The technical efficiency involved in cocoa production in Cross River State was estimated using the stochastic frontier production function analysis. The effects of some selected socio- economic characteristics of the farmers on the efficiency indices were also estimated. The study relied upon primary data generated from interviewing cocoa farmers using a set of structured questionnaire. A multi...

This ‎paper presents a new multi-objective fuzzy stochastic data envelopment analysis model          (MOFS-DEA) under mean chance constraints and common weights to estimate the efficiency of decision making units for future financial periods of them. In the initial MOFS-DEA ‏model, the outputs and inputs are ‎characterized by random triangular fuzzy variables with normal distribution, in which ...

In this study, a new stochastic model is proposed to deal with a multi-product, multi-period, multi-stage, multi-site production and transportation supply chain planning problem under demand uncertainty. A two-stage stochastic linear programming approach is used to maximize the expected profit. Decisions such as the production amount, the inventory level of finished and semi-finished product, t...

A group of cooperative aerial robots can be deployed to efficiently patrol a terrain, in which each robot flies around an assigned area and shares information with the neighbors periodically order protect or supervise it. To ensure robustness, previous works on these synchronized systems propose sending neighboring case it detects failure. In deal unpredictability improve efficiency determinist...

Autonomous aerial vehicles play an important role in military applications such as in search, surveillance and reconnaissance. Multi-player stochastic pursuit–evasion (PE) differential game is a natural model for such operations involving intelligent moving targets with uncertainties. In this paper, some fundamental issues of stochastic PE games are addressed. We first model a general stochasti...

performance evaluation of electricity distribution units is an important issue between researchers and regulators. classic data envelopment analysis models with deterministic data have been used by many authors to measure efficiency of power distribution units in different countries. however, data envelopment analysis with stochastic data are rarely used to measure efficiency of distribution co...

Abstract This paper presents a comparison of two multi-fidelity methods for the forward uncertainty quantification naval engineering problem. Specifically, we consider problem quantifying hydrodynamic resistance roll-on/roll-off passenger ferry advancing in calm water and subject to operational uncertainties (ship speed payload). The first four statistical moments (mean, variance, skewness, kur...

A maximum a posteriori probability (MAP) code acquisition scheme is proposed which utilizes all the available information by exploiting stochastic properties of spreading codes. Application of this method shows: i) code acquistion superiority of Bologna codes (Markov codes having eigenvalue of the transition probability matrix λ = √ 3 − 2) over independent and identically distributed (i.i.d.) c...