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129
Voted
ADBIS
2004
Springer
15 years 8 months ago
2004
Springer
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
160
Voted
MMDB
2003
ACM
15 years 7 months ago
2003
ACM
The increased use of video data sets for multimedia-based applications has created a demand for strong video database support, including efficient methods for handling the content...
132
Voted
SIGMOD
2000
ACM
15 years 7 months ago
2000
ACM
Continuous queries are persistent queries that allow users to receive new results when they become available. While continuous query systems can transform a passive web into an ac...
224
Voted
SIGMOD
2005
ACM
16 years 2 months ago
2005
ACM
Although integrity constraints have long been used to maintain data consistency, there are situations in which they may not be enforced or satisfied. In this paper, we present Con...
154
Voted
ICDE
1991
IEEE
15 years 6 months ago
1991
IEEE
— Constraints play an important role in the efficient query evaluation in deductive databases. In this paper, constraint-based query evaluation in deductive databases is investi...