654 search results - page 51 / 131 » Complexity of Answering Queries Using Materialized Views |
243
click to vote
ICDE
2006
IEEE
16 years 4 months ago
2006
IEEE
In this paper, we present the ArchIS system that achieves full-functionality transaction-time databases without requiring temporal extensions in XML or database standards. ArchIS&...
137
click to vote
PODS
2000
ACM
15 years 7 months ago
2000
ACM
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
133
click to vote
JELIA
1998
Springer
15 years 7 months ago
1998
Springer
Abstract. One of the maincharacteristics of logical reasoning in knowledge based systems is its high computational complexity. Anytime deduction and anytime compilation are two att...
216
Voted
ICDE
2006
IEEE
16 years 4 months ago
2006
IEEE
We present MiniCount, the first efficient sound and complete algorithm for finding maximally contained rewritings of conjunctive queries with count, using conjunctive views with c...
107
Voted
ICPR
2002
IEEE
16 years 4 months ago
2002
IEEE
We present a distributed, surveillance system that works in large and complex indoor environments. To track and recognize behaviors of people, we propose the use of the Hidden Mar...