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TREC
2004
13 years 8 months ago
2004
Our participation in TREC 2004 aims to extend and improve the use of the DFR (Divergence From Randomness) models with Query Expansion (QE) for the robust track. We experiment with...
TREC
2004
13 years 8 months ago
2004
We describe our first participation in TREC. We only competed in the Question Answering (QA) category and limited our runs to factoids. Our approach was to use our open domain QA ...
TREC
2004
13 years 8 months ago
2004
In the experiment described in this paper, we investigate the effectiveness of a document-independent technique for eliciting additional information from searchers about their inf...
TREC
2004
13 years 8 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...
TREC
2004
13 years 8 months ago
2004
In this paper, we describe ideas and related experiments of Tsinghua University IR group in TREC 2004 QA track. In this track, our system consists three components: Question analy...