Truck-Shovel fleet, as the most common transportation system in open-pit mines, has a significant part of mining costs, for which optimal management can lead to substantial cost reductions. Among the available dispatch mathematical models, the multi-stage approach is well suited for allocating trucks to respected shovels in a dynamic dispatching program. However, with this kind of modeling sequ...

This paper proposes a bi-objective model for the facility location problem under a congestion system. The idea of the model is motivated by applications of locating servers in bank automated teller machines (ATMS), communication networks, and so on. This model can be specifically considered for situations in which fixed service facilities are congested by stochastic demand within queueing frame...

in this paper, a new hybrid model has been proposedfor the loans allocation of banking investment projects. in this model, firstlyuncertainty in the cash flows parameters of projects is simulated usingprobability distributions. the statistical analysis about the indexes ofengineering economic is used for the elimination of non-economical projects.secondly, remained projects are ranked based on ...

We present a semi-parametric model that describes and predicts pricing behaviors in a market environment using a Gaussian mixture model and a Markov process. We show how the model can be used to guide resource allocation and pricing decisions in an autonomous trading agent. We validate our model by presenting results obtained in the Trading Agent Competition for Supply Chain Management.

Many portfolio optimization problems deal with allocation of assets which carry a relatively high market price. Therefore, it is necessary to determine the integer value of assets when we deal with portfolio optimization. In addition, one of the main concerns with most portfolio optimization is associated with the type of constraints considered in different models. In many cases, the resulted p...

introduction: family physician plan in iran was conducted to establish service referral system. its urban step began in 2012 and it was supposed that the effectiveness is enhanced and the costs are reduced. the implementation of this program has faced some challenges, especially in human resources management. the aim of this study was to optimally allocate human resources for urban family physi...