492 search results - page 91 / 99 » trec 2008 |
146
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ACL
2008
15 years 5 months ago
2008
Query expansion is an effective technique to improve the performance of information retrieval systems. Although hand-crafted lexical resources, such as WordNet, could provide more...
124
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LREC
2008
15 years 5 months ago
2008
Each year NIST releases a set of question, document id, answer-triples for the factoid questions used in the TREC Question Answering track. While this resource is widely used and ...
139
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UAI
2003
15 years 5 months ago
2003
Published experiments on spidering the Web suggest that, given training data in the form of a (relatively small) subgraph of the Web containing a subset of a selected class of tar...
143
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DKE
2008
15 years 4 months ago
2008
In this paper, we discuss a novel technique based on semantic constraints to improve the performance and portability of a reformulation-based question answering system. First, we ...
145
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JUCS
2008
15 years 4 months ago
2008
: Some measures such as mean average precision and recall level precision are considered as good system-oriented measures, because they concern both precision and recall that are t...