852 search results - page 41 / 171 » Comparing relevance feedback algorithms for web search |
135
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ICC
2009
IEEE
15 years 1 months ago
2009
IEEE
This paper proposes Reflected Simplex codebooks for limited feedback beamforming in multiple-input multipleoutput (MIMO) wireless systems. The codebooks are a geometric constructio...
134
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SIGIR
2009
ACM
15 years 10 months ago
2009
ACM
Pseudo-relevance feedback (PRF) via query-expansion has been proven to be effective in many information retrieval (IR) tasks. In most existing work, the top-ranked documents from...
141
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AIRS
2006
Springer
15 years 7 months ago
2006
Springer
Search Engines today often return a large volume of results with possibly a few relevant results. The notion of relevance is subjective and depends on the user and the context of ...
119
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ITNG
2006
IEEE
15 years 10 months ago
2006
IEEE
Purpose – This paper reports the findings of a major study examining the overlap among results retrieved by three major web search engines. The goal of the research was to: mea...
161
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TKDE
2008
15 years 3 months ago
2008
One of the fundamental problems in Content-Based Image Retrieval (CBIR) has been the gap between low-level visual features and high-level semantic concepts. To narrow down this gap...