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SACMAT
2010
ACM
15 years 11 months ago
Mining roles with noisy data
There has been increasing interest in automatic techniques for generating roles for role based access control, a process known as role mining. Most role mining approaches assume t...
Ian Molloy, Ninghui Li, Yuan (Alan) Qi, Jorge Lobo...
SIGMOD
1999
ACM
181views Database» more  SIGMOD 1999»
15 years 11 months ago
Approximate Computation of Multidimensional Aggregates of Sparse Data Using Wavelets
Computing multidimensional aggregates in high dimensions is a performance bottleneck for many OLAP applications. Obtaining the exact answer to an aggregation query can be prohibit...
Jeffrey Scott Vitter, Min Wang
APL
1998
ACM
15 years 10 months ago
EGREGION: a branch coverage tool for APL
This article describes our experience with test suites and automated branch coverage tools for APL software maintenance, based on our use of them to verify Y2K compliance of an AP...
Robert Bernecky
ER
1997
Springer
145views Database» more  ER 1997»
15 years 10 months ago
Enterprise Knowledge Management and Conceptual Modelling
Turbulence is in the nature of business environments. Changes brought about because of different requirements such as social, political, technical and economic, exert pressures on ...
Pericles Loucopoulos, Vagelio Kavakli
KDD
2010
ACM
224views Data Mining» more  KDD 2010»
15 years 10 months ago
Ensemble pruning via individual contribution ordering
An ensemble is a set of learned models that make decisions collectively. Although an ensemble is usually more accurate than a single learner, existing ensemble methods often tend ...
Zhenyu Lu, Xindong Wu, Xingquan Zhu, Josh Bongard