We have proposed a diffusion-type flow control mechanism to achieve the extremely time-sensitive flow control required for highspeed networks. In this mechanism, each node in a network manages its local traffic flow only on the basis of the local information directly available to it, by using predetermined rules. In this way, the implementation of decision-making at each node can lead to optima...

Vinay Prasad Multiscale systems offer unique challenges in modeling and control. From a modeling viewpoint, these systems are of very high dimension. Most of the systems have a stochastic component, resulting in noisy outputs. Additionally, their models are usually not in standard state space form, meaning that the application of advanced control strategies is not straightforward. The small num...

A control flow graph represents all the flows of control that may arise during program execution. Since exception mechanism in Java induces flows of control, exception induced control flow have to be incorporated in control flow graph. In the previous research to construct control flow graph, they compute exception flow and normal flow at the same time while computing control flow information. ...

In this paper, we propose the use of a control theoretical approach in the design of fair queueing algorithms based on the Scalable Core (SCORE) / Dynamic Packet State (DPS) architecture. In particular, we make use of the Linear Quadratic control method from optimal control theory to design stable and robust systems that are simple to implement. Simulation results show that this approach gives ...

Although gross domestic product (GDP) is not intended to be a measure of societal welfare, it is often used as such. One shortcoming as a welfare measure is that it fails to account for the non-marketed value of natural resource flows. The difference between societal welfare and GDP is labelled the ‘welfare gap’. A model that accounts for both market and non-market income flows from natural cap...

Inventory control systems typically require the frequent updating of forecasts for many different products. In addition to point predictions, interval forecasts are needed to set appropriate levels of safety stock. The series considered in this paper are characterised by high volatility and skewness, which are both time-varying. These features motivate the consideration of forecasting methods t...

While active flow control is an established method for controlling flow separation on vehicles and airfoils, the design of the actuation is often done by trial and error. In this paper, the development of a discrete and a continuous adjoint flow solver for the optimal control of unsteady turbulent flows governed by the incompressible Reynoldsaveraged Navier-Stokes equations is presented. Both a...

Role-Based Access Control (RBAC) has been widely used for expressing access control policies. Administrative Role-Based Access Control (ARBAC) specifies how an RBAC policy may be changed by each administrator. Because sequences of changes by different administrators may interact in unintended ways, it is often difficult to fully understand the effect of an ARBAC policy by simple inspection. Thi...