TALP at MediaEval 2011 Placing Task: georeferencing Flickr videos with geographical knowledge and information retrieval

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Title:	TALP at MediaEval 2011 Placing Task: georeferencing Flickr videos with geographical knowledge and information retrieval
Author:	Ferrés Domènech, Daniel; Rodríguez Hontoria, Horacio
Other authors:	Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics; Universitat Politècnica de Catalunya. GPLN - Grup de Processament del Llenguatge Natural
Abstract:	This paper describes our Georeferencing approaches, experiments, and results at the MediaEval 2011 Placing Task evaluation. The task consists of predicting the most probable geographical coordinates of Flickr videos. Our approaches used only Flickr users textual annotations and tagsets to predict. We used three approaches for this task: 1) a Geographical Knowledge approach, 2) an Information Retrieval based approach with Re-Ranking, and 3) a combination of both (GeoFusion). The GeoFusion approach achieved the best results within the margin of errors from 10km to 10000km.
Subject(s):	-Àrees temàtiques de la UPC::Informàtica::Intel·ligència artificial::Llenguatge natural -Information retrieval -Georeferencing -Toponym disambiguation -Geographical knowledge bases -Recuperació de la informació
Rights:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article - Published version Conference Object
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