23/7/2025

 23/7/2025

In terms of the forecast model, today I further added the lag feature (lagging sales). The experimental results show that the forecast line is closer to the actual sales, especially for non-holiday sales. However, an important problem was also found: the effect of the lag feature will mask the impact of external factors such as holidays. For example, even if there are promotions on the eve of certain holidays, the model will refer to the previous "non-holiday" sales value, resulting in insufficient prediction of the peak period.

At 10:30 this morning, the Prime Minister made an important statement. At the request of the manager, an impact analysis was conducted on the news and presented to him in the afternoon.

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