331 search results - page 20 / 67 » A framework for selective query expansion |
SIGMOD
2001
ACM
14 years 8 months ago
2001
ACM
Materialized views have been found to be very effective at speeding up queries, and are increasingly being supported by commercial databases and data warehouse systems. However, w...
ECIR
2010
Springer
13 years 10 months ago
2010
Springer
Abstract. Learning To Rank (LTR) techniques aim to learn an effective document ranking function by combining several document features. While the function learned may be uniformly ...
SIGIR
2003
ACM
14 years 1 months ago
2003
ACM
Thesaurus has been widely used in many applications, including information retrieval, natural language processing, and question answering. In this paper, we propose a novel approa...
ADC
2008
Springer
14 years 3 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...
SIGIR
2012
ACM
11 years 11 months ago
2012
ACM
We propose a mathematical framework for query selection as a mechanism for reducing the cost of constructing information retrieval test collections. In particular, our mathematica...