339 search results - page 62 / 68 » Query Refinement based on Topical Term Clustering |
ICDE
2012
IEEE
11 years 10 months ago
2012
IEEE
We present a new Bi-level LSH algorithm to perform approximate k-nearest neighbor search in high dimensional spaces. Our formulation is based on a two-level scheme. In the first ...
BMCBI
2007
13 years 7 months ago
2007
Background: We present a probabilistic topic-based model for content similarity called pmra that underlies the related article search feature in PubMed. Whether or not a document ...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Email spam is a much studied topic, but even though current email spam detecting software has been gaining a competitive edge against text based email spam, new advances in spam g...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
Searching for medical information on the Web has become highly popular, but it remains a challenging task because searchers are often uncertain about their exact medical situation...
KDD
2009
ACM
14 years 8 months ago
2009
ACM
To take the first step beyond keyword-based search toward entity-based search, suitable token spans ("spots") on documents must be identified as references to real-world...