CLIPS-LIS-LSR Video search system (Grenoble, France)
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Transcript of CLIPS-LIS-LSR Video search system (Grenoble, France)
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CLIPS-LIS-LSR Video search system (Grenoble, France)
Georges Quénot, Laurent Besacier, Mbarek Charhad
Stephane Ayache, Daniel Moraru, Philippe Mulhem
CLIPS-IMAG
Denis Pellerin, Mickael Guironnet,
LIS/SIC
Jérôme Gensel,
LSR/SIGMA
Contact : [email protected]
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CLIPS-LIS-LSR search system (Grenoble, France)http://korsakov1.imag.fr/cvsp/trecvid.html
• 5 criteria:– Keywords from ASR– Visual similarity to query image (color & texture)– 15 semantic categories (P. Mulhem)– Visual similarity to positives from feedback– Temporal closeness to positives from feedback
• User-weighted linear combination• Very fast and efficient feedback (optimized user
interface and search server)
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CLIPS-LIS-LSR search system (Grenoble, France)Starting screen
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CLIPS-LIS-LSR search system (Grenoble, France)Topic presentation and first query
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CLIPS-LIS-LSR search system (Grenoble, France)Topic presentation and first query
Query Input
Enlarged View
Topic Presentation
Topic Text
Image Examples
Video Examples
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CLIPS-LIS-LSR search system (Grenoble, France)Query reformulation and relevance feedback
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CLIPS-LIS-LSR search system (Grenoble, France)Query reformulation and relevance feedback
Query Reformu-lation
Enlarged View Relevance Feedback
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CLIPS-LIS-LSR search system (Grenoble, France)Query Input / Reformulation
Select and weight query modes
Enter Keywords
Enter Example Image References
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CLIPS-LIS-LSR search system (Grenoble, France)Query Input / Reformulation
Enter searched semantic features:
Left: unwanted Central: neutral Right: desired
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CLIPS-LIS-LSR search system (Grenoble, France)Relevance Feedback
Search Similars
Mark Positive
Mark Unsure
Mark Negative
Play shot
Search Neighbors
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CLIPS-LIS-LSR search system (Grenoble, France)Evolution of MAP over time
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CLIPS-LIS-LSR search system (Grenoble, France)System / User performance
• There is a significant variability of the system performance according to the user.
• The relative user performance is consistent with the knowledge and the experience the user has of the system.
• It is also most probable that the mother language as well as the cultural background of the users significantly affect the system/user performance.
• None of the users here is an English native speaker.
• None of them either is much familiar with the politics and sports in the US.