Fuzzy Seasonal Demand and Fuzzy Total Demand Production Quantities Based on Interval-valued Fuzzy Sets
نویسندگان
چکیده
Both seasonal demand r and total demand R in the production inventory model are difficult to estimate precisely to actual r0 and R0 values, respectively. Hence, we will set the membership grade at r0 and R0 in an interval [λ, 1], 0 < λ < 1, and then, obtain the interval-valued fuzzy sets r̃ and R̃, respectively. For each production quantity period q, we can obtain the fuzzy total cost Gq ( r̃, R̃ ) and determine the defuzzification of Gq ( r̃, R̃ ) as the estimate of the total cost. This paper presents production inventory model uncertain problems that would be helpful in the real world.
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