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Erschienen in:
2010 | OriginalPaper | Buchkapitel
The Wikipedia Image Retrieval Task
verfasst von : Theodora Tsikrika, Jana Kludas
Erschienen in: ImageCLEF
Verlag: Springer Berlin Heidelberg
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The Wikipedia image retrieval task at ImageCLEF provides a test–bed for the system–oriented evaluation of visual information retrieval from a collection of Wikipedia images. The aim is to investigate the effectiveness of retrieval approaches that exploit textual and visual evidence in the context of a large and heterogeneous collection of images that are searched for by users with diverse information needs. This chapter presents an overview of the available test collections, summarises the retrieval approaches employed by the groups that participated in the task during the 2008 and 2009 ImageCLEF campaigns, provides an analysis of the main evaluation results, identifies best practices for effective retrieval, and discusses open issues.