5954 search results - page 114 / 1191 » Querying Bi-level Information |
158
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ICTAI
2003
IEEE
15 years 11 months ago
2003
IEEE
We investigate two seemingly incompatible approaches for improving document retrieval performance in the context of question answering: query expansion and query reduction. Querie...
146
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SIGCSE
2008
ACM
15 years 5 months ago
2008
ACM
The underlying processes that enable database query execution are fundamental to understanding database management systems. However, these processes are complex and can be difficu...
142
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DAWAK
2009
Springer
16 years 3 months ago
2009
Springer
Interactive analysis of datacube, in which a user navigates a cube by launching a sequence of queries is often tedious since the user may have no idea of what the forthcoming query...
160
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DOLAP
2009
ACM
16 years 13 days ago
2009
ACM
In this paper, we investigate the problem of answering top-k queries via materialized views. We provide theoretical guarantees for the adequacy of a view to answer a top-k query, ...
151
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ECIR
2010
Springer
15 years 7 months ago
2010
Springer
Abstract. This paper explores how to predict query difficulty for contextual image retrieval. We reformulate the problem as the task of predicting how difficult to represent a quer...