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» On the Management of Object Interrelationships
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CCS
2008
ACM
13 years 9 months ago
Stale-safe security properties for group-based secure information sharing
Attribute staleness arises due to the physical distribution of authorization information, decision and enforcement points. This is a fundamental problem in virtually any secure di...
Ram Krishnan, Jianwei Niu, Ravi S. Sandhu, William...
CCS
2008
ACM
13 years 9 months ago
Online subscriptions with anonymous access
Online privacy is an increasingly important problem, as many services are now offered in a digital form. Privacy (or the lack thereof) is of a special concern in subscriptions to ...
Marina Blanton
KDD
2010
ACM
245views Data Mining» more  KDD 2010»
13 years 9 months ago
Learning incoherent sparse and low-rank patterns from multiple tasks
We consider the problem of learning incoherent sparse and lowrank patterns from multiple tasks. Our approach is based on a linear multi-task learning formulation, in which the spa...
Jianhui Chen, Ji Liu, Jieping Ye
COLCOM
2007
IEEE
13 years 9 months ago
Maintaining constraints expressed as formulas in collaborative systems
—Constraints allow users to declare relationships among objects and let the constraint systems maintain and satisfy these relationships. Formulas have been adopted to express con...
Kai Lin, David Chen, R. Geoff Dromey, Chengzheng S...
EKAW
2008
Springer
13 years 9 months ago
Principles for Knowledge Engineering on the Web
With the advent of the Web and the efforts towards a Semantic Web the nature of knowledge engineering has changed drastically. In this position paper we propose four principles fo...
Guus Schreiber