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Query Refinement for Content Based Multimedia Retrieval in MARS

By Kriengkrai Porkaew, Kaushik Chakrabarti and Sharad Mehrotra

Abstract

During the past few years, content-based multimedia retrieval has become one of the most active areas of research. Unlike traditional database queries, content-based multimedia retrieval queries are imprecise in nature which makes it difficult for users to express their exact information need in the form of a precise query right away. A typical interface allows the user to express her information need by selecting examples of objects similar to the ones she wishes to retrieve. Such a user interface requires mechanisms to learn the query representation from the examples. In this paper, we present the query refinement approach used in the Multimedia Analysis and Retrieval System (MARS) for learning query representations through relevance feedback. The proposed technique uses query expansion towards modifying the query representation. In query expansion, in each iteration of feedback, the relevant objects are added to the query and non-relevant ones are removed. We compare it with approac..

Year: 1999
OAI identifier: oai:CiteSeerX.psu:10.1.1.32.9819
Provided by: CiteSeerX
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