Showing papers in "European Journal of Operational Research in 1977"

TL;DR: A survey of recent developments in goal programming and multiple objective optimizations can be found in this paper with emphasis on the authors' own work (with others) in a variety of applications.

TL;DR: A branch and bound algorithm is proposed, based on the above mentioned upper bound and on original backtracking and forward schemes, which is superior to the fastest algorithms known at present.

TL;DR: In this paper, it is argued that the preoccupation of Operational Researchers and Management Scientists with optimization and objectivity leads to their withdrawing from reality, to their "opting out".

TL;DR: In this paper, a multiparametric method based on earlier works of the author is presented, where efficient vertices and efficient edges are generated via one subprogram, which works as a simple linear programming problem, and just by inspection of these results higher dimensional efficient faces are determined.

TL;DR: In this article, the authors considered the problem of planning a preferred position of a new product in an attribute space as a mixed integer non-linear programming problem and proposed a procedure to solve it.

TL;DR: In this paper, an algorithm for finding transient solutions in Markovian queues is given and it is applied to find transient solutions for the M/M/1 queuing problem.

TL;DR: A method for determining all the relative and absolute redundant objectives, based on this theory, is given and Illustrative examples demonstrate the procedure.

TL;DR: In this article, the concept of generalized saddlepoints for vector-valued functions is introduced, and the duality theory of Gale, Kuhn and Tucker for linear vextor optimum problems is embedded into tlie generalized saddlepoint theory.

TL;DR: In this article, a method is described for forecasting spares demand from data on model sales using concepts borrowed from renewal theory, which is particularly useful for producing a forecast of all-time future demand for a spare so that a decision may be made about the timing of the final production run.

TL;DR: For four commonly used partitioning objective functions within cluster analysis, the authors give reproducible and representative numerical results concerning their approximate minimization with the exchange method, and give recommendations for successively using certain objective functions and for selecting suitable initial partitions.

TL;DR: In this article, the authors studied the machine interference problem in which the running times follow the negative exponential distribution, the repair times the Erlang distribution and the number of operatives is more than one.

TL;DR: In this paper, a method of solving the classical inventory problem for the case where the demand rate is decreasing negative-exponentially is presented, and a simple heuristic policy, derived from the optimal policy, is shown to be only slightly inferior.

TL;DR: The Lexicographic Decision Criterion as discussed by the authors is a defensive decision criterion based on preference relations induced by a connected quasi-order-valued utility function, and no assumptions are made about the structure of the set of strategies.

TL;DR: In this paper, the authors present an enquiry into the reasons why there are so few published practical examples of the application of cybernetics in management, and they take the case for such an approach as presented in Platform for Change by Professor Stafford Beer and comments on and criticises the separate papers presented in that volume.

TL;DR: Initial experiments were performed to investigate the suitability of the commercial game “Diplomacy” which has no chance element, and emphasises negotiation at the expense of board play, and the problems were resolved by the “Intelligence Man” system which allows apparent complexity, and rich interaction to be totally controlled.

TL;DR: The aim of this article is to point out some basic aspects of the OR/MS implementation problem and to outline a frame of reference for dealing with the OR-MS process.

TL;DR: This paper showed that the distributions of NPV and IRR which are output from risk evaluation models are often approximately normal, and that the only important features of the distribution of the variables which are input to risk evaluation model are their means and standard deviations.

TL;DR: In this paper, a distinction is drawn between management, management science and operational research, which determines the content of operational research courses Personal views are expressed on how the subjects should be taught and practical experience given, so fitting graduates for careers in operational research and in management.

TL;DR: A case study for the design of a spare parts inventory control system is described, with main emphasis on the problems of applying and tailoring forecasting and inventory control theory to suit the needs of a particular problem.

TL;DR: A simple model in the form of an open queue network with blocking has been developed which is in general applicable to disc I/O systems which have low disc utilization.

TL;DR: The results of Dantzig and Fulkerson are extended to the case where more than one type of vehicle can be used in the determination of an optimal fleet.

TL;DR: This paper develops a queueing model for an I/O and CPU overlap system and formulates two types of performance measures that are optimized for the given systems by using a Geometric Programming algorithm, thereby achieving better utilization of existing resources.

TL;DR: In this paper, the authors present two methods for calculating solutions to a system of linear inequalities which have certain prescribed distance properties to the constraints (referred to as flexibility properties), which are particularly applicable to the analysis of linear programming models with uncertain and inaccurate constraint parameters and in cases where operational adjustments are desired.

TL;DR: A basic requirement of any distribution studys is to estimate the location of, and the demand from, customers, and a description of methods for obtaining these estimates is described.