332 search results - page 17 / 67 » Space Complexity vs. Query Complexity |
PODS
2003
ACM
14 years 10 months ago
2003
ACM
In this paper we study the following problem. Given a database and a set of queries, we want to find, in advance, a set of views that can compute the answers to the queries, such ...
IDEAS
2003
IEEE
14 years 3 months ago
2003
IEEE
As the popularity of XML keeps growing rapidly, XML compliant structured document management becomes an interesting and compelling research area. Query optimization for structured...
ICDE
2002
IEEE
14 years 11 months ago
2002
IEEE
XML and other semi-structured data may have partially specified or missing schema information, motivating the use of a structural summary which can be automatically computed from ...
OOPSLA
1997
Springer
14 years 2 months ago
1997
Springer
Object relationships in modern software systems are becoming increasingly numerous and complex. Programmers who try to find violations of such relationships need new tools that al...
SIGMOD
2003
ACM
14 years 10 months ago
2003
ACM
The learning-enhanced relevance feedback has been one of the most active research areas in content-based image retrieval in recent years. However, few methods using the relevance ...