Journal:Informatica
Volume 12, Issue 2 (2001), pp. 199–220
Abstract
The paper deals with a flow distribution problem with a piecewise-linear cost function. The problem is formulated as a piecewise-linear programming problem which is not separable with respect to separate variable group. The method for solving this problem is based on the extension of the idea of the simplex method to the class of non-separable piecewise-linear problems. It secures finding of a local solution to the problem after a finite number of iterations. The method uses the peculiarities of the problem constraints that make it possible to decompose the matrix of constraints to smaller ones and thus to diminish the volume of calculations.
Journal:Informatica
Volume 12, Issue 1 (2001), pp. 169–188
Abstract
A lot of data had to be processed and evaluated in carrying out multivariant design and multiple criteria analysis of a building life cycle. The number of feasible alternatives can be as large as 100 000. Each of the alternatives may be described from various perspectives (economic, technical, qualitative, technological, social, legislative, infrastructural, etc.). The problem arises how to perform multivariant design and multiple criteria analysis of the alternative variants based on this enormous amount of information. To solve this problem the methods of multivariant design and multiple criteria building life cycle analysis were developed. In order to demonstrate the theory an example is given in this paper.
Journal:Informatica
Volume 12, Issue 1 (2001), pp. 147–168
Abstract
In this paper it is outlined the methodology of the model MIREM (Multicriteria Industrial and Regional Economic Model) as the empirical framework for the implementation of an industrial policy in the CEECs countries aspiring to enter the European Union. Its epistemological foundations are taken from M. Porter Theory of Competitive Advantage and B. Balassa Theory of Economic Integration and focus mainly on the competitiveness concept.
The choice of multicriteria decision making (MCDM) method “Electre-tri”, presentation of criteria families and simulation of the MIREM by means of an analogue model are presented in order to assess the adequacy of the multicriteria methodology to the problematic of integration.
Journal:Informatica
Volume 12, Issue 1 (2001), pp. 133–146
Abstract
The aim of the work is to chose the best heating system for a museum building. The paper presents the criteria describing this problem. The three technically acceptable heating systems have been identified. The method allowing for the multi-criterion analysis has been selected with the assumption that the final result will be a final ranking of all alternatives. The ELECTRE III method has been chosen. This method helped to solve the problem of pointing at the best heating system.
Journal:Informatica
Volume 12, Issue 1 (2001), pp. 119–132
Abstract
Ex ante decision analysis has other problems than ex post analysis. One of the problems is the nature of the value system of the deciding person. Mostly, it will contain different values (criteria, points of view) which are not reducible to one measure. These cases of incommensurability are one reason for the incomparability of the decision options. There are other reasons why it seems highly unrealistic that we may assume the comparability of options as a general case for a rational decision maker.
Journal:Informatica
Volume 12, Issue 1 (2001), pp. 109–118
Abstract
This paper considers the technique to construct the general decision rule for the contradictory expert classification of objects which are described with many qualitative attributes. This approach is based on the theory of multiset metric spaces, and allows to classify a collection of multi-attribute objects and define the classification rule which approximates the set of individual sorting rules.
Journal:Informatica
Volume 12, Issue 1 (2001), pp. 101–108
Abstract
This paper considers some aspects of using a cascade-correlation network in the investment task in which it is required to determine the most suitable project to invest money. This task is one of the most often met economical tasks. In various bibliographical sources on economics there are described different methods of choosing investment projects. However, they all use either one or a few criteria, i.e., out of the set of criteria there are chosen most valuable ones. With this, a lot of information contained in other choice criteria is omitted. A neural network enables one to avoid information losses. It accumulates information and helps to gain better results when choosing an investment project in comparison with classical methods. The cascade-correlation network architecture that is used in this paper has been developed by Scott E. Fahlman and Cristian Lebiere at Carnegie Mellon University.
Journal:Informatica
Volume 12, Issue 1 (2001), pp. 89–100
Abstract
The new method for the construction of partial order on the set of multicriteria alternatives is presented. This method belongs to the family of Verbal Decision Analysis methods and gives a more efficient means of problem solution. The method is based on psychologically valid operations for information elicitation from a decision maker: comparisons of two distances between the evaluations on the ordinal scales of two criteria. The information received from a decision maker is used for the construction of a binary relation between a pair of alternatives which yields preference, indifference and incomparability relations. The notion of a method decisive power is introduced. The illustrative example is given.