APPLICATION OF THE FUZZY MAMDANI TO PREDICT THE AMOUNT OF MARBLE PRODUCTION AT PT WUTAMA TRI MAKMUR, SOUTH SULAWESI PROVINCE = APPLICATION OF THE FUZZY MAMDANI TO PREDICT THE AMOUNT OF MARBLE PRODUCTION AT PT WUTAMA TRI MAKMUR, SOUTH SULAWESI PROVINCE

Marble can be used in homes for furniture, building components such as floors, tables, bathrooms, windows. Apart from that, marble can also be used as raw material for making trophies, statues, inscriptions, name plates, vandels, etc. Based on marble mining data by PT. Wutama Tri Makmur from 2015 - 2021 experienced excess production, causing the stockpile to be full and unable to accommodate any more marble. Using this research, marble production can be predicted for more efficient mining so as not to exceed stockpile capacity. This research applies the Fuzzy Mamdani method which is calculated using the Python programming language. application of the Mamdani fuzzy method to predict the amount of marble production through several stages, namely fuzzification, implication, rule composition and defuzzification. After several results have been predicted, the accuracy of the application of the fuzzy Mamdani method is then calculated to determine the percentage of error in the calculation of the fuzzy Mamdani method using MAPE. Based on the MAPE results, the calculation error using the fuzzy mamdani method is 11.1% and the calculation accuracy of the fuzzy mamdani method is 88.9%.

Keyword : Supply, Demand, Production, Fuzzy Mamdani, Python, MAPE.