36 search results - page 5 / 8 » Extensible Rule Based Query Rewrite Optimization in Starburs... |
AMW
2011
12 years 11 months ago
2011
Subqueries are a poweful feature which allows to enforce reuse, composition, rewriting and optimization in a query language. In this paper we perform a comprehensive study of the i...
ADBIS
2004
Springer
14 years 28 days ago
2004
Springer
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
Traditional approaches to rule-based information extraction (IE) have primarily been based on regular expression grammars. However, these grammar-based systems have difficulty scal...
ESWS
2009
Springer
14 years 2 months ago
2009
Springer
We present GiaBATA, a system for storing, aggregating, and querying Semantic Web data, based on declarative logic programming technology, namely on the dlvhex system, which allows ...
CAISE
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. Recently, the database and AI research communities have paid increased attention to ontologies. The main motivating reason is that ontologies promise solutions for comple...