Rasoul Saneifard - Department of Engineering Technology‎, ‎Texas Southern University‎, ‎Houston‎, ‎Texas‎, ‎USA‎.
Rahim Saneifard - Department of Applied Mathematics‎, ‎Urmia Branch‎, ‎Islamic Azad University‎, ‎Urmia‎, ‎Iran.

‎This paper deals with one problem that needs to be addressed in the emerging field known under the name computing with perceptions‎. ‎It is the problem of describing‎, ‎approximately‎, ‎a given fuzzy set in natural‎ ‎language‎. ‎This problem has lately been referred to as the problem of retranslation‎. ‎An approaches to ‎dealing with the retranslation problem is discussed in the paper‎, ‎that is based on a pre-defined set of ‎linguistic terms and the associated fuzzy sets‎. ‎The retranslation problem is discussed in ‎terms of two criteria validity and informativeness‎.

fuzzy sets, Regular Function, Defuzzification, Informativeness, Validity