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An empirical study of the effects of NLP components on Geographic IR performance / N. Stokes in International journal of geographical information science IJGIS, vol 22 n° 3 (march 2008)
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[article]
Titre : An empirical study of the effects of NLP components on Geographic IR performance Type de document : Article/Communication Auteurs : N. Stokes, Auteur ; Y. Li, Auteur ; A. Moffat, Auteur ; et al., Auteur Année de publication : 2008 Article en page(s) : pp 247 - 264 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] accès aux données localisées
[Termes IGN] géomatique web
[Termes IGN] langage naturel (informatique)
[Termes IGN] recherche d'information géographique
[Termes IGN] résolution d'ambiguïté
[Termes IGN] toponymeRésumé : (Auteur) Natural language processing (NLP) techniques, such as toponym detection and resolution, are an integral part of most geographic information retrieval (GIR) architectures. Without these components, synonym detection, ambiguity resolution and accurate toponym expansion would not be possible. However, there are many important factors affecting the success of an NLP approach to GIR, including toponym detection errors, toponym resolution errors and query overloading. The aim of this paper is to determine how severe these errors are in state-of-the-art systems, and to what extent they affect GIR performance. We show that a careful choice of weighting schemes in the IR engine can minimize the negative impact of these errors on GIR accuracy. We provide empirical evidence from the GeoCLEF 2005 and 2006 datasets to support our observations. Numéro de notice : A2008-138 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810701626210 En ligne : https://doi.org/10.1080/13658810701626210 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29133
in International journal of geographical information science IJGIS > vol 22 n° 3 (march 2008) . - pp 247 - 264[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-08021 RAB Revue Centre de documentation En réserve L003 Disponible 079-08022 RAB Revue Centre de documentation En réserve L003 Disponible
[article]
Titre : ARCGIS explorer review Type de document : Article/Communication Auteurs : S. Kienberger, Auteur ; D. Tiede, Auteur Année de publication : 2008 Article en page(s) : pp 42 - 47 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] ArcGIS Explorer
[Termes IGN] géomatique web
[Termes IGN] globe virtuel
[Termes IGN] intégration de données
[Termes IGN] interface web
[Termes IGN] visualisation 3DRésumé : (Auteur) One year after the release of Google Earth Esri announced an alternative virtual globe. The current version of ArcGIS Explorer will be evaluated here. A distinctive focus is given to different aspects such as data integrity, OGC conformity, GIS analysis capabilities, user interface and the underlying business model will have a distinctive focus. Only ArcGIS Explorer is reviewed, but compares capabilities/shortcomings to alternative virtual globes if necessary. Copyright GEOinformatics Numéro de notice : A2008-065 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29060
in Geoinformatics > vol 11 n° 2 (01/03/2008) . - pp 42 - 47[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 262-08021 SL Revue Centre de documentation Revues en salle Disponible A comparison of geometric approaches to assessing spatial similarity for GIR / P. Frontiera in International journal of geographical information science IJGIS, vol 22 n° 3 (march 2008)
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[article]
Titre : A comparison of geometric approaches to assessing spatial similarity for GIR Type de document : Article/Communication Auteurs : P. Frontiera, Auteur ; R. Larson, Auteur ; J. Radke, Auteur Année de publication : 2008 Article en page(s) : pp 337 - 360 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] approximation
[Termes IGN] indexation spatiale
[Termes IGN] pertinence
[Termes IGN] recherche d'information géographique
[Termes IGN] requête spatiale
[Termes IGN] similitudeRésumé : (Auteur) This research compares the geographic information retrieval (GIR) performance of a set of logistic regression models with those of five non-probabilistic methods that compute a spatial similarity score for a query-document pair. All methods are applied to a test collection of queries and documents indexed spatially by two convex conservative geometric approximations: the minimum bounding box (MBB) and the convex hull. In the comparison, the tested logistic regression models outperform, in terms of standard information retrieval recall and precision measures, all of the non-probabilistic methods. The retrieval performance achieved by the logistic regression models on MBB approximations is similar to that achieved by the use of the non-probabilistic methods on convex hulls. Although these results are valid only for the test collection used in this study, they suggest that a logistic regression approach to GIR provides an alternative to the use of higher-quality geometric representations that are more difficult to obtain, implement, and process. Additionally, this research demonstrates the ability of a probabilistic approach to effectively incorporate information about geographic context in the spatial ranking process. Copyright Taylor & Francis Numéro de notice : A2008-143 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810701626293 En ligne : https://doi.org/10.1080/13658810701626293 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29138
