100 research outputs found

    The induced 2-tuple linguistic generalized OWA operator and its application in linguistic decision making

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    We present the induced 2-tuple linguistic generalized ordered weighted averaging (2-TILGOWA) operator. This new aggregation operator extends previous approaches by using generalized means, order-inducing variables in the reordering of the arguments and linguistic information represented with the 2-tuple linguistic approach. Its main advantage is that it includes a wide range of linguistic aggregation operators. Thus, its analyses can be seen from different perspectives and we obtain a much more complete picture of the situation considered and are able to select the alternative that best fits with with our interests or beliefs. We further generalize the operator by using quasi-arithmetic means, and obtain the Quasi-2-TILOWA operator. We conclude this paper by analysing the applicability of this new approach in a decision-making problem concerning product management.linguistic decision making, linguistic generalized mean, 2-tuple linguistic owa operator, 2-tuple linguistic aggregation operator

    The generalized index of maximum and minimum level and its application in decision making

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    The index of maximum and minimum level is a very useful technique, especially for decision making, which uses the Hamming distance and the adequacy coefficient in the same problem. In this paper, we suggest a generalization by using generalized and quasi-arithmetic means. As a result, we will get the generalized ordered weighted averaging index of maximum and minimum level (GOWAIMAM) and the Quasi-OWAIMAAM operator. These new aggregation operators generalize a wide range of particular cases such as the generalized index of maximum and minimum level (GIMAM), the OWAIMAM, the ordered weighted quadratic averaging IMAM (OWQAIMAM), and others. We also develop an application of the new approach in a decision making problem about selection of products.generalized mean, index of maximum and minimum level, quasi-arithmetic mean, decision making, owa operator

    Decision making techniques with similarity measures and OWA operators

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    We analyse the use of the ordered weighted average (OWA) in decision-making giving special attention to business and economic decision-making problems. We present several aggregation techniques that are very useful for decision-making such as the Hamming distance, the adequacy coefficient and the index of maximum and minimum level. We suggest a new approach by using immediate weights, that is, by using the weighted average and the OWA operator in the same formulation. We further generalize them by using generalized and quasi-arithmetic means. We also analyse the applicability of the OWA operator in business and economics and we see that we can use it instead of the weighted average. We end the paper with an application in a business multi-person decision-making problem regarding production management

    OWA operators in human resource management

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    We develop a new approach that uses the ordered weighted averaging (OWA) operator in different methods for the selection of human resources. The objective of this new model is to manipulate the neutrality of the old methods, so the decision maker can select human resources according to his degree of optimism or pessimism. In order to develop this model, first, a short revision of the OWA operators is introduced. Next, we briefly explain the general model for the selection of human resources and suggest three new indexes for the selection of human resources that use the OWA operator and the hybrid average in the Hamming distance, in the adequacy coefficient and in the index of maximum and minimum level. The main advantage of this method is that it is more complete than the previous ones so the decision maker gets a better understanding of the decision problem. The work ends with an illustrative example that shows the results obtained by using different types of aggregation operators in the new approaches.

    OWA Operators in Generalized Distances

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    Different types of aggregation operators such as the ordered weighted quasi-arithmetic mean (Quasi-OWA) operator and the normalized Hamming distance are studied. We introduce the use of the OWA operator in generalized distances such as the quasi-arithmetic distance. We will call these new distance aggregation the ordered weighted quasi-arithmetic distance (Quasi-OWAD) operator. We develop a general overview of this type of generalization and study some of their main properties such as the distinction between descending and ascending orders. We also consider different families of Quasi-OWAD operators such as the Minkowski ordered weighted averaging distance (MOWAD) operator, the ordered weighted averaging distance (OWAD) operator, the Euclidean ordered weighted averaging distance (EOWAD) operator, the normalized quasi-arithmetic distance, et

    The induced generalized OWA operator

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    We present the induced generalized ordered weighted averaging (IGOWA) operator. It is a new aggregation operator that generalizes the OWA operator by using the main characteristics of two well known aggregation operators: the generalized OWA and the induced OWA operator. Then, this operator uses generalized means and order inducing variables in the reordering process. With this formulation, we get a wide range of aggregation operators that include all the particular cases of the IOWA and the GOWA operator, and a lot of other cases such as the induced ordered weighted geometric (IOWG) operator and the induced ordered weighted quadratic averaging (IOWQA) operator. We further generalize the IGOWA operator by using quasi-arithmetic means. The result is the Quasi-IOWA operator. Finally, we also develop a numerical example of the new approach in a financial decision making problem

    Decisión making with induced aggregation operators and the adequacy coefficient

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    We present a method for decision making by using induced aggregation operators. This method is very useful for business decision making problems such as product management, investment selection and strategic management. We introduce a new aggregation operator that uses the induced ordered weighted averaging (IOWA) operator and the weighted average in the adequacy coefficient. We callit the induced ordered weighted averaging weighted averaging adequacy coefficient (IOWAWAAC) operator. The main advantage is that it is able to deal with complex attitudinal characters in the aggregation process. Thus, we are able to give a better representation of the problem considering the complex environment that affects the decisions. Moreover, it is able to provide a unified framework between the OWA and the weighted average. We generalize it by using generalized aggregation operators, obtaining the induced generalized OWAWAAC (IGOWAWAAC) operator . We study some of the main properties of this approach. We end the paper with a numerical example of the new approach in a group decision making problem in strategic managemen

    Analysis of luxury resort hotels by using the Fuzzy Analytic Hierarchy Process and the Fuzzy Delphi Method

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    Experience Economy is an accelerator switching the experience process of consumption into eternal memory, perfecting value and promoting positive after-buying intention. This research uses the Fuzzy Delphi Method (FDM) and Fuzzy Analytic Hierarchy Process (FAHP) to construct a system of evaluation criteria focused on understanding the luxury resort hotels (LRHs) industry in Taiwan and Macao. One finding of this study is that objective hotels in these two territories exhibit different hotel operating characteristic (the unity LRHs mode in Taiwan vs involving casino LRHs in Macao) and customer markets. These Macanese LRHs define them as international operations, in contrast the Taiwanese position themselves as domestic businesses. The other finding is that Taiwan based evaluation criteria on consumer-orientation and operation and management, while Macao stressed evaluation based on operation and management to manage LRHs industry

    Herramientas para la toma de decisiones en la planificación financiera de la jubilación

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    La desfavorable evolución de las variables demográficas y económicas supone una agravación de la sostenibilidad del sistema público de pensiones español, lo cual también dificulta poder mantener la suficiencia de las pensiones públicas para la jubilación. En consecuencia, los trabajadores se plantean invertir en instrumentos de ahorro privado para complementar la pensión pública y así garantizar la suficiencia de ingresos en el momento de la jubilación. El trabajo plantea herramientas alternativas para seleccionar el producto de ahorro para la jubilación más conveniente. Estas herramientas se basan en el uso del operador linguistic ordered weighted averaging (LOWA), el operador induced linguistic ordered weighted averaging (ILOWA), el operador linguistic ordered weighted averaging distance (LOWAD) y el operador linguistic induced ordered weighted averaging distance (LIOWAD). Al final del trabajo, se presenta un ejemplo ilustrativo de la aplicación de los operadores de agregación LOWA, ILOWA, LOWAD y LIOWAD en procesos de planificación financiera para la jubilación. Los resultados demuestran la utilidad de esta clase de operadores de agregación lingüísticos en la toma de decisiones para la jubilación
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