194 search results - page 33 / 39 » Learning to rank query reformulations |
89
Voted
CSB
2004
IEEE
15 years 3 months ago
2004
IEEE
Feature selection and weighting are central problems in pattern recognition and instance-based learning. In this work, we discuss the challenges of constructing and weighting feat...
83
Voted
EMNLP
2009
14 years 9 months ago
2009
Most existing information retrieval (IR) systems do not take much advantage of natural language processing (NLP) techniques due to the complexity and limited observed effectivenes...
COLING
2010
14 years 6 months ago
2010
This paper1 presents an empirical approach to mining parallel corpora. Conventional approaches use a readily available collection of comparable, nonparallel corpora to extract par...
104
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SIGIR
2005
ACM
15 years 5 months ago
2005
ACM
State-of-the-art question answering (QA) systems employ termdensity ranking to retrieve answer passages. Such methods often retrieve incorrect passages as relationships among ques...
133
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SIGIR
2011
ACM
14 years 2 months ago
2011
ACM
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback...