2217 search results - page 169 / 444 » Rank-aware Query Optimization |
302
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ICDE
2004
IEEE
16 years 7 months ago
2004
IEEE
Twig queries represent the building blocks of declarative query languages over XML data. A twig query describes a complex traversal of the document graph and generates a set of el...
175
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VLDB
1995
ACM
15 years 10 months ago
1995
ACM
We address the problem of finding parallel plans for SQL queries using the two-phase approach of join ordering and query rewrite (JOQR) followed by parallelization. We focus on t...
156
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TOOLS
1999
IEEE
15 years 10 months ago
1999
IEEE
Path traversals have been recognized as one of the strengths of object-oriented query processing as object retrieval can be carried out through pointer navigation. Apart from path...
168
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KDD
1994
ACM
15 years 10 months ago
1994
ACM
Semantic query optimization can dramatically speed up database query answering by knowledge intensive reformulation. But the problem of how to learn required semantic rules has no...
159
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PODC
2010
ACM
15 years 10 months ago
2010
ACM
This paper deals with pipelined queries over services. The execution plan of such queries defines an order in which the services are called. We present the theoretical underpinni...