التفاصيل البيبلوغرافية
| العنوان: |
Prediction of House Price Index Based on Bagging Integrated WOA-SVR Model. |
| المؤلفون: |
Wang, Xiang1 (AUTHOR), Gao, Shen2 (AUTHOR), Zhou, Shiyu3 (AUTHOR), Guo, Yibin1 (AUTHOR), Duan, Yonghui2 (AUTHOR), Wu, Daqing4 (AUTHOR) |
| المصدر: |
Mathematical Problems in Engineering. 10/29/2021, p1-15. 15p. |
| مصطلحات موضوعية: |
*HOME prices, *PRICE indexes, *KERNEL functions, *MACHINE learning, *ALGORITHMS |
| مصطلحات جغرافية: |
SHANGHAI (China), TIANJIN (China), CHONGQING (China) |
| مستخلص: |
Aiming at the shortcomings of a single machine learning model with low model prediction accuracy and insufficient generalization ability in house price index prediction, a whale algorithm optimized support vector regression model based on bagging ensemble learning method is proposed. Firstly, gray correlation analysis is used to obtain the main influencing factors of house prices, and the segmentation forecasting method is used to divide the data set and forecast the house prices in the coming year using the data of the past ten years. Secondly, the whale optimization algorithm is used to find the optimal parameters of the penalty factor and kernel function in the SVR model, and then, the WOA-SVR model is established. Finally, in order to further improve the model generalization capability, a bagging integration strategy is used to further integrate and optimize the WOA-SVR model. The experiments are conducted to forecast the house price indices of four regions, Beijing, Shanghai, Tianjin, and Chongqing, respectively, and the results show that the prediction accuracy of the proposed integrated model