907 search results - page 102 / 182 » Efficient Optimization of Iterative Queries |
157
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COMPSAC
1996
IEEE
15 years 10 months ago
1996
IEEE
We present the architecture and design details of a logic database system that extends functionality in a number of ways. The system supports indefinite (non-Horn) facts in extens...
203
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JACM
2008
15 years 6 months ago
2008
XML queries are usually expressed by means of XPath expressions identifying portions of the selected documents. An XPath expression defines a way of navigating an XML tree and ret...
199
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ALENEX
2001
15 years 7 months ago
2001
In nearest neighbor searching we are given a set of n data points in real d-dimensional space, d , and the problem is to preprocess these points into a data structure, so that give...
267
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VLDB
2005
ACM
16 years 6 months ago
2005
ACM
Abstract Declarative queries are proving to be an attractive paradigm for interacting with networks of wireless sensors. The metaphor that "the sensornet is a database" i...
180
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DATE
2002
IEEE
15 years 11 months ago
2002
IEEE
In this paper, we show that under the constant delay model the placement problem is equivalent to minimizing a weighted sum of wire lengths. The weights can be efficiently compute...