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1 Web Research Group Barcelona Universitat Pompeu Fabra Barcelona 2 TEXMEX - Multimedia content-based indexing IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, Inria Rennes – Bretagne Atlantique

Abstract : In this paper, we describe our approaches and their results as part of the MediaEval 2012 Placing Task evaluation. We present two di erent tag-based techniques. Both rst preselect one or several geographic area of interest and then perform a deeper analysis inside the selected areas to return the coordinates more likely to be related with the input tags. In addition, we also implement a content-based method that uses aggregated local images descriptors VLAD to nd the video-s visual nearest neighbors and infer its coordinates. In this work we do not use gazetteers or any other external information.





Autor: Michele Trevisiol - Jonathan Delhumeau - Hervé Jégou - Guillaume Gravier -

Fuente: https://hal.archives-ouvertes.fr/



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