789 search results - page 31 / 158 » On Theory Revision with Queries |
ICDE
2002
IEEE
2002
IEEE
Design and Evaluation of Alternative Selection Placement Strategies in Optimizing Continuous Queries
14 years 9 months ago
In this paper, we design and evaluate alternative selection placement strategies for optimizing a very large number of continuous queries in an Internet environment. Two grouping ...
DOLAP
2009
ACM
14 years 3 months ago
2009
ACM
In this paper, we investigate the problem of answering top-k queries via materialized views. We provide theoretical guarantees for the adequacy of a view to answer a top-k query, ...
ATAL
2010
Springer
13 years 9 months ago
2010
Springer
We propose an integrated theoretical framework, grounded in possibility theory, to account for all the aspects involved in representing and changing beliefs, representing and gene...
SIGIR
2002
ACM
13 years 8 months ago
2002
ACM
We develop a method for predicting query performance by computing the relative entropy between a query language model and the corresponding collection language model. The resultin...
ADC
2007
Springer
14 years 2 months ago
2007
Springer
Structured Query Language (SQL) is the dominant language for querying relational databases today, and is an essential topic in introductory database courses in higher education. E...