We address the aircraft recovery problem faced by a Brazilian oil and gas company during its offshore operations. This problem involves hiring helicopters from an outsourced company to transport personnel from an airp...
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We address the aircraft recovery problem faced by a Brazilian oil and gas company during its offshore operations. This problem involves hiring helicopters from an outsourced company to transport personnel from an airport to maritime units. The performed flights are subject to disruptions and might require rescheduling. To assist with decision-making in such situations, we introduce a discrete-time integer linear programming (ILP) model that considers company-specific attributes, including a lexicographic objective function that prioritizes (i) the reduction of flight transfers to the next day;(ii) the reduction of helicopter utilization;and (iii) the reduction of flight delays of the day. We develop four different solution approaches using hierarchical goal programming based on the proposed model, aided by enhancements and valid inequalities. Computational experiments using both real-world and simulated instances demonstrate that our approaches can provide effective solutions for most instances using a general-purpose ILP solver within acceptable computation times.
goal programming models have been highly relevant for portfolio management and selection due to their ability to handle multiple conflicting objectives simultaneously. These models possess simple and effective and fea...
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goal programming models have been highly relevant for portfolio management and selection due to their ability to handle multiple conflicting objectives simultaneously. These models possess simple and effective and features that support the decision-making process by incorporating different types of risk. Using a bibliometric approach, we collected 155 articles published from 1973 to 2022 from journals indexed in the Scopus database. Multiple software platforms (RStudio, VOSviewer, and Excel) were employed to analyze the data and depict the most active scientific actors in terms of countries, institutions, sources, and authors. Our review revealed three different stages and an upward trajectory in the publication trend starting from 2003 and found the predominant application of some goal programming models, such as the stochastic, fuzzy, and polynomial models. Moreover, we discovered that Spain, the USA, and China were the top three contributors to the literature, indicating a global interest in this area. The global relevance of goal programming is confirmed by the top 20 authors and their collaboration networks. We observed the dialogue between different disciplines, namely Decision Science and Management/Finance. Our study contributes to the body of knowledge in the intersection between goal programming and financial portfolios by (1) identifying the most influential articles and authors on this topic and (2) mapping and visualizing the trends in this field of research through network and cluster analysis.
Although goal programming is one of the most used techniques for modeling and solving multi-objective optimization problems due to modeling elegance and mathematical simplicity. However, the existing goal programming ...
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Although goal programming is one of the most used techniques for modeling and solving multi-objective optimization problems due to modeling elegance and mathematical simplicity. However, the existing goal programming methods have some deficiencies in assigning the weights and then finding the solution per the objectives' priority to tackle the incommensurabilty in heterogeneous objectives. Therefore, this article proposes an efficient scalarization technique to solve the multi-objective optimization problem by introducing a modified goal function. The performance of the proposed method is evaluated using some closeness measure to the ideal solution for several test problems. A real application of the proposed method is illustrated in finding the best locations to establish municipal solid waste (MSW) management intermediate facilities in Nashik city (India). The model selects the three best locations out of the given eight potential locations to establish facilities by considering environmental and economic objectives. Overall, this study provides a theoretical advancement supported by a real-life MSW management application.
Food banks play a crucial role in the combat against hunger and food insecurity, being responsible for distributing donated food to the population who are facing restrictions in their access to food. This process pres...
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Food banks play a crucial role in the combat against hunger and food insecurity, being responsible for distributing donated food to the population who are facing restrictions in their access to food. This process presents several challenges in terms of adopting the principles of equity, efficiency, and effectiveness, including when the amount of food available is insufficient to meet all demands. In this context, this study proposes an optimization model using the goal programming technique applied to food distribution in search of improved agility and equity in the process. The model was implemented and analyzed using a fictional scenario and also applied to a realistic scenario that describes the operation of a Brazilian food bank. The results indicate that Chebyshev goal programming is effective in optimizing the distribution process, and promoting equity and efficiency in the assistance provided to social institutions. This approach is an important tool to help managers develop agile process planning strategies.
Optimizing production planning problems is often defined by conflicting objectives, such as minimizing costs, maximizing benefits, and meeting product quantity requirements under uncertainties and within fuzzy environ...
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Several factors affect the flexibility and the complexity of the project selection and the contractor selection problems. Project portfolio managers are expected to select the best combination of projects and contract...
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Several factors affect the flexibility and the complexity of the project selection and the contractor selection problems. Project portfolio managers are expected to select the best combination of projects and contractors considering multiple conflicting objectives in a multi-period planning horizon. In this paper, we propose an integrated project portfolio optimization and contractor selection problem. The problem is modeled through a multi-objective Mixed Integer Linear programming (MILP) model. Three solution approaches including goal programming (GP), Fuzzy goal programming (FGP), and fuzzy goal programming considering a fuzzy preference relationship are proposed. All solution approaches have been applied to a real case. The computational results show the out performance of FGP considering fuzzy relations. The time complexity of the proposed models in the sense of the relation of CPU time and the number constraints and variables of the models were discussed.
The highly competitive grocery retail industry has annual sales of roughly half a trillion dollars in the US. While gross margins average about 28% of sales, net profits after taxes are only 1% industry-wide, causing ...
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The highly competitive grocery retail industry has annual sales of roughly half a trillion dollars in the US. While gross margins average about 28% of sales, net profits after taxes are only 1% industry-wide, causing retailers to continually search for operational improvements that increase profitability and improve customer service. One important decision that affects both of these goals is how to allocate shelf space to different products. This paper addresses the specific problem of how to allocate a fixed amount of shelf space to different products within a particular product category, such as pickles or jelly. A nonlinear integer goal programming formulation is proposed that considers both profitability and customer service factors. This decision support tool shows the tradeoffs between increased profitability and improved customer service, and allows the manager to make the best tradeoff for the situation. An alternate approach is also proposed. (c) 2006 Elsevier B.V. All rights reserved.
This paper develops the goal programming technique to solve the multiple objective assignment problem. The required model is formulated and an appropriate solution method is presented. The proposed method, which is a ...
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This paper develops the goal programming technique to solve the multiple objective assignment problem. The required model is formulated and an appropriate solution method is presented. The proposed method, which is a decomposition method, exploits the total unimodularity feature of the assignment problem and effectively reduces the computational efforts. Some issues related to the efficiency of a GP solution are stated and some specialized techniques for detecting and restoring efficiency are proposed. (C) 2007 Elsevier Inc. All rights reserved.
In a managerial position, the ultimate objective is to take the right decision for the decision maker (DM) when transportation parameters are uncertain due to the globalization and other uncontrollable influences. In ...
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In a managerial position, the ultimate objective is to take the right decision for the decision maker (DM) when transportation parameters are uncertain due to the globalization and other uncontrollable influences. In this paper, fuzzy membership function tactic based on goal programming to obtain the desired compromise solution of a multi-objective transportation problem (MOTP) in uncertain environment is proposed where the DM can choose a confidence level for different parameters. On the basis of DM's choice on a particular confidence level, a compromise solution is obtain indicating the satisfaction level of the DM if the problem is feasible for this chosen confidence level. Uncertain normal distribution is used to convert the parameters from uncertain to a certain one. Simple linear programming problem (LPP) is designed using fuzzy linear membership function where the upper and lower values of the objectives are the desired goals of the DM. A numerical illustration is furnished to establish the effectiveness of the designed model whereas the single objective transportation problems are solved by TORA and LPPs are solved by using LINGO for operations research. (C) 2020 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University.
This paper presents an application of the Resource Planning and Management Systems (RPMS) network approach to the goal programming (GP) problem as an alternative to several other approaches used in the GP process. The...
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This paper presents an application of the Resource Planning and Management Systems (RPMS) network approach to the goal programming (GP) problem as an alternative to several other approaches used in the GP process. The RPMS approach to solving the GP problem is illustrated through an example. Sensitivity analysis is also discussed.
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