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LinkedTV at MediaEval 2014 search and hyperlinking task

: Le, H.A.; Bui, Q.M.; Huet, B.; Červenková, B.; Bouchner, J.; Apostolidis, E.; Markatopoulou, F.; Pournaras, A.; Mezaris, V.; Stein, D.; Eickeler, S.; Stadtschnitzer, M.

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Larson, M.:
Multimedia Benchmark Workshop, MediaEval 2014 : Barcelona, Catalunya, Spain, October 16-17, 2014
Barcelona, 2014 (CEUR Workshop Proceedings 1263)
2 S.
Multimedia Benchmark Workshop (MediaEval) <2014, Barcelona>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IAIS ()

The paper presents the LinkedTV approaches for the Search and Hyperlinking (S&H) task at MediaEval 2014. Our submissions aim at evaluating 2 key dimensions: Temporal granularity and visual properties of the video segments. The temporal granularity of target video segments is defined by grouping text sentences, or consecutive automatically detected shots, considering the temporal coherence, the visual similarity and the lexical cohesion among them. Visual properties are combined with text search results using multimodal fusion for re-ranking. Two alternative methods are proposed to identify which visual concepts are relevant to each query: using WordNet similarity or Google Image analysis. For Hyperlinking, relevant visual concepts are identified by analysing the video anchor.