799 search results - page 134 / 160 » Query Brokers for Distributed and Flexible Query Evaluation |
CIKM
2003
Springer
15 years 5 months ago
2003
Springer
Prior research into search system scalability has primarily addressed query processing efficiency [1, 2, 3] or indexing efficiency [3], or has presented some arbitrary system arch...
104
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JUCS
2008
14 years 11 months ago
2008
: Some measures such as mean average precision and recall level precision are considered as good system-oriented measures, because they concern both precision and recall that are t...
CCS
2007
ACM
15 years 6 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
111
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CORR
2006
Springer
14 years 12 months ago
2006
Springer
Many real life problems require the classification of items into naturally ordered classes. These problems are traditionally handled by conventional methods intended for the class...
183
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ICDE
2007
IEEE
16 years 1 months ago
2007
IEEE
Recent work on distributed, in-network aggregation assumes a benign population of participants. Unfortunately, modern distributed systems are plagued by malicious participants. In...