42 search results - page 5 / 9 » Query Difficulty, Robustness, and Selective Application of Q... |
PODS
2008
ACM
14 years 8 months ago
2008
ACM
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...
CIKM
2009
Springer
14 years 3 months ago
2009
Springer
Users frequently modify a previous search query in hope of retrieving better results. These modifications are called query reformulations or query refinements. Existing research h...
CIKM
2008
Springer
13 years 10 months ago
2008
Springer
As an effective technique for improving retrieval effectiveness, relevance feedback (RF) has been widely studied in both monolingual and cross-language information retrieval (CLIR...
TCSV
2008
13 years 8 months ago
2008
Conventional subspace learning or recent feature extraction methods consider globality as the key criterion to design discriminative algorithms for image classification. We demonst...
WWW
2009
ACM
14 years 3 months ago
2009
ACM
This paper proposes an effective approach to provide relevant search terms for conceptual Web search. ‘Semantic Term Suggestion’ function has been included so that users can f...