Conference paper Open Access

Fusion of Compound Queries with Multiple Modalities for Known Item Video Search

Ilias Gialampoukidis; Anastasia Moumtzidou; Stefanos Vrochidis; Ioannis Kompatsiaris


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    "description": "<p>Multimedia collections are ubiquitous and very often contain hundreds of hours of video information. The retrieval of a particular scene of a video (Known Item Search) in a large collection is a difficult problem, considering the multimodal character of all video shots and the complexity of the query, either visual or textual. We tackle these challenges by fusing, first, multiple modalities in a nonlinear graph-based way for each subtopic of the query. In addition, we fuse the top retrieved video shots per sub-query to provide the final list of retrieved shots, which is then re-ranked using temporal information. The framework is evaluated in popular Known Item Search tasks in the context of video shot retrieval and provides the largest Mean Reciprocal Rank scores.</p>", 
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        "affiliation": "CERTH-ITI", 
        "name": "Anastasia Moumtzidou"
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        "name": "Stefanos Vrochidis"
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        "orcid": "0000-0001-6447-9020", 
        "affiliation": "CERTH-ITI", 
        "name": "Ioannis Kompatsiaris"
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