1168 search results - page 136 / 234 » Optimization strategies for complex queries |
MFCS
2010
Springer
14 years 8 months ago
2010
Springer
We study observation-based strategies for partially-observable Markov decision processes (POMDPs) with parity objectives. An observationbased strategy relies on partial information...
158
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SIGMOD
2008
ACM
15 years 10 months ago
2008
ACM
Pattern matching over event streams is increasingly being employed in many areas including financial services, RFIDbased inventory management, click stream analysis, and electroni...
ICDE
2006
IEEE
15 years 4 months ago
2006
IEEE
XML structural joins, which evaluate the containment (ancestor-descendant) relationships between XML elements, are important operations of XML query processing. Estimating structu...
PVLDB
2008
14 years 9 months ago
2008
OLAP servers based on relational backends typically exploit materialized aggregate tables to improve response times of complex analytical queries. One of the key problems in this ...
105
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LOPSTR
2005
Springer
15 years 3 months ago
2005
Springer
We propose an extension of functional logic languages that allows the definition of operations with patterns containing other defined operation symbols. Such “function patterns...