A Comparative Study on the Forecast of Tourist Numbers in Huanggang City Based on Linear Regression Model and Grey GM (1,1) Model

This paper takes the number of tourists received by Huanggang City from 2016 to 2021 as the original data, and uses linear regression model and grey GM (1,1) model to forecast the number of tourists in Huanggang. Through the test of the model and the comparative analysis of the prediction results, it is found that the grey GM (1,1) model has a better fitting degree for the number of tourists in Huanggang City than the linear regression model. Finally, the grey GM (1,1) model is used to predict the number of tourists in Huanggang City from 2022 to 2025, providing decision-making basis for relevant departments of Huanggang City and reference for the development planning of the tourism industry.