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SACMAT
2005
ACM
16 years 4 days ago
Composing and combining policies under the policy machine
As a major component of any host, or network operating system, access control mechanisms come in a wide variety of forms, each with their individual attributes, functions, methods...
David F. Ferraiolo, Serban I. Gavrila, Vincent C. ...
HICSS
2003
IEEE
118views Biometrics» more  HICSS 2003»
15 years 12 months ago
The Role of Organizational Culture in the Management of Clinical e-health Systems
The research here presented focuses upon the informal, social, and cultural side of managerial coordination and control as manifested in clinical e-health systems. Specifically, t...
David Bangert, Robert Doktor
RECSYS
2009
ACM
16 years 1 months ago
Improving rating estimation in recommender systems using aggregation- and variance-based hierarchical models
Previous work on using external aggregate rating information showed that this information can be incorporated in several different types of recommender systems and improves their...
Akhmed Umyarov, Alexander Tuzhilin
ICDE
2004
IEEE
100views Database» more  ICDE 2004»
16 years 8 months ago
Simple, Robust and Highly Concurrent B-trees with Node Deletion
Why might B-tree concurrency control still be interesting? For two reasons: (i) currently exploited "real world" approaches are complicated; (ii) simpler proposals are n...
David B. Lomet
CAISE
1999
Springer
15 years 11 months ago
Applying Graph Reduction Techniques for Identifying Structural Conflicts in Process Models
Abstract. The foundation of a process model lies in its control flow specifications. Using a generic process modeling language for workflows, we show how a control flow specificati...
Wasim Sadiq, Maria E. Orlowska