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CORR
2008
Springer
118views Education» more  CORR 2008»
15 years 6 months ago
An Activity-Based Model for Separation of Duty
This paper offers several contributions for separation of duty (SoD) administration in role-based access control (RBAC) systems. We first introduce a new formal framework, based o...
Alessandro Colantonio, Roberto Di Pietro, Alberto ...
CORR
2006
Springer
91views Education» more  CORR 2006»
15 years 6 months ago
Complexity of Data Flow Analysis for Non-Separable Frameworks
The complexity of round robin iterative data flow analysis has been traditionally defined as 1+d where d is the depth of a control flow graph. However, this bound is restricted to ...
Bageshri Karkare, Uday P. Khedker
SIGIR
2008
ACM
15 years 6 months ago
Separate and inequal: preserving heterogeneity in topical authority flows
Web pages, like people, are often known by others in a variety of contexts. When those contexts are sufficiently distinct, a page's importance may be better represented by mu...
Lan Nie, Brian D. Davison
BC
2005
71views more  BC 2005»
15 years 6 months ago
The spatiotemporal learning rule and its efficiency in separating spatiotemporal patterns
The hippocampus plays an important role in the course of establishing long-term memory, i.e., to make short-term memory of spatially and temporally associated input information. In...
M. Tsukada, X. Pan
TSP
2008
166views more  TSP 2008»
15 years 6 months ago
A Convex Analysis Framework for Blind Separation of Non-Negative Sources
This paper presents a new framework for blind source separation (BSS) of non-negative source signals. The proposed framework, referred herein to as convex analysis of mixtures of ...
Tsung-Han Chan, Wing-Kin Ma, Chong-Yung Chi, Yue W...