154 search results - page 4 / 31 » Exploiting Similarity of Subqueries for Complex Query Optimi... |
WEBDB
2005
Springer
14 years 1 months ago
2005
Springer
Querying document-centric XML collections with structure conditions improves retrieval precisions. The structures of such XML collections, however, are often too complex for users...
ICDCS
2008
IEEE
14 years 2 months ago
2008
IEEE
This paper considers a multi-query optimization issue for distributed similarity query processing, which attempts to exploit the dependencies in the derivation of a query evaluati...
PPDP
2010
Springer
13 years 5 months ago
2010
Springer
Given a set of Datalog rules, facts, and a query, answers to the query can be inferred bottom-up starting with the facts or top-down starting with the query. For efficiently answe...
BTW
2003
Springer
14 years 1 months ago
2003
Springer
Abstract: Optimization of nested queries, in particular finding equivalent “flattened” queries for queries that employ the SQL sub-query construct, has been researched extensiv...
EDBT
2008
ACM
14 years 8 months ago
2008
ACM
For complex data mining queries, query optimization issues arise, similar to those for the traditional database queries. However, few works have applied the cost-based query optim...