Showing papers in "European Journal of Operational Research in 1990"

TL;DR: The Analytic Hierarchy Process (AHP) as discussed by the authors is a multicriteria decision-making approach in which factors are arranged in a hierarchic structure, and the principles and philosophy of the theory are summarized giving general background information of the type of measurement utilized, its properties and applications.

TL;DR: The paper develops a consistent and systematic approach for a comprehensive typology integrating the various kinds of problems, founded on the basic logical structure of cutting and packing problems.

TL;DR: The Analytic Hierarchy Process (AHP) is a theory of measurement for dealing with quantifiable intangible criteria that has found rich applications in decision theory, conflict resolution and in models of the brain.

TL;DR: In this paper, the best heuristic methods known up to now are compared to solve the flow shop sequencing problem and they improve the complexity of the best one, and a parallel taboo search algorithm is presented and experimental results show that this heuristic allows very good speed-up.

TL;DR: The Simulated Annealing algorithm and the physical analogy on which it is based are described and suggestions are made for ways to improve the performance of the algorithm by modifying the ‘pure’ SA approach.

TL;DR: In this article, a mathematical programming problem whose objective function has interval coefficients is investigated and the order relations which represent the decision maker's preference between interval profits are defined by the right limit, the left limit, center and width of an interval.

TL;DR: The major research results in deterministic parallel-machine scheduling theory will pass a survey and it is revealed that there exist a lot of potential areas worthy of further research.

TL;DR: In this paper, the authors discuss the methodology of an empirical study that was employed to measure the operating efficiencies of a set of 20 bank branches of a major Turkish Commercial Bank offering relatively homogeneous products in a multi-market business environment.

TL;DR: In this article, Simulated Annealing is applied to the Quadratic Assignment Problem (i.e., the assignment of inter-communicating objects to locations to minimize the total cost of communication between them).

TL;DR: In this article, the authors analyse multiple criteria concepts, models and procedures from both these viewpoints, and propose a framework for multiple criteria decision aid (MCDA) to enhance the degree of conformity and coherence between the evolution of decision-making process and the value systems and objectives of those involved in this process.

TL;DR: The broad and multidisciplinary literature of location analysis is reviewed to uncover the scope of research that has examined the multiobjective aspects of this problem domain.

TL;DR: In this paper, the authors considered the problem of finding the locations of the hub facilities and the node assignments that minimize the total transportation cost, and formulated the problem as given below.

TL;DR: Some multi-heuristic procedures employing parallel rules as well as serial rules are suggested to solve the well known NP-hard, resource-constrained project scheduling problem.

TL;DR: The heuristic, developed to get an initial lower bound, finds an optimal solution for most of the random test problems, and an extension to the basic problem that allows for preselected points, which may correspond to existing facility locations.

TL;DR: In this article, a branch-and-bound procedure using Lagrangean relaxation for determining both lower bounds and feasible solutions is presented, and the relaxed problems are solved by dynamic programming.

TL;DR: In this article, the authors define and differentiate two broad types of electronic meeting systems: Group Decision Support System (GDSS) and Group Communication Support Systems (GCSS) and present a framework and method for analyzing the impacts of such information systems on groups that they developed from the literature of organization behavior and group psychology.

TL;DR: In this paper, the problem of minimizing the makespan in a single facility problem where the processing time of a job consists of a fixed and a variable part has been considered and the variable part depends on the start time of the job.

TL;DR: The eigenvector method deals with two questions simultaneously, closeness and order, and they belong to the field topology of order as mentioned in this paper, and the metric idea of closeness is inadequate to judge what is a good approximation to data involving order relations.

TL;DR: In this article, the authors present a comparative analysis of fourteen heuristic rules which examine the impact of the number of different types of items in a load on the loading efficiency achieved.

TL;DR: In this article, a classification scheme is proposed for a class of models that arise in the area of vehicle routing and scheduling and illustrated on a number of problems that have been considered in the literature.

TL;DR: For this three-dimensional cutting-stock problem various suboptimal solutions are generated using the proposed computer-based heuristic for packing rectangular boxes of different size in a shipping container of known dimensions.

TL;DR: A very general, yet powerful backtracking procedure for solving the duration minimization and net present value maximization problems in a precedence and resource-constrained network of the PERT/CPM variety.

TL;DR: Generalized DP avoids the potential pitfalls created by this absence of monotonicity, thereby guaranteeing optimality in a prototypical multicriteria DP problem, namely a multicritical version of the shortest path problem.

TL;DR: This work offers an elementary approach to the problem of maximizing the net present value of a project through the manipulation of the times of realization of its key events that maintains the essential simplicity of the problem.

TL;DR: The main emphasis of the paper is in presenting the case-based reasoning aspect of the model, which includes reasoning to accomodate departures from rationality in the behavior of the agents, and mechanisms to support dynamic problem restructuring.

TL;DR: A formal treatment of flexibility by using decision theory in a two-period decision problem where each action at the first period has a flexibility measure the number of options open at the second period is presented.

TL;DR: In this paper, a case study in a semi-repetitive, make-to-order environment illustrates some potential benefits from such an integrated push-pull manufacturing strategy and the major issue is the linking of the manufacturing strategy to the business strategy by changing the manufacturing planning and control focus.

TL;DR: In this paper, the sensitivity analysis of the additive model in data envelopment analysis is studied, and sufficient conditions for simultaneous change of all outputs and all inputs of an efficient decision making unit which preserves efficiency are established.

TL;DR: The model is based on a general service time approximation model for spatially distributed queueing systems and is tailored for emergency medical systems that experience low vehicle utilizations.