In this paper we consider techniques for designing and analysing distributed security transactions. We present a layered approach, with a highlevel security transaction layer running on top of a lower-level secure transport protocol. The secure transport protocol provides protection against dishonest outsiders, while the transaction layer can be designed to provide protection against dishonest ...

Several authors have examined connections between restricted permutations and Chebyshev polynomials of the second kind. In this paper we prove analogues of these results for colored permutations. First we define a distinguished set of length two and length three patterns, which contains only 312 when just one color is used. Then we give a recursive procedure for computing the generating functio...

Masquerade attack refers to an attack that uses a fake identity, to gain unauthorized access to personal computer information through legitimate access identification. Automatic discovery of masqueraders is sometimes undertaken by detecting significant departures from normal user behavior. If a user's normal profile deviates from their original behavior, it could potentially signal an ongoing m...

Inference of ancestry from genetic data is a fundamental problem in computational genetics, with wide applications in human genetics and population genetics. The treatment of ancestry as a continuum instead of a categorical trait has been recently advocated in the literature. Particularly, it was shown that a European individual’s geographic coordinates of origin can be determined up to a few h...

Corresponding Author: Mohd Fadzli Marhusin Faculty of Science and Technology, Universiti Sains Islam Malaysia, Malaysia Email: [email protected] Abstract: In a learning environment, a low student-lecturer ratio is considered a practical solution by many educational institutions. However, the number of students in information technology is increasing every year. This could lead to a signi...

This paper describes design of integrated system for humanoid robotics that consists of three key components, 1) 3D vision, 2) motion planning and 3) bipedal control. Layered system design is adopted to achieve concurrency as well as small latency. Then implementation by using our humanoid type robot H7 and experiments by this architecture are also described. The H7 is expected to be a common t...

We consider an extension of the classical machine-repair model. As opposed to the classical model, we assume that the machines, apart from receiving service from the repairman, also supply service themselves to queues of products. The extended model can be viewed as a layered queueing network (LQN), where the first layer consists of two separate queues of products. Each of these queues is serve...