2228 search results - page 140 / 446 » A System for Semantic Query Optimization |
DS
1997
14 years 11 months ago
1997
The ODMG proposal has helped to focus the work on object-oriented databases (OODBs) onto a common object model and query language. Nevertheless there are several shortcomings of t...
SIGMOD
2003
ACM
15 years 10 months ago
2003
ACM
We propose a framework for integrating data from multiple relational sources into an XML document that both conforms to a given DTD and satisfies predefined XML constraints. The f...
FLAIRS
2004
14 years 11 months ago
2004
We develop the default logic for pragmatic analysis of natural language queries. Ambiguous sentences are considered so that each set of meanings is assigned an extension of defaul...
SIGMOD
1990
ACM
15 years 2 months ago
1990
ACM
The role of database knowledge 1susually limited to the evaluation of data queries In this paper we argue that when this knowledge 1sof substantial volume and complexity, there 1s...
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SIGMOD
2006
ACM
15 years 10 months ago
2006
ACM
Data streaming systems are becoming essential for monitoring applications such as financial analysis and network intrusion detection. These systems often have to process many simi...