in International journal of geographical information science IJGIS > vol 22 n° 3 (march 2008) . - pp 337 - 360[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-08021 RAB Revue Centre de documentation En réserve L003 Disponible 079-08022 RAB Revue Centre de documentation En réserve L003 Disponible A conceptual density-based approach for the disambiguation of toponyms / D. Buscaldi in International journal of geographical information science IJGIS, vol 22 n° 3 (march 2008)
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[article]
Titre : A conceptual density-based approach for the disambiguation of toponyms Type de document : Article/Communication Auteurs : D. Buscaldi, Auteur ; P. Rosso, Auteur Année de publication : 2008 Article en page(s) : pp 301 - 313 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Infrastructure de données
[Termes IGN] géomatique web
[Termes IGN] indexation spatiale
[Termes IGN] recherche d'information géographique
[Termes IGN] résolution d'ambiguïté
[Termes IGN] toponymeRésumé : (Auteur) Nowadays, a huge quantity of information is stored in digital format. A great portion of this information is constituted by textual and unstructured documents, where geographical references are usually given by means of place names. A common problem with textual information retrieval is represented by polysemous words, that is, words can have more than one sense. This problem is present also in the geographical domain: place names may refer to different locations in the world. In this paper we investigate the use of our word sense disambiguation technique in the geographical domain, with the aim of resolving ambiguous place names. Our technique is based on WordNet conceptual density. Due to the lack of a reference corpus tagged with WordNet senses, we carried out the experiments over a set of 1,210 place names extracted from the SemCor corpus that we named GeoSemCor and made publicly available. We compared our method with the most-frequent baseline and the enhanced-Lesk method, which previously has not been tested in large contexts. The results show that a better precision can be achieved by using a small context (phrase level), whereas a greater coverage can be obtained by using large contexts (document level). The proposed method should be tested with other corpora, due to the fact that our experiments evidenced the excessive bias towards the most-frequent sense of the GeoSemCor. Copyright Taylor & Francis Numéro de notice : A2008-141 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810701626251 En ligne : https://doi.org/10.1080/13658810701626251 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29136
in International journal of geographical information science IJGIS > vol 22 n° 3 (march 2008) . - pp 301 - 313[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-08021 RAB Revue Centre de documentation En réserve L003 Disponible 079-08022 RAB Revue Centre de documentation En réserve L003 Disponible Development and applications of the global map / Taro Ubukawa in Bulletin of the Geographical survey institute, vol 55 (March 2008)
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Titre : Development and applications of the global map Type de document : Article/Communication Auteurs : Taro Ubukawa, Auteur Année de publication : 2008 Article en page(s) : pp 11 - 20 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie
[Termes IGN] activité cartographique
[Termes IGN] carte du monde (ONU)
[Termes IGN] cartographie étrangère
[Termes IGN] infrastructure mondiale des données localiséesRésumé : (Auteur) The Geographical Survey Institute of Japan has been implementing the Global Mapping project not only as the participating organization from Japan, but also as the Secretariat of the International Steering Committee for Global Mapping. As the Secretariat, the Geographical Survey Institute of Japan has made efforts to develop and promote the Global Mapping project through international cooperation. Due to these efforts, the development of Global Map version 1 has dramatically progressed toward the goal of the completion of global coverage. As of February 18, 2008, 162 countries and 16 regions are participating in the Global Mapping project (ca 97 % of the whole land area), and 48 countries and 3 regions have released their Global Map version 1 data (ca 49% of the whole land area). The International Steering Committee for Global Mapping plans to release Global Map Version 1 of all land areas of the globe in 2008. Copyright Geographical Survey Institute Numéro de notice : A2008-511 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans En ligne : https://www.gsi.go.jp/common/000045516.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29580
