Print Email Facebook Twitter VIREO-TNO @ TRECVID 2015: Multimedia Event Detection Title VIREO-TNO @ TRECVID 2015: Multimedia Event Detection Author Zhang, H. Yi-Jie Lu, Y. Boer, M.H.T de ter Haar, F.B. Zhaofan, Q. Schutte, K. Kraaij, W. Ngo, C. Publication year 2015 Abstract This paper presents an overview and comparative analysis of our systems designed for the TRECVID 2015  multimedia event detection (MED) task. We submitted 17 runs, of which 5 each for the zeroexample, 10-example and 100-example subtasks for the Pre-Speciﬁed (PS) event detection and 2 runs for the 10-example subtask for the Ad-Hoc (AH) event detection. We did not participate in the Interactive Run. This year we focus on three diﬀerent parts of the MED task: 1) extending the size of our concept bank and combining it with improved dense trajectories; 2) exploring strategies for semantic query generation (SQG); and 3) combining our visual classiﬁers with audio and/or textual classiﬁers. Among our 17 submitted runs, the following runs achieved top performances: - VIREO MED15 MED15EvalFull PS 0Ex MED p-manualfused 1: zero-example system with manual SQG, fused with textual (OCR) and speech (ASR) information. - VIREO MED15 MED15EvalFull PS 10Ex MED p-ConceptBankIDTEK0OCR 1: 10-example system using our Concept-Bank feature fused with the improved dense trajectories and the 0Ex manual visual system and OCR. - VIREO MED15 MED15EvalFull PS 100Ex MED c-ConceptBankIDTJointProb 1: 100-example system using Concept-Bank feature fused with the improved dense trajectories, using the joint probability to create the score. Subject 2016 ICT 2015 Observation, Weapon & Protection SystemsDSC - Data Science II - Intelligent Imaging To reference this document use: http://resolver.tudelft.nl/uuid:62da7328-23b7-44ae-87a8-4fda006de2b5 TNO identifier 868829 Source Paper presented at TRECVID Workshop 2015, United States. Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.