1452 search results - page 252 / 291 » The Effectiveness of Query Expansion for Distributed Informa... |
HT
2009
ACM
14 years 2 months ago
2009
ACM
Sixearch.org is a peer application for social, distributed, adaptive Web search, which integrates the Sixearch.org protocol, a topical crawler, a document indexing system, a retri...
DAGSTUHL
2004
13 years 9 months ago
2004
We present the Priority R-tree, or PR-tree, which is the first R-tree variant that always answers a window query using O((N/B)1-1/d + T/B) I/Os, where N is the number of ddimensio...
GVD
2009
13 years 5 months ago
2009
Curated databases represent a substantial amount of effort by a dedicated group of people to produce a definitive description of some subject area. The value of curated databases ...
AIRS
2009
Springer
14 years 2 months ago
2009
Springer
Relevance-based language models operate by estimating the probabilities of observing words in documents relevant (or pseudo relevant) to a topic. However, these models assume that ...
KDD
2007
ACM
14 years 8 months ago
2007
ACM
Metasearch engine, Comparison-shopping and Deep Web crawling applications need to extract search result records enwrapped in result pages returned from search engines in response ...