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SIGMOD
1996
ACM
109views Database» more  SIGMOD 1996»
15 years 10 months ago
Improved Histograms for Selectivity Estimation of Range Predicates
Many commercial database systems maintain histograms to summarize the contents of relations and permit efficient estimation of query result sizes and access plan costs. Although s...
Viswanath Poosala, Yannis E. Ioannidis, Peter J. H...
SIGMOD
1994
ACM
175views Database» more  SIGMOD 1994»
15 years 10 months ago
Sleepers and Workaholics: Caching Strategies in Mobile Environments
In the mobile wireless computing environment of the future, a large number of users, equipped with low-powered palmtop machines, will query databases over wireless communication ch...
Daniel Barbará, Tomasz Imielinski
VLDB
1993
ACM
112views Database» more  VLDB 1993»
15 years 10 months ago
Specifying and Enforcing Intertask Dependencies
Extensions of the traditional atomic transaction model are needed to support the development of multi-system applications or work ows that access heterogeneous databases and legac...
Paul C. Attie, Munindar P. Singh, Amit P. Sheth, M...
VLDB
1994
ACM
152views Database» more  VLDB 1994»
15 years 10 months ago
The GMAP: A Versatile Tool for Physical Data Independence
Physical data independence is touted as a central feature of modern database systems. Both relational and object-oriented systems, however, force users to frame their queries in t...
Odysseas G. Tsatalos, Marvin H. Solomon, Yannis E....
DEXA
2006
Springer
121views Database» more  DEXA 2006»
15 years 10 months ago
DCF: An Efficient Data Stream Clustering Framework for Streaming Applications
Streaming applications, such as environment monitoring and vehicle location tracking require handling high volumes of continuously arriving data and sudden fluctuations in these vo...
Kyungmin Cho, SungJae Jo, Hyukjae Jang, Su Myeon K...