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This article describes an in-class role-playing exercise, as well as a case study, on the application of mixed integer programming to help a hospital with physician scheduling. The intended audiences are graduate students or advanced undergraduate ...

Goal programming (GP) is a satisficing-based mathematical modelling technique. In this paper, cohort intelligence (CI) algorithm and its variations are applied to solve a variety of GP problems. The penalty function-based and probability-based constrained ...

This paper surveys the research effort of several authors to solve various multicriteria problems, using interval methods. These efforts fall naturally into two categories: approximating the whole Pareto sets and seeking a single solution point ...

Energy demand in Indonesia is increasing rapidly especially for the industrial and household sector. Natural gas is more desirable as the energy source for both sectors. The pipeline is needed to transport natural gas from the supply region to the ...

This paper aspires to present single and group decision‐making methods based on complex intuitionistic fuzzy (CIF) preference relations (CIFPRs). The presented work is divided into three folds. The first fold is that the concept of CIFPRs is ...

This paper proposes a new method for solving the problem of multicriteria optimization of a numerical vector function on a fuzzy set. The membership function of a fuzzy feasible set is joined to the original set of criteria that allows the ...

This study aims to develop a model of several conflicting objectives in the economic, environmental, energy, waste, and waste management sectors. In this paper, multi-objective optimization which commonly used to solve problems that have various ...

Due to the increase in energy demand, many countries suffer from energy poverty because of insufficient and expensive energy supply. Plans to use alternative power like nuclear power for electricity generation are being revived among developing countries. ...

A typical coast guard has complex responsibilities, subject to its multiple missions in maritime jurisdiction regions. These maritime jurisdiction regions can be partitioned into responsibility areas, and each type of coast guard vessel has a set of ...

Fuzzy Linear Fractional Programming problem has been used as an important planning tool for the different disciplines such as engineering, business, finance, economics, etc. In this paper, a new algorithm is developed to solve the Fuzzy Linear Fractional ...

This study attempts to develop a quasi type-2 fuzzy regression model in full quasi type-2 fuzzy environment. To estimate the parameters of the proposed model, first, a weighted distance between quasi type-2 fuzzy numbers is defined based on L1-norm. Then ...

In this paper, we propose a model and solution approach for a multi-item inventory problem without shortages. The proposed model is formulated as a fractional multi-objective optimisation problem along with three constraints: budget constraint, space ...

The mission of the Army Medical Department AMEDD is to provide medical and healthcare delivery for the U.S. Army. Given the large number of medical specialties in the AMEDD, determining the appropriate number of hires and promotions for each medical ...

Constrained reentry trajectory optimization for hypersonic vehicles is a challenging job. In particular, this problem becomes more difficult when several objectives with preemptive priorities are expected for different purposes. In this paper, a fuzzy ...

Nowadays, supply chain coordination (SCC) is considered by researchers and practitioners as one of the active research topics in production and operations management (POM). This paper addresses the development of a fuzzy-based possibility measure with ...

Bed management, an important function of any hospital, has a major impact on patient care, patient flow, patient and staff satisfaction, and ultimately on the hospital's operating margin. A key challenge in bed management is optimizing the bed-...

This paper presents a two-phase quantitative approach for enhanced index investing based on the mean-variance model and the goal programming method. In the first stage, we use the mean-variance theory to select better performing stocks for an investment ...

Location selection is a crucial decision in cost/benefit analysis of restaurants, coffee shops and others. However, it is difficult to be solved because there are many conflicting multiple goals in the problem of location selection. In order to solve ...

With more and more applications of the service-oriented methods in the business area, an overwhelming number of business services have arisen. These business services collaborate with each other and form a business network or a services-oriented ...