469 search results - page 59 / 94 » Cluster-based query expansion |
165
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ADC
2008
Springer
15 years 10 months ago
2008
Springer
This article describes how to implement efficient memory resident path indexes for semi-structured data. Two techniques are introduced, and they are shown to be significantly fas...
124
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SIGIR
2010
ACM
15 years 8 months ago
2010
ACM
In this paper, we present a novel approach to Pseudo-Relevance Feedback (PRF) called Multilingual PRF (MultiPRF). The key idea is to harness multilinguality. Given a query in a la...
113
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DL
1995
Springer
15 years 8 months ago
1995
Springer
The THOMAS system is designed to make legislative information available to the general public over the Internet, and can be regarded as a prototypeof a government digitallibrary. ...
132
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TREC
2004
15 years 5 months ago
2004
In the robust track, we mainly tested our passage-based retrieval model with different passage sizes and weighting schemes. In our approach, we used two retrieval models, namely t...
151
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IUI
2006
ACM
15 years 10 months ago
2006
ACM
Question answering (QA) systems take users’ natural language questions and retrieve relevant answers from large repositories of free texts. Despite recent progress in QA researc...