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» On Automating the Calculus of Relations
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SACMAT
2003
ACM
15 years 11 months ago
Induced role hierarchies with attribute-based RBAC
The Role-Based Access Control (RBAC) model is traditionally used to manually assign users to appropriate roles. When the service-providing enterprise has a massive customer base, ...
Mohammad A. Al-Kahtani, Ravi S. Sandhu
CSL
2003
Springer
15 years 11 months ago
Generating All Abductive Explanations for Queries on Propositional Horn Theories
Abstract. Abduction is a fundamental mode of reasoning, which has taken on increasing importance in Artificial Intelligence (AI) and related disciplines. Computing abductive expla...
Thomas Eiter, Kazuhisa Makino
ICCBR
2003
Springer
15 years 11 months ago
Unifying Weighting and Case Reduction Methods Based on Rough Sets to Improve Retrieval
Case-Based Reasoning systems usually retrieve cases using a similarity function based on K-NN or some derivatives. These functions are sensitive to irrelevant or noisy features. We...
Maria Salamó, Elisabet Golobardes
ICLP
2003
Springer
15 years 11 months ago
Computing Minimal Models, Stable Models, and Answer Sets
We propose and study algorithms for computing minimal models, stable models and answer sets of 2- and 3-CNF theories, and normal and disjunctive 2- and 3-programs. We are especiall...
Zbigniew Lonc, Miroslaw Truszczynski
CLOUD
2010
ACM
15 years 11 months ago
Towards automatic optimization of MapReduce programs
Timely and cost-effective processing of large datasets has become a critical ingredient for the success of many academic, government, and industrial organizations. The combination...
Shivnath Babu