396 search results - page 30 / 80 » Semantic Optimization of Preference Queries |
BNCOD
2007
13 years 9 months ago
2007
Order is essential for XML query processing. Efficient XML processing with order consideration over relational storage is non-trivial, especially for complex nested XQuery expressi...
SOFSEM
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. Research on processing XML documents gained much activity in recent times. XML query languages are mostly based on XPath expressions, which are used to select parts of XM...
ICMCS
2005
IEEE
14 years 1 months ago
2005
IEEE
This paper presents a framework for building rule-based image retrieval (RBIR) systems. Soft computing based multimedia data mining techniques are employed to extract and optimize...
ERSHOV
2006
Springer
13 years 11 months ago
2006
Springer
In this work, we present a semantic query optimization technique to improve the efficiency of the evaluation of a subset of SQL:1999 recursive queries. Using datalog notation, we c...
KR
2004
Springer
14 years 1 months ago
2004
Springer
Practical description logic systems play an ever-growing role for knowledge representation and reasoning research even in distributed environments. In particular, the often-discus...