938 search results - page 134 / 188 » Space-Efficient Algorithms for Document Retrieval |
107
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SIGMOD
2001
ACM
15 years 12 months ago
2001
ACM
The bit-sliced index (BSI) was originally defined in [ONQ97]. The current paper introduces the concept of BSI arithmetic. For any two BSI's X and Y on a table T, we show how ...
113
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CIKM
2007
Springer
15 years 6 months ago
2007
Springer
We consider the problem of document indexing and representation. Recently, Locality Preserving Indexing (LPI) was proposed for learning a compact document subspace. Different from...
WWW
2009
ACM
16 years 15 days ago
2009
ACM
Comprehensive coverage of the public web is crucial to web search engines. Search engines use crawlers to retrieve pages and then discover new ones by extracting the pages' o...
WWW
2006
ACM
16 years 15 days ago
2006
ACM
Peer-to-peer (P2P) Web search has gained a lot of interest lately, due to the salient characteristics of P2P systems, namely scalability, fault-tolerance and load-balancing. Howev...
SIGIR
2009
ACM
15 years 6 months ago
2009
ACM
Long queries frequently contain many extraneous terms that hinder retrieval of relevant documents. We present techniques to reduce long queries to more effective shorter ones tha...