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195
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TALG
2010
15 years 1 months ago
2010
We study a generalization of the k-median problem with respect to an arbitrary dissimilarity measure D. Given a finite set P of size n, our goal is to find a set C of size k such t...
199
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WWW
2006
ACM
16 years 7 months ago
2006
ACM
Social networks play important roles in the Semantic Web: knowledge management, information retrieval, ubiquitous computing, and so on. We propose a social network extraction syst...
149
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WSDM
2010
ACM
16 years 4 months ago
2010
ACM
In web search, recency ranking refers to ranking documents by relevance which takes freshness into account. In this paper, we propose a retrieval system which automatically detect...
196
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SIGIR
2010
ACM
15 years 10 months ago
2010
ACM
In this paper, we present a novel image search system, image search by concept map. This system enables users to indicate not only what semantic concepts are expected to appear bu...
158
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ICPR
2008
IEEE
16 years 1 months ago
2008
IEEE
Most systems for content based image retrieval (CBIR) employ low level image features as a similarity measure. The problem of CBIR systems is that they are a “black box” to th...