Improve Fuzzy Inventory Model of Fractal Interpolation with Vertical Scaling Factor

Eka Susanti, Fitri Maya Puspita, Siti Suzlin Supadi, Evi Yuliza, Ahmad Farhan Ramadhan

Abstract

The inventory model is used to determine the optimal inventory of a product. In certain cases, parameters in the inventory model are uncertain. Fractal interpolation techniques can be used to overcome parameter with uncertainty. Fractal interpolation results are affected by the fractal interpolation function and the vertical scaling factor. The vertical scaling factor is positive and less than 1. In this study, fractal interpolation techniques are introduced with variations in vertical scaling factor to overcome the uncertainty of demand data in inventory models. Furthermore, the interpolation results are used in fuzzy inventory models and expressed by Trapezoidal Fuzzy Number. This paper considers an inventory model with varying demand to optimize rice inventory. Based on the data obtained, the accuracy level will increase for the vertical scaling factor values close to 1. Optimal rice inventory of each successive fuzzy parameter is 1447963, 1013914, 504950, 215312. If the cost parameter is increased, then the amount of inventory is decreases.

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Authors

Eka Susanti
Fitri Maya Puspita
fitrimayapuspita@unsri.ac.id (Primary Contact)
Siti Suzlin Supadi
Evi Yuliza
Ahmad Farhan Ramadhan
Eka Susanti, Fitri Maya Puspita, Siti Suzlin Supadi, Evi Yuliza, & Ahmad Farhan Ramadhan. (2023). Improve Fuzzy Inventory Model of Fractal Interpolation with Vertical Scaling Factor. Science and Technology Indonesia, 8(4), 654–659. https://doi.org/10.26554/sti.2023.8.4.654-659

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