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A New Ranking Principle For Ordering Trapezoidal Intuitionistic Fuzzy Numbers

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  • Lakshmana Gomathi Nayagam Velu
  • Jeevaraj Selvaraj
  • Dhanasekaran Ponnialagan

Abstract

Modelling real life (industrial) problems using intuitionistic fuzzy numbers is inevitable in the present scenario due to their efficiency in solving problems and their accuracy in the results. Particularly, trapezoidal intuitionistic fuzzy numbers (TrIFNs) are widely used in describing impreciseness and incompleteness of a data. Any intuitionistic fuzzy decision-making problem requires the ranking procedure for intuitionistic fuzzy numbers. Ranking trapezoidal intuitionistic fuzzy numbers play an important role in problems involving incomplete and uncertain information. The available intuitionistic fuzzy decision-making methods cannot perform well in all types of problems, due to the partial ordering on the set of intuitionistic fuzzy numbers. In this paper, a new total ordering on the class of TrIFNs using eight different score functions, namely, imprecise score, nonvague score, incomplete score, accuracy score, spread score, nonaccuracy score, left area score, and right area score, is achieved and our proposed method is validated using illustrative examples. Significance of our proposed method with familiar existing methods is discussed.

Suggested Citation

  • Lakshmana Gomathi Nayagam Velu & Jeevaraj Selvaraj & Dhanasekaran Ponnialagan, 2017. "A New Ranking Principle For Ordering Trapezoidal Intuitionistic Fuzzy Numbers," Complexity, Hindawi, vol. 2017, pages 1-24, February.
    • Handle: RePEc:hin:complx:3049041
    DOI: 10.1155/2017/3049041
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