26 search results - page 1 / 6 » Using Delta Relations to Optimize Condition Evaluation in Ac... |
RULES
1995
Springer
13 years 8 months ago
1995
Springer
ICDE
1996
IEEE
14 years 6 months ago
1996
IEEE
This paper presents a difference calculus for determining changes to rule conditions in an active DBMS. The calculus has been used for implementing an algorithm to efficiently mon...
DAGSTUHL
2007
13 years 6 months ago
2007
Abstract Current, data-driven applications have become more dynamic in nature, with the need to respond to events generated from distributed sources or to react to information extr...
WAIM
2004
Springer
13 years 10 months ago
2004
Springer
A top-N selection query against a relation is to find the N tuples that satisfy the query condition the best but not necessarily completely. In this paper, we propose a new method ...
VLDB
1989
ACM
13 years 8 months ago
1989
ACM
paper is concerned with ways of specifying situations and evaluating them efficiently. The techniques described in this paper were developed as part of the HiPAC (High Performance...