Forecast Rossmann Store Sales Base on Xgboost Model

Rossmann is a large supermarket chain. This project studies the sales situation of 1115 stores of Rossmann company in recent three years, carries out feature engineering from the dimension of space and time, uses xgboost gradient promotion algorithm to build a prediction model, and forecasts the sales volume of Rossmann's 1115 stores in the next 48 days. In the kaggle competition, the accuracy of the model to predict the future sales of 41088 samples reached 89.07%.