due to the special nature of agricultural activities and results of decisions influenced by the risk and uncertainty of these activities, consideration risk is essential in planning for agriculture sector. interval-valued fuzzy programming approach is advantage of in this study for considering the conditions of uncertainty and additionally emphasizing on the limitation of water resources in def...

In this paper, we consider a one dimensional stochastic system described by an ellipticequation. A spatially varying random coefficient is introduced to account for uncertainty orimprecise measurements. We model the logarithm of this coefficient by a Gaussian process andprovide asymptotic approximations of the tail probabilities of the derivative of the solution.

Uncertainty is a very important concern in production scheduling since it can cause infeasibilities and production disturbances. Thus scheduling nder uncertainty has received a lot of attention in the open literature in recent years from chemical engineering and operations research communities. he purpose of this paper is to review the main methodologies that have been developed to address the ...

Type-2 fuzzy set theory is one of the most powerful tools for dealing with the uncertainty and imperfection in dynamic and complex environments. The applications of type-2 fuzzy sets and soft computing methods are rapidly emerging in the ecological fields such as air pollution and weather prediction. The air pollution problem is a major public health problem in many cities of the world. Predict...

By adopting a real options framework, we develop and analyze a production control model that jointly incorporates process and market risks. In our model, process risk is typified by random yield variability while market risk is defined through demand uncertainty. The stochastic processes used to depict uncertainty in these state variables reflect a wide variety of distributional forms and are n...

......................................................................................................................................................... ii Acknowledgements ........................................................................................................................................iv List of tables ........................................................................

We introduce and study a semi-random multigraph process, which forms no-replacement variant of the process that was introduced in [3]. The starts with an empty graph on vertex set [n]. For every positive integers q \(1\le r\le n\), \(((q-1)n+r)\)th round decision-maker, called Builder, is offered \(\pi _q(r)\), where _1, \pi _2, \ldots \) sequence permutations \(S_n\), chosen independently unif...

This paper considers a stochastic SIR (susceptible→infective→removed) epidemic model in which individuals may make infectious contacts in two ways, both within ‘households’ (which for ease of exposition are assumed to have equal size) and along the edges of a random graph describing additional social contacts. Heuristically-motivated branching process approximations are described, which lead to...