Different multiple objectives are expressed in different units, which makes optimization difficult. Therefore the internal mechanical solution of a Ratio System, producing dimensionless numbers, is ...preferred to Weights which are most of the time used to compare the different units. In addition, the ratio system creates the opportunity to use a second approach: a non-subjective Reference Point Theory. The two approaches form a control on each other. The choice of the objectives is even more non-subjective if the opinion of all stakeholders interested in the issue is involved by the use of the Ameliorated Nominal Group and Delphi Techniques. The overall theory is called MOORA (Multi-Objective Optimization by Ratio Analysis). The results are still more convincing if a Full Multiplicative Form is added to MOORA under the name of MULTIMOORA. At that moment the control by three different approaches forms a guaranty for a solution being as non-subjective as possible. MULTIMOORA is used to decide upon a bank loan to buy property.
The countries of Central and Eastern Europe moved from a previously centrally planned economy to a modern transition economy with strong market aspects. This paper proposes project management as an ...answer to this transition. Traditional Cost-Benefit analysis does not respond to this purpose. Indeed Cost-Benefit analysis is only interested in one specific project and not in a competition between projects. In addition all goals (objectives) have to be translated into money terms, leading sometimes to immoral consequences. On the contrary Multi-Objective Optimization takes care of different objectives, whereas the objectives keep their own units. However different methods exist for the application of Multi-Objective Optimization. The authors tested them after their robustness resulting in seven necessary conditions. MOORA (Multi-Objective Optimization by Ratio analysis) and MULTIMOORA (MOORA plus Full Multiplicative Form), assisted by Ameliorated Nominal Group and Delphi Techniques, satisfy the seven conditions, although in a theoretical way. A simulation exercise illustrates the use of these methods, ideals to be strived for as much as possible.
An approach is needed to localize in an optimal way a seaport facing different indicators, criteria or objectives sometimes from different groups or individuals. The internal mechanical solution of a ...Ratio System, producing dimensionless numbers, is preferred to Cost-Benefit or to Weights which most of the time are used to equalize the different units. The ratio system creates the opportunity to use a second approach: a non-subjective Reference Point Theory based on the found ratios. The two approaches form a control on each other. This theory is called MOORA (Multi-Objective Optimization by Ratio Analysis). As an application a ranking is made for the best location of a new seaport or for the expansion of an existing one given a set of objectives to be fulfilled.
Multi-Objective Optimization takes care of different objectives with the objectives keeping their own units. The internal mechanical solution of a Ratio System, producing dimensionless numbers, is ...preferred. The ratio system creates the opportunity to use a second approach: a Reference Point Theory, which uses the ratios of the ratio system. This overall theory is called MOORA (Multi-Objective Optimization by Ratio Analysis). The results are still more convincing if a Full Multiplicative Form is added forming MULTIMOORA. The control by three different approaches forms a guaranty for a solution being as non-subjective as possible. MULTIMOORA, tested after robustness, showed positive results.
The inequality between the regional incomes in a nation with a developed fiscal and parafiscal regime including social security will be equilibrated automatically by transfer payments from the richer ...to the poorer regions. The automatic system is not a guaranty for success. Internationally a project oriented system of the international organizations is known instead of an automatic system but the final goal is not always very clear. Multiple Objectives Optimization looks more robust to obtain regional and international development. Moreover a system of transfer payments is not sufficient to measure the well being of a regional population. In the well-being economy, each individual would have to feel good concerning material wealth, health, education, all kind of security and concerning the environment. With other words, multiple objectives have to be fulfilled. However, these different multiple objectives are expressed in different units. Weights are most of the time used to equalize these different units. Introduction of weights means introduction of subjectivity. In order to avoid this dilemma, the internal mechanical solution of a ratio system, producing dimensionless numbers, is preferred: MOORA. In addition, this outcome creates the opportunity to use an additional non-subjective reference point theory. The choice and importance of the objectives is also non-subjective if all stakeholders involved come to an agreement. This theory is applied on the different counties of Lithuania. At that moment it is no more only a question of redistribution of income but also of a national policy of new constructions, of tourism development, of pollution abatement and of energy renewables, after the European Commission "related to the promotion of local employment". PUBLICATION ABSTRACT
This paper presents the process of effective selection of building elements for renovation important for energy saving in buildings. A large part of energy is lost in non-effective buildings. ...Therefore, in renovation of buildings, it is important to select effective structural improvements. Building insulation could not only save energy but also time, money and materials, which means that different objectives expressed in different units have to be fulfilled. Although different methods exist for the application of Multi Objective Optimisation, MULTIMOORA, which is composed of three sub-methods - Ratio System, Reference Point Method that uses ratios from the ratio system, and the Full Multiplicative Form - was preferred. Consequently, different solutions for building envelope renovation were ranked by MULTIMOORA as applied for masonry buildings from the Soviet period.
Multi-objective decision-making for road design Brauers, Willem Karel M.; Zavadskas, Edmundas Kazimieras; Peldschus, Friedel ...
Transport (Vilnius, Lithuania),
01/2008, Letnik:
23, Številka:
3
Journal Article
Recenzirano
Multi-objective analysis is a popular tool to solve many economic, managerial and construction problems. The objective of this research is to develop and implement a methodology for multi-objective ...optimization of multi-alternative decisions in road construction. After a rough overview of the articles dealing with the multi-objective decision and assessment of road design alternatives described by discrete values, Multi-Objective Optimization on the basis of the Ratio Analysis (MOORA) method was selected. This method focuses on a matrix of alternative responses on the objectives. A case study demonstrates the concept of multi-objective optimization of road design alternatives and the best road design alternative is determined.
It is the intention of the European Union to create a growing and sustainable European economy by 2020, a much more moderate target than the 2010 target of becoming the most competitive and dynamic ...knowledge-based economy in the world. This intention has to be supported by an adequate Optimization and Decision Support System.
Therefore, MULTIMOORA is proposed. MULTIMOORA is a quantitative method, which compares multiple and optimum objectives, expressed in different units, as much as possible on a non-subjective basis. In opposition to similar methods MULTIMOORA does not need normalization, being based on dimensionless measures. Importance of an objective can eventually be given by the stakeholders concerned. MULTIMOORA is composed of three approaches: Ratio System, Reference Point and Multiplicative Form Methods, all of the same importance and each controlling each other. Twenty two objectives, 10 originating from statistics and 12 from statistics and forecasts, important for the future, characterize the 27 EU-Countries economies as a preparation for 2020. Which of these countries are the best prepared for 2020? A Dominance Theory, summarizing the three obtained ordinal numbers per country, ranks the 27 countries for that purpose.
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