3225 search results - page 224 / 645 » Query Optimization by Stored Queries |
190
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CORR
2010
Springer
15 years 4 hour ago
2010
Springer
In this paper we describe a new efficient (in fact optimal) data structure for the top-K color problem. Each element of an array A is assigned a color c with priority p(c). For a ...
187
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SIGMOD
2012
ACM
13 years 7 months ago
2012
ACM
In this demo, we will present Tiresias, the first how-to query engine. How-to queries represent fundamental data analysis questions of the form: “How should the input change in...
136
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COLING
2010
15 years 22 hour ago
2010
This paper presents a novel method for acquiring a set of query patterns to retrieve documents containing important information about an entity. Given an existing Wikipedia catego...
148
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SIGMOD
2004
ACM
16 years 5 months ago
2004
ACM
Exploratory ad-hoc queries could return too many answers ? a phenomenon commonly referred to as "information overload". In this paper, we propose to automatically catego...
152
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PPAM
2005
Springer
15 years 10 months ago
2005
Springer
Abstract. In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorit...