2853 search results - page 120 / 571 » On the Efficiency of Provenance Queries |
142
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MDM
2007
Springer
16 years 16 days ago
2007
Springer
We envision that in some wireless sensor network applications, such as environmental monitoring, assisted living, and industrial control, handheld devices will be used from time t...
194
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SSDBM
1999
IEEE
15 years 10 months ago
1999
IEEE
In this paper, we present a query system that has been implemented in a practical biological database - GPCRDB. Distinguishing features of this system include: smart query relaxat...
165
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ADBIS
1998
Springer
15 years 10 months ago
1998
Springer
In order to answer efficiently range queries in 2-d R-trees, first we sort queries by means of a space filling curve, then we group them together, and finally pass them for process...
180
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BIRTE
2006
15 years 10 months ago
2006
Existing distributed publish/subscribe systems (DPSS) offer loosely coupled and easy to deploy content-based stream delivery services to a large number of users. However, the lack ...
181
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VLDB
1991
ACM
15 years 10 months ago
1991
ACM
In order to cope efficiently with simple or complex queries as well as different application requirements (e.g., ad-hoc versus repetitive queries), a query optimizer ought to supp...