12825 search results - page 2190 / 2565 » Improved PLSOM algorithm |
149
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SIGIR
2008
ACM
15 years 6 months ago
2008
ACM
Bag-of-visual-words (BoW) has been popular for visual classification in recent years. In this paper, we propose a novel BoW expansion method to alleviate the effect of visual word...
152
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SIGIR
2008
ACM
15 years 6 months ago
2008
ACM
We present a novel passage-based approach to re-ranking documents in an initially retrieved list so as to improve precision at top ranks. While most work on passage-based document...
141
Voted
SIGIR
2008
ACM
15 years 6 months ago
2008
ACM
Over the years, the notion of concept relatedness has attracted considerable attention. A variety of approaches, based on ontology structure, information content, association, or ...
124
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SIGIR
2008
ACM
15 years 6 months ago
2008
ACM
Passages can be hidden within a text to circumvent their disallowed transfer. Such release of compartmentalized information is of concern to all corporate and governmental organiz...
181
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SAC
2006
ACM
15 years 6 months ago
2006
ACM
Link farm spam and replicated pages can greatly deteriorate link-based ranking algorithms like HITS. In order to identify and neutralize link farm spam and replicated pages, we lo...