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SACMAT
2009
ACM
15 years 9 months ago
A formal framework to elicit roles with business meaning in RBAC systems
The role-based access control (RBAC) model has proven to be cost effective to reduce the complexity and costs of access permission management. To maximize the advantages offered...
Alessandro Colantonio, Roberto Di Pietro, Alberto ...
VLDB
2001
ACM
114views Database» more  VLDB 2001»
15 years 9 months ago
Distinct Sampling for Highly-Accurate Answers to Distinct Values Queries and Event Reports
Estimating the number of distinct values is a wellstudied problem, due to its frequent occurrence in queries and its importance in selecting good query plans. Previous work has sh...
Phillip B. Gibbons
SIGGRAPH
2000
ACM
15 years 9 months ago
Timewarp rigid body simulation
The traditional high-level algorithms for rigid body simulation work well for moderate numbers of bodies but scale poorly to systems of hundreds or more moving, interacting bodies...
Brian Mirtich
VLDB
1999
ACM
142views Database» more  VLDB 1999»
15 years 9 months ago
Active Storage Hierarchy, Database Systems and Applications - Socratic Exegesis
stract This panel addresses a very important area that is often neglected or overlooked by database systems, database applications developers and data warehouse designers, namely s...
Felipe Cariño, William O'Connell, John Burg...
VLDB
1999
ACM
147views Database» more  VLDB 1999»
15 years 9 months ago
Data-Driven, One-To-One Web Site Generation for Data-Intensive Applications
A data-driven approach can be fruitfully used in the speci cation and automatic generation of data-intensive Web applications, i.e., applications which make large amounts of data ...
Stefano Ceri, Piero Fraternali, Stefano Paraboschi