In this contribution we describe a novel procedure to represent fuzziness in rating scales terms of fuzzy numbers. Following the rationale conversion scale, adopted two-step based on psychometric model (i.e., Item Response Theory-based tree) process answer survey questions. This provides coherent context where numbers, and related fuzziness, can be interpreted decision uncertainty that usually ...

In this paper, we introduce four kinds of rough approximations for a given intuitionistic fuzzy set.

In this paper, we introduced the concepts of roughness and fuzziness in ordered ternary semigroups. We proved that the lower and upper approximation of an ordered ternary subsemigroup (resp. left ideal, right ideal, lateral ideal, bi-ideal, interior ideal) in an ordered ternary semigroup is an ordered ternary subsemigroup (resp. left ideal, right ideal, lateral ideal, bi-ideal, interior ideal)....

in this paper, the concept of canonical representation is proposed to find fuzzy roots of fuzzy polynomial equations. we transform fuzzy polynomial equations to system of crisp polynomial equations, this transformation is perform by using canonical representation based on three parameters value, ambiguity and fuzziness.

Market demand estimation is an important process to assess the financial feasibility of new product development (NPD) projects. The development of models for market demand estimation involves market potential estimation and choice modeling. Previous studies commonly used conjoint analysis to develop utility functions which were then used in discrete choice models to generate market share models...