5/8/2025

 5/8/2025

Today's work progressed relatively smoothly, primarily focusing on tuning and optimizing the XGBoost model. The focus was on fine-tuning model parameters and re-examining input features, particularly after incorporating external variables like holidays, starting prices, and seasonality to observe how the model responds to sales trends.

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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

 22/5/2025 Continue to modify the analysis content based on the feedback from Supply Chain Executive, including optimizing the data display format, supplementing missing data fields, and reorganizing the analysis logic. While completing the modifications, also start preparing for the report to be given tomorrow and organize the required forecast model results.
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