Research Journal of Recent Sciences, 1(2), 19вЂ“27 Association rule miningвЂ“ extracting knowledge using market basket analysis. JEJAK Journal of Economics and Policy, 7(2), 109вЂ“120. Pengaruh modal sosial terhadap kemiskinan rumah tangga. Dampak Perubahan Iklim Terhadap Perubahan Musim Tanam Padi ( Oryza sativa L. Peramalan jumlah penumpang kereta api medan-rantau prapat dengan metode pemulusan eksponensial Holt-Winters.

Padang, E., Tarigan, G., & Sinulingga, U., 2013.

Predictive Analytics and Data Mining - Chapter3: Data Exploration. Application of Apriori Algorithms to Determine Associations in Outdoor Sports Equipment Stores. Rapid Miner Data Mining Use Cases and Business Analytics Applications. Journal of Mathematical and Fundamental Sciences, 49(2), 127вЂ“135. New estimation rules for unknown parameters on holt-winters multiplicative method. Data mining: Data mining concepts and techniques. Using holt winter вЂ™ s multiplicative model to forecast assisted childbirths at the teaching hospital in Ashanti Region, Ghana.

Direktorat Jenderal Prasarana & Sarana Pertanian, D.

Engineering and Applied Science Research, 45(1), 32вЂ“38.

Double exponential smoothing and Holt-Winters methods with optimal initial values and weighting factors for forecasting lime, Thai chili and lemongrass prices in Thailand. International Journal of Engineering and Techniques, 4(1), 186вЂ“192. Data mining systems to determine sales trends and quantity forecast using association rule miningand CRISP-DM Method. Alfiah, F., Pandhito, B.W., Sunarni, A.T., Muharam, D., & Matusin, P.R., 2018.Note: This article has supplementary file(s). This thing will effect on repression of operational cost and PT ABC can identify available opportunities to increase sale of agricultural medicine. Result of data test, by considering rule that formed and forecast result so the company can control and manage product in order to avoid incorrect sales.

Based on value of error rate Mean Absolute Percentage Error (MAPE) in estimating forecast result on the PT ABCвЂ™s sales transaction data during 3 years, it shows good level of accuracy.

Besides that, this research produces changing trend data of PT ABCвЂ™s product that generated by result of previous data comparison with forecast data. The pattern used by company to know which product is often purchased by customer. After passed through data processing process by using RapidMiner tools, information that consists of correlation pattern between rule that describe the comparison of product and the sales working area and season that affects the product sale. This research combined Association Rules method to extracting pattern and finding every possibility that potential to increase sales and Holt-Winter Multiplicative method to estimate the alteration of trend on the seasonal data. One of the efforts that can be done is by utilizing data warehouse and the application of infrastructure in information and technology field. The competition level between companies on executing product marketing is rapidly increasing, so the companies have to understand the importance of correlation between external environments of company with consumerвЂ™s needs. This research to optimally control the raw material for the success ofВ customer service in a cafe.BibTex Citation Data : = , Research also yields a percentage value of forecasting to the actual data to determine the accuracy ofВ forecasting of raw material at the cafe. ByВ comparing the measurement error is the smallest value of MAPE and MSE, then the system will generateВ forecasting information that is used to determine the optimum amount of raw materials ordering one nextВ period. Winters Exponential Smoothing method forВ forecasting data characteristics tend to be stationary and have a seasonal pattern at a time trend.В This information system to produce forecasts to predict a certain product sales in future periods. Unused raw materials must be removed for exceeding the period expires, whereasВ raw material shortages caused cafe canвЂ™t fill all customer orders.В Application of Exponential Smoothing method Winter in the inventory control information systemВ products and raw materials aim to resolve these problems. This problem resulted in a surplus orВ shortage of raw materials. Effect of fluctuations in food and beverage sales that is not uniform in a cafe can be a problemВ determining the raw material and raw material purchase to the supplier.

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