Bridging the semantic gap in multimedia information retrieval: top-down and bottom-up approaches
Hare, J.S., Sinclair, P.A.S., Lewis, P.H., Martinez, K., Enser, P.G.B. and Sandom, C.J. (2006) Bridging the semantic gap in multimedia information retrieval: top-down and bottom-up approaches In: Mastering the Gap: From Information Extraction to Semantic Representation / 3rd European Semantic Web Conference, 12 Jun 2006, Budva, Montenegro.
Semantic representation of multimedia information is vital for enabling the kind of multimedia search capabilities that professional searchers require. Manual annotation is often not possible because of the shear scale of the multimedia information that needs indexing. This paper explores the ways in which we are using both top-down, ontologically driven approaches and bottom-up, automatic-annotation approaches to provide retrieval facilities to users. We also discuss many of the current techniques that we are investigating to combine these top-down and bottom-up approaches.
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