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» Cost based plan selection for xpath
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SIGMOD
2009
ACM
201views Database» more  SIGMOD 2009»
14 years 4 months ago
Cost based plan selection for xpath
We present a complete XPath cost-based optimization and execution framework and demonstrate its effectiveness and efficiency for a variety of queries and datasets. The framework i...
Haris Georgiadis, Minas Charalambides, Vasilis Vas...
ADC
2007
Springer
193views Database» more  ADC 2007»
13 years 10 months ago
Optimizing XPath Queries on Streaming XML Data
XML stream processing has recently become popular for many applications such as selective dissemination of information. Several approaches have been proposed and most of them are ...
Keerati Jittrawong, Raymond K. Wong
ICDE
2009
IEEE
156views Database» more  ICDE 2009»
14 years 6 months ago
Distributed Structural Relaxation of XPath Queries
Due to the structural heterogeneity of XML, queries are often interpreted approximately. This is achieved by relaxing the query and ranking the results based on their relevance to ...
Georgia Koloniari, Evaggelia Pitoura
PUK
2000
13 years 5 months ago
Knowledge-Based Control of Decision Theoretic Planning - Adaptive Planning Model Selection
This paper proposes a new planning architecture for agents operating in uncertain and dynamic environments. Decisiontheoretic planning has been recognized as a useful tool for rea...
Jun Miura, Yoshiaki Shirai
SIGMOD
2000
ACM
141views Database» more  SIGMOD 2000»
13 years 9 months ago
Counting, Enumerating, and Sampling of Execution Plans in a Cost-Based Query Optimizer
Testing an SQL database system by running large sets of deterministic or stochastic SQL statements is common practice in commercial database development. However, code defects oft...
Florian Waas, César A. Galindo-Legaria