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» Inference for Multiplicative Models
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IPPS
2006
IEEE
15 years 10 months ago
Phylogenetic models of rate heterogeneity: a high performance computing perspective
Inference of phylogenetic trees using the maximum likelihood (ML) method is NP-hard. Furthermore, the computation of the likelihood function for huge trees of more than 1,000 orga...
Alexandros Stamatakis
SACMAT
2006
ACM
15 years 10 months ago
Secure resource description framework: an access control model
In this paper we propose an access control model for the Resource Description Framework (RDF). We argue that existing access control models, like the ones developed for securing e...
Amit Jain, Csilla Farkas
PKDD
2005
Springer
122views Data Mining» more  PKDD 2005»
15 years 9 months ago
A Probabilistic Clustering-Projection Model for Discrete Data
For discrete co-occurrence data like documents and words, calculating optimal projections and clustering are two different but related tasks. The goal of projection is to find a ...
Shipeng Yu, Kai Yu, Volker Tresp, Hans-Peter Krieg...
IEAAIE
1995
Springer
15 years 7 months ago
Modelling Hybrid Rule/Frame-Based Expert Systems Using Coloured Petri Nets
High level Petri Nets have recently been used for many AI applications, particularly for modelling traditional rule-based expert systems. The major effect is to facilitate the ana...
Simon C. K. Shiu, James N. K. Liu, Daniel S. Yeung
CCS
2008
ACM
15 years 6 months ago
A class of probabilistic models for role engineering
Role Engineering is a security-critical task for systems using role-based access control (RBAC). Different role-mining approaches have been proposed that attempt to automatically ...
Mario Frank, David A. Basin, Joachim M. Buhmann