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In the real world, many decision-making problems contain uncertain data in the decision process. Although fuzzy set theory can deal with the uncertain problem, the decision maker always cannot express his opinion exactly in the decision-making process. Because the subjective judgments of decision makers are always vagueness, linguistic variables and interval-valued fuzzy sets are suitable used to...
Service industries have played an important role in the world wide economy. The most important issue in service industry is to provide high quality service to make customer satisfaction. There are many quantitative and qualitative factors will influence the service quality of service provider. It is not easy to evaluate the quality of service alternative directly. In this paper, we use 2-tuple linguistic...
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