1500 search results - page 131 / 300 » Query Optimization in Database Grid |
AIIA
2007
Springer
14 years 3 months ago
2007
Springer
In this paper we compare four selection strategies in evolutionary optimization of information retrieval (IR) in a question answering setting. The IR index has been augmented by li...
VLDB
2004
ACM
14 years 2 months ago
2004
ACM
This paper presents a novel and complementary technique to optimize an XPath query by minimizing its wildcard steps. Our approach is based on using a general composite axis called...
BTW
2003
Springer
14 years 2 months ago
2003
Springer
: Due to the ever increasing impacts of globalization, people will/have to work on data which is distributed all around the world [LKK+ 97]. Query processing on the corresponding d...
PVLDB
2010
13 years 7 months ago
2010
Optimization of join queries based on average selectivities is suboptimal in highly correlated databases. In such databases, relations are naturally divided into partitions, each ...
WWW
2002
ACM
14 years 9 months ago
2002
ACM
We present an algorithm for translating XSLT programs into SQL. Our context is that of virtual XML publishing, in which a single XML view is defined from a relational database, an...