in Bulletin of the Geographical survey institute > vol 55 (March 2008) . - pp 11 - 20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 250-08011 RAB Revue Centre de documentation En réserve L003 Disponible Fast error analysis of continuous GPS observations / M. Bos in Journal of geodesy, vol 82 n° 3 (March 2008)
PermalinkGeographic intention and modification in Web search / R. Jones in International journal of geographical information science IJGIS, vol 22 n° 3 (march 2008)
Permalinkvol 22 n° 3 - march 2008 - Geographical information retrieval (Bulletin de International journal of geographical information science IJGIS) / C. Jones
PermalinkInnovations in individual feature history management: the significance of feature-based temporal model / J. Choi in Geoinformatica, vol 12 n° 1 (March - May 2008)
PermalinkLocation approximation for local search services using natural language hints / S. Schockaert in International journal of geographical information science IJGIS, vol 22 n° 3 (march 2008)
PermalinkOn metonymy recognition for geographic information retrieval / J. Leveling in International journal of geographical information science IJGIS, vol 22 n° 3 (march 2008)
PermalinkUsing co-occurrence models for placename disambiguation / S. Overell in International journal of geographical information science IJGIS, vol 22 n° 3 (march 2008)
PermalinkSpatial sampling uncertainty in SMEX04 soil moisture fields: a data-based resampling experiment / M. Gebremichael in Remote sensing of environment, vol 112 n° 2 (15/02/2008)
PermalinkNational Spatial Data Infrastructure Act / H. Murakami in GIM international, vol 22 n° 2 (February 2008)
PermalinkSpatially and temporally continuous LAI data sets based on an integrated filtering method: examples from North America / H. Fang in Remote sensing of environment, vol 112 n° 1 (15/01/2008)
PermalinkAcquiring service oriented descriptions of GI processing software from experts [short paper] / Bénédicte Bucher (2008)
PermalinkActes de l'atelier " Systèmes d'Information et de Décision pour l'Environnement" [lors d'INFORSID 2008] / François Pinet (2008)
PermalinkPermalinkAn extensible semantic catalogue for geospatial Web services / Patrick Maué in International Journal of Spatial Data Infrastructures Research, vol 3 (Year 2008)
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PermalinkPermalinkArbeitsgruppe "Automation inder Kartographie, Photogrammetrie und GIS", Tagung 2007 / Bundesamt für Kartographie und Geodäsie (2008)
PermalinkAssessment and socio-economic aspects of Geographic Information Infrastructures / Bastiaan Van Loenen (2008)
PermalinkPermalinkPermalinkLes enjeux juridiques des échanges de données localisées / Centre d'études sur les réseaux, les transports, l'urbanisme et les constructions publiques (2008)
PermalinkEntwicklung eines Qualitätsmodells für die Generierung von digitalen Gelandemodellen aus airborne Laser scanning / Hans Jürg Luthy (2008)
PermalinkPermalinkPermalinkÉvolution du logiciel de gestion de configuration des données sources pour le projet Topobase Défense / Noémie Gremeaux (2008)
PermalinkLes fichiers fonciers standard délivrés par la DGI appelés communément fichiers MAJIC 2, 1. Volume 1, Guide méthodologique pour leur utilisation / Ieti consultants (2008)
PermalinkLes fichiers fonciers standard délivrés par la DGI appelés communément fichiers MAJIC 2, 2. Volume 2, Annexes du guide méthodologique pour leur utilisation / Ieti consultants (2008)
PermalinkFusion de connaissances imparfaites pour l'appariement de données géographiques / Ana-Maria Olteanu-Raimond (2008)
PermalinkGeometric validation of a ground-based mobile laser scanning system / D. Barber in ISPRS Journal of photogrammetry and remote sensing, vol 63 n° 1 (January - February 2008)
PermalinkPermalinkPermalinkINSPIRE : l'heure de la mobilisation générale a sonné / Françoise de Blomac in SIG la lettre, n° 93 (janvier 2008)
PermalinkPermalinkPermalinkPermalinkPermalinkLa qualité des données géographiques / Centre d'études sur les réseaux, les transports, l'urbanisme et les constructions publiques (2008)
PermalinkPermalinkQuality aspects in spatial data mining, ch. 5. A multicriteria fusion approach for geographical data matching / Ana-Maria Olteanu-Raimond (2008)
PermalinkPermalinkPermalinkPermalinkStatus of GIS in Europe opportunities and challenges / Josef Strobl in GIS development, vol 12 n° 1 (01/01/2008)
PermalinkThe European Information Society : Taking Geoinformation Science One Step Further, AGILE 2008 / Lars Bernard (2008)
PermalinkPermalinkWorkshop on production partnership management, Ordnance Survey, Southampton, 7-9 November 2007, England / Ray Patrucco (2008)
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