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Communication Dans Un Congrès Année : 2012

LIG at MediaEval 2012 affect task: use of a generic method

Résumé

This paper describes the LIG participation to the MediaEval 2012 Affect Task on violent scenes' detection in Hollywood movies. We submitted four runs at the shot level: hierarchical fusion of descriptors and classifier combinations (LIG-4), the same with conceptual feedback (LIG-3), and the same two with reranking (LIG-2 and LIG-1). Our reference run obtained a performance slightly above the median with the official MAP@100 metric. The temporal re-ranking brings a significant improvement on the overall (classical) MAP but has almost no effect on the MAP@100. The conceptual feedback does not improve the overall MAP but it improves the precision in the head of the returned list (MAP@100 or P@100).
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Dates et versions

hal-00770536 , version 1 (07-01-2013)

Identifiants

  • HAL Id : hal-00770536 , version 1

Citer

Nadia Derbas, Franck Thollard, Bahjat Safadi, Georges Quénot. LIG at MediaEval 2012 affect task: use of a generic method. MediaEval 2012 - Workshop on MediaEval Benchmarking Initiative for Multimedia Evaluation, Oct 2012, Pisa, Italy. 2p. ⟨hal-00770536⟩
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