Weiyuan Wang

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The PolicyUpdater 1 system is a generic access control system that provides policy evaluations and dynamic policy updates. These functions are achieved by the use of a logic-based language to represent access control policies. In this paper, we discuss the underlying details of the PolicyUpdater system as well as the issues arising from its application to a(More)
A multi-dipole graphical model, which is constructed by MCG measurements based on equivalent current dipole (ECD) model or equivalent magnetic dipole (EMD) source model, has been developed. This model can be used in place of the existing heart-torso model for dipole source localization or source estimation. Simulation results are presented, which indicate(More)
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