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Aly, R.B.N. and Hiemstra, D. and Ordelman, R.J.F.
(2007)
Building Detectors to Support Searches on Combined Semantic Concepts.
In: Proceedings of the Multimedia Information Retrieval Workshop, 27 Aug 2007, Amsterdam, The Netherlands.
.
Yahoo! Research.
ISBN not assigned
Full text available as: Official URL: http://yr-bcn.es/events/mir2007-workshop/SIGIR2007-MIR.pdf  Abstract Bridging the semantic gap is one of the big challenges in multimedia
information retrieval. It exists between the extraction of low-level
features of a video and its conceptual contents. In order to understand the
conceptual content of a video a common approach is building concept
detectors. A problem of this approach is that the number of detectors is
impossible to determine. This paper presents a set of 8 methods on how to
combine two existing concepts into a new one, which occurs when both
concepts appear at the same time. The scores for each shot of a video for
the combined concept are computed from the output of the underlying
detectors. The findings are evaluated on basis of the output of the 101
detectors including a comparison to the theoretical possibility to train a
classifier on each combined concept. The precision gains are significant,
specially for methods which also consider the chronological surrounding of a
shot promising. | Item Type: | Conference or Workshop Paper (Full Paper, Talk) |
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| Research Group: | EWI-DB: Databases, EWI-HMI: Human Media Interaction |
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| Research Program: | CTIT-NICE: Natural Interaction in Computer-mediated Environments |
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| Uncontrolled Keywords: | semantic concept, concept combination |
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| ID Code: | 10923 |
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| Status: | Published |
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| Deposited On: | 18 October 2007 |
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| Refereed: | Yes |
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| International: | Yes |
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| More Information: | statisticsmetis |
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