Query difficulty estimation via relevance prediction for image retrieval


Query difficulty estimation (QDE) attempts to automatically predict the performance of the search results returned for a given query. QDE has long been of interest in text retrieval. However, few research works have been conducted in image retrieval. Existing QDE methods in image retrieval mainly explore the statistical characteristics (coherence… (More)
DOI: 10.1016/j.sigpro.2014.07.018

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