29/8/2025

 29/8/2025

Today, I focused on putting together a PowerPoint presentation summarizing all the models and data processing methods I used earlier, including Holt-Winters, Decomposition, ARIMA/SARIMA, XGBoost, and the Python/Excel data filtering techniques I learned during my internship. The slides are clearly structured and will be easy to share with my manager and team later.

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10/6/2025

 10/6/2025 Today, i successfully completed the construction of the SARIMA model and began to apply it to the prediction of actual sales data. After model training, i generated sales forecasts for the next few days and compared them with the actual data to evaluate the accuracy of the model.
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22/5/2025

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