2987 search results - page 267 / 598 » Multiobjective Query Optimization |
132
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VLDB
2002
ACM
15 years 2 months ago
2002
ACM
Structurally recursive XML queries are an important query class that follows the structure of XML data. At present, it is difficult for XQuery to type and optimize structurally re...
186
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ICDE
2005
IEEE
16 years 3 months ago
2005
IEEE
The query optimizer of a database system is confronted with two aspects when handling user-defined functions (UDFs) in query predicates: the vast differences in evaluation costs b...
93
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WWW
2008
ACM
16 years 3 months ago
2008
ACM
In this paper, we formalize the problem of Basic Graph Pattern (BGP) optimization for SPARQL queries and main memory graph implementations of RDF data. We define and analyze the c...
109
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XSYM
2004
Springer
15 years 7 months ago
2004
Springer
Due to their numerous benefits, relational systems play a major role in storing XML documents. XML also benefits relational systems by providing a means to publish legacy relatio...
113
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ICALP
2005
Springer
15 years 8 months ago
2005
Springer
Given two rooted, ordered, and labeled trees P and T the tree inclusion problem is to determine if P can be obtained from T by deleting nodes in T. This problem has recently been r...