibility mapping / Rebecca M. Rice in Cartographica, vol 51 n° 2 (Summer 2016)PermalinkCrowdsourcing, citizen science or volunteered geographic information? The current state of crowdsourced geographic information / Linda M. See in ISPRS International journal of geo-information, vol 5 n° 5 (May 2016)PermalinkLe géoportail de la confédération: 3D Viewer et des 3D services / Cédric Métraux in Géomatique suisse, vol 114 n° 5 (mai 2016)PermalinkL'IAU fait carte neuve / Anonyme in Géomatique expert, n° 110 (mai - juin 2016)PermalinkOnline interactive thematic mapping: Applications and techniques for socio-economic research / Duncan A. Smith in Computers, Environment and Urban Systems, vol 57 (May 2016)PermalinkVoyage au pays des apps / Françoise de Blomac in DécryptaGéo le mag, n° 177 (mai 2016)PermalinkA webgis framework for disseminating processed remotely sensed on land cover transformations / Grazia Caradonna in Reports on geodesy and geoinformatics, vol 100 (May 2016)PermalinkIntegrating geo web services for a user driven exploratory analysis / Simon Moncrieff in ISPRS Journal of photogrammetry and remote sensing, vol 114 (April 2016)PermalinkiNUIT: Internet of Things for Urban Innovation / Francesco Carrino in Future internet, vol 8 n° 2 (June 2016)PermalinkUn protocole basé sur des mobiles sécurisés pour une collecte participative de données spatiales en mobilité réellement anonyme / Dai Hai Ton That in Revue internationale de géomatique, vol 26 n° 2 (avril - juin 2016)PermalinkService-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)Permalinkvol 26 n° 2 - avril - juin 2016 - Systèmes d'information pour le transport et la mobilité (Bulletin de Revue internationale de géomatique) / Cyril RayPermalinkUnlock the value of network data / Michael Baker in GEO: Geoconnexion international, vol 15 n° 4 (April 2016)PermalinkL'ergonomie devance l'évolution des usages cartographiques / Hubert d' Erceville in SIGmag, n° 8 (mars 2016)PermalinkEstimating spatial efficiency using cyber search, GIS, and spatial optimization: a case study of fire service deployment in Los Angeles County / R.L. Church in International journal of geographical information science IJGIS, vol 30 n° 3-4 (March - April 2016)PermalinkFaire des SIG avec et pour les citoyens / Jens Ingensand in Géomatique suisse, vol 114 n° 3 (mars 2016)PermalinkA land use/land cover change geospatial cyberinfrastructure to integrate big data and temporal topology / Jin Xing in International journal of geographical information science IJGIS, vol 30 n° 3-4 (March - April 2016)PermalinkSpatial data fusion in spatial data infrastructures using linked data / Stefan Wiemann in International journal of geographical information science IJGIS, vol 30 n° 3-4 (March - April 2016)PermalinkThe role of contextual info-marks in navigating a virtual rural environment / Adam Rousell in Transactions in GIS, vol 20 n° 1 (February 2016)PermalinkAutomatisation des processus de création d’atlas dynamique et interactif développé pour internet / Victoire Marlet (2016)PermalinkConception et implémentation d'un modèle de style adapté à une application web 3D / Anouk Vinesse (2016)PermalinkContribution au développement d'un outil destiné à la diffusion et l'analyse de données spatiales sur les grandes rivières d'Europe / Bruno Giusti (2016)PermalinkDéveloppement d’applications Android en réalité augmentée pour atténuer les risques liés aux séismes / Hugo Baltz (2016)PermalinkDéveloppement d’un outil de webmapping pour l’optimisation de l’offre de soins en dialyse / Clémentine Chasles (2016)PermalinkPermalinkJoining spatial distribution visualisation tools with social media data using free and open source software : extended abstract / Mayra Zurbaran (2016)PermalinkPermalinkPermalinkPermalinkModelling forest canopy trends with on-demand spatial simulation / Gordon M. Green in International journal of geographical information science IJGIS, vol 30 n° 1-2 (January - February 2016)PermalinkPermalinkQue représentent les références spatiales des données du Web ? un vocabulaire pour la représentation de la sémantique des XY / Abdelfettah Feliachi (2016)PermalinkPermalinkPermalinkVocabulaires et métadonnées pour la publication de données géographiques vectorielles sur le Web de données / Nathalie Abadie (2016)PermalinkPermalinkAn exploration of future patterns of the contributions to OpenStreetMap and development of a contribution index / Jamal Jokar Arsanjani in Transactions in GIS, vol 19 n° 6 (December 2015)Permalink