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Auteur J. Wilson |
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Extracting geographic features from the Internet to automatically build detailed regional gazetteers / D. Goldberg in International journal of geographical information science IJGIS, vol 23 n° 1-2 (january 2009)
[article]
Titre : Extracting geographic features from the Internet to automatically build detailed regional gazetteers Type de document : Article/Communication Auteurs : D. Goldberg, Auteur ; J. Wilson, Auteur ; Craig A. Knoblock, Auteur Année de publication : 2009 Article en page(s) : pp 93 - 128 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] acquisition de données
[Termes IGN] extraction de données
[Termes IGN] internet
[Termes IGN] objet géographique
[Termes IGN] répertoire toponymiqueRésumé : (Auteur) The utility of every imaginable application which incorporates a gazetteer hinges on the simple fact that the resulting system will only be as useful, complete, or accurate as the underlying gazetteer itself. A major issue confronting gazetteers utilized in systems today is that they are not complete and measures of their accuracy are largely unknown. In this paper we describe a methodology which addresses this problem by automatically generating highly complete and detailed regional gazetteers from Internet sources. We utilize information extraction and integration techniques to automatically obtain geographic features and associated footprints and feature types from freely and widely available online data which could be applied to create a gazetteer for nearly any area. We discuss the distinguishing characteristics of the generated gazetteer and extend previous work to define measures which can be used to assess the completeness and accuracy of gazetteers. Using these measures, the generated gazetteer is evaluated against the Alexandria Digital Library Gazetteer and the Los Angeles Comprehensive Bibliographic Database. Our results indicate that a gazetteer created by our methods will be at least as complete as any gazetteer currently available for certain feature classes, while falling short in others. We conclude by offering suggestions to address these shortcomings. Copyright Taylor & Francis Numéro de notice : A2009-129 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802577262 En ligne : https://doi.org/10.1080/13658810802577262 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29759
in International journal of geographical information science IJGIS > vol 23 n° 1-2 (january 2009) . - pp 93 - 128[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-09011 RAB Revue Centre de documentation En réserve L003 Disponible 079-09012 RAB Revue Centre de documentation En réserve L003 Disponible The use of Landsat derived multi-temporal NDVI to assess the impact of the construction of the central Pilbara railway on vegetation conditions, Karijini / J. Wilson in Geocarto international, vol 17 n° 1 (March - May 2002)
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Titre : The use of Landsat derived multi-temporal NDVI to assess the impact of the construction of the central Pilbara railway on vegetation conditions, Karijini Type de document : Article/Communication Auteurs : J. Wilson, Auteur ; P. Hick, Auteur ; R. Hickey, Auteur Année de publication : 2002 Article en page(s) : pp 13 - 20 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse diachronique
[Termes IGN] Australie
[Termes IGN] détection de changement
[Termes IGN] données multitemporelles
[Termes IGN] image Landsat
[Termes IGN] Normalized Difference Vegetation Index
[Termes IGN] parc naturel national
[Termes IGN] photo-interprétation
[Termes IGN] réseau ferroviaire
[Termes IGN] télédétection spatialeRésumé : (Auteur) The Central Pilbara Railway (CPR) was constructed in 1992 by Hamersley Iron Pty Ltd to provide a transport link between Marandoo and the proposed Yandicoogina Mine in the Central Pilbara, Western Australia. The 400 km line connects to the port of Dampier to the huge iron ore resources in the central Pilbara and a section of nearly 100 km of the railway passes through the Karijini National Park. The main area of interest in this study is within this strip and in particular the section 500 metres either side of the railway centreline between Marandoo and the eastern boundary of the park near Juna Downs.
This study uses multi-temporal satellite data to determine the prior status and the impact on vegetation condition from the construction and operation of the CPR. This method was tested using one kilometre sub-divisions along and 100 metre segments away from the line within a 500 metre zone around the CPR.
It was found that change in vegetation condition is significantly greater closer to the railway centreline than farther away. The significant decrease in vegetation condition occurs only in the 0 to 100m segment, but not beyond and the vegetation decrease may be considered an inevitable result of the CPR. It appears that wild-fires have the greatest impact on vegetation condition in this region and the impact of the CPR is minimal by comparison.Numéro de notice : A2002-120 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040208542221 En ligne : https://doi.org/10.1080/10106040208542221 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22035
in Geocarto international > vol 17 n° 1 (March - May 2002) . - pp 13 - 20[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 059-02011 RAB Revue Centre de documentation En réserve L003 Disponible