42 search results - page 1 / 9 » Query Difficulty, Robustness, and Selective Application of Q... |
ECIR
2004
Springer
13 years 6 months ago
2004
Springer
TREC
2004
13 years 6 months ago
2004
Our experiments in the Robust track this year focused on predicting query difficulty and using this prediction for improving information retrieval. We developed two prediction alg...
ECIR
2008
Springer
13 years 6 months ago
2008
Springer
In document retrieval using pseudo relevance feedback, after initial ranking, a fixed number of top-ranked documents are selected as feedback to build a new expansion query model. ...
CIKM
2009
Springer
13 years 11 months ago
2009
Springer
We introduce a new theoretical derivation, evaluation methods, and extensive empirical analysis for an automatic query expansion framework in which model estimation is cast as a r...
NIPS
2008
13 years 6 months ago
2008
Query expansion is a long-studied approach for improving retrieval effectiveness by enhancing the user's original query with additional related words. Current algorithms for ...