Showing papers in "Operations Research Perspectives in 2018"

TL;DR: In this article, the authors identify critical success factors for lean implementation in SMEs and provide new insights into the role of knowledge as a causal factor in the successful implementation of lean and especially in organizations with limited resources.

TL;DR: In this article, the authors have focused on the implementation of total quality management in Indian industries and to study its influence on the organizational performance, and have found that there is no difference of literacy about TQM among the two groups and TQMs elements are positively related to the performance factors of the Indian organizations.

TL;DR: This study aims to propose a method to facilitate practitioners to logically select a supplier, even when uncertainty and/or unavailability of the assessment information emerge, using the TOPSIS method to be the basis.

TL;DR: An innovative way for processing the collected data and measurement of practice and performances of supply chain by means of transformation of the obtained linguistic values, using the appropriate fuzzy methods, into crisp values of research variable dimensions is shown.

TL;DR: A novel extension to the P-median problem, where the objective is to minimize the cumulative weighted distance between the emergency responders and the calls for service over the time horizon by coordinating the activities of two types of service providers, is presented.

TL;DR: A new methodology to recommend the most suitable Multi-Criteria Decision Making (MCDM) method from a subset of candidate methods when risk and uncertainty are anticipated is presented.

TL;DR: Estimating the stress level of components while operation modes are varying is a key issue for many prognostic models in condition monitoring.

TL;DR: In this paper, the authors proposed a pricing model that accommodates the random yield effect of product returns on pricing decisions for short life-cycle products in a closed-loop supply chain.

TL;DR: In this paper, the authors investigated the relationship between the authenticity and behavioral integrity of a leader and the success factors of a Six Sigma process and found that authentic leaders with high behavioral integrity can foster elevated levels of Six Sigma performance in the workplace.

TL;DR: In this paper, a cooperation model between a generating company and several marketers is presented, which considers two cooperation schemes: bi-level optimization and cooperation among the marketers, whose objective is to serve a common set of consumers and to increase their profits through cooperation.

TL;DR: A matrix-based method is proposed that provides scores for alternative project plans that host flexible task dependencies and undecided, supplementary task completion while also covering traditional time-quality-cost trade-off problems.

TL;DR: In this article, the authors used integer programming techniques to find reasonably good solutions with regard to the stability and the distributional constraints in a two-sided matching market, which can be useful in a variety of different applications, such as resident allocation with lower quotas, controlled school choice or college admissions with affirmative action.

TL;DR: The ultimate objective of this paper is to create currency portfolios based on a novel optimized trading strategy, which could beat constantly the main investors' benchmarks (i.e. S&P500, Barclay CTA Index).

TL;DR: A fuzzy multi-attribute decision making (MADM) approach integrating both subjective and objective weights for each criterion so that superior ergonomically designed product can be evaluated.

TL;DR: The research used a qualitative literature review approach to identify key contributions to this area and incorporate them into theoretical background to consolidate existing knowledge and theories on marketing-operations alignment and theoretical background for this organizational alignment.

TL;DR: In this article, the existence and uniqueness of equilibria for perfectly competitive markets in capacitated transport networks were studied and the equivalence of the market equilibrium model to a welfare maximization problem was shown.

TL;DR: Using the Markov process theory, the matrix analytical method and the probabilistic properties of the phase type distribution, the availability and the rate of occurrence of failures of the system are derived in transient and stationary regimes.

TL;DR: A novel mathematical model is proposed, which considers the specific dynamics of rentals on the relationship between inventory and pricing as well as realistic requirements from the flexible car rental business, such as upgrades.

TL;DR: A queueing system with processor sharing discipline under quite general assumptions about the arrival and service processes is considered and the joint distribution of the number of customers in the system and the states of the underlying arrival andService processes as well as the loss probabilities are obtained.

TL;DR: This paper proposes a hybrid GT and ABS model for the analysis of an e-commerce system in which a centralized reputation system is maintained by a trusted third party, and reports an extensive quantitative analysis in order to validate the proposed model and to evaluate the impact of a set of buyers’ and sellers’ policies on the behavior of the e- commerce system.

TL;DR: This work focuses on predicting the arrival time for incoming flights at two hub locations of a European network carrier and concludes that the optimal cost index level heavily depends on a flight’s distance, fuel costs and delay costs.

TL;DR: A multi-objective mixed integer programming model is proposed to minimize transportation costs, shortage costs, purchase costs, production costs and CO2 emissions of vehicles with fuzzy demand values.

TL;DR: In this article, the authors proposed an efficient method of finding an optimal solution for a multi-item continuous review inventory model in which a bivariate Gaussian probability distribution represents a correlation between the demands of different items.

TL;DR: This paper introduces a new ranking system where the data are preferences resulting from paired comparisons, where the proposed rankings outperform Bradley–Terry in a particular predictive comparison.

TL;DR: It is proved the location of robust solutions with respect to the magnitude of a possible decrease in uncertainty, namely when the uncertainty set shrinks, and convergence of the sequence of robust solution, is found.

TL;DR: This paper focuses on the aggregation process of cross-efficiency scores and proposes a new approach for deriving meaningful aggregation weights for a more comprehensive evaluation of the units and is likely to produce more meaningful rankings.

TL;DR: This paper considers a multi-index constrained transportation problem (CTP) of axial constraints with bounds on destination requirements, source availabilities, and multiple types of commodities, and presents several numerical examples to demonstrate the proposed algorithms.

TL;DR: A novel mathematical formulation for selecting an optimal discretization for a specific problem is introduced and a decision analyst can use the newly-created shortcuts in repeated decisions and improve the expected accuracy of the CE calculations.

TL;DR: In this article, the authors derive closed-form solutions for both two-and three-echelon supply chains under a manufacturer-stackelberg game framework where the supply chain members execute integrated procurement planning by taking account upto four consecutive selling periods.

TL;DR: Kriging metamodels are generated that best describe the nonlinear relationships between four environmental factors and three performance measures for Canadian softwood lumber firms and reveal the potential to improve the performance of the demand management process.