2724 search results - page 140 / 545 » Optimizing Queries on Files |
128
Voted
IADIS
2003
15 years 4 months ago
2003
Digital libraries are more and more available on the web. However, retrieving information in these libraries is not easy because of sources heterogeneity and distribution. Thus, w...
118
Voted
DCC
2008
IEEE
16 years 3 months ago
2008
IEEE
Abstract. A standard way of implementing Huffman's optimal code construction algorithm is by using a sorted sequence of frequencies. Several aspects of the algorithm are inves...
251
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ICDE
2007
IEEE
16 years 4 months ago
2007
IEEE
Optimizing nested queries is an intricate problem. It becomes even harder if in a nested query the linking predicate or the correlation predicate occurs disjunctively. We present ...
133
Voted
VLDB
1999
ACM
15 years 7 months ago
1999
ACM
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
149
Voted
DASFAA
2006
IEEE
15 years 9 months ago
2006
IEEE
Abstract. In emerging data stream applications, data sources are typically distributed. Evaluating multi-join queries over streams from different sources may incur large communica...