to evaluate and predict component-based software security, a two-dimensional model of software security is proposed by stochastic petri net in this paper. in this approach, the software security is modeled by graphical presentation ability of petri nets, and the quantitative prediction is provided by the evaluation capability of stochastic petri net and the computing power of markov chain. each...

Accelerated degradation tests (ADTs) can provide timely relia bility information of product. Hence ADTs have been widely used to assess the lifetime distribution highly reliable products. In order properly predict distribution, modeling product’s path plays a key role in analysis. this paper, we use stochastic diffusion process describe and recursive formula for be obtained by using first passa...

Stochastic programming is a powerful analytical approach which permits the solving of sequential decision-making under uncertainty. Yet, it is not widely used, mainly because practitioners still find it difficult to handle and implement. In this paper we focus on tools to build such stochastic programming models. We show that algebraic modelling languages make it possible for users who are not ...

Intracellular transport and cytoskeletal organization are the result of an interaction between elastic filaments and force generation by motor proteins. The observed phenomena are still too complex for a complete theoretical description. Studies on simple model systems reveal interesting collective phenomena which can be understood on the basis of driven stochastic processes far from equilibrium.