2228 search results - page 220 / 446 » A System for Semantic Query Optimization |
131
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ECSQARU
2001
Springer
15 years 7 months ago
2001
Springer
Abstract. In this paper, we first investigate set semantics of propositional logic in terms of rough sets and discuss how truth values of propositions (sentences) can be interpret...
100
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FOIS
2008
15 years 4 months ago
2008
Many geographic terms, such as "river" and "lake", are vague, with no clear boundaries of application. In particular, the spatial extent of such features is oft...
119
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DIWEB
2001
15 years 4 months ago
2001
XPathLog is a logic-based language for manipulating and integrating XML data. It extends the XPath query language with Prolog-style variables. Due to the close relationship with X...
99
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DLOG
1997
15 years 4 months ago
1997
This paper proposes a novel interactive tool designed to support the graphical inspection of large semantic models. The idea is to view the iterative inspection process as a serie...
234
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ICDE
2005
IEEE
16 years 4 months ago
2005
IEEE
We address the problem of executing continuous multiway join queries in unpredictable and volatile environments. Our query class captures windowed join queries in data stream syst...