902 search results - page 31 / 181 » Efficient and Extensible Algorithms for Multi Query Optimiza... |
PODS
2008
ACM
14 years 8 months ago
2008
ACM
We consider a fundamental flow maximization problem that arises during the evaluation of multiple overlapping queries defined on a data stream, in a heterogenous parallel environm...
ICDE
2009
IEEE
14 years 10 months ago
2009
IEEE
Abstract-- Answering approximate queries on string collections is important in applications such as data cleaning, query relaxation, and spell checking, where inconsistencies and e...
SIGMOD
2004
ACM
14 years 8 months ago
2004
ACM
We present BLAS , a Bi-LAbeling based System, for efficiently processing complex XPath queries over XML data. BLAS uses Plabeling to process queries involving consecutive child ax...
PODS
1999
ACM
14 years 24 days ago
1999
ACM
One of the most important types of query processing in spatial databases and geographic information systems is the spatial join, an operation that selects, from two relations, all...
SIGMOD
2010
ACM
14 years 1 months ago
2010
ACM
Parameterized queries are commonly used in database applications. In a parameterized query, the same SQL statement is potentially executed multiple times with different parameter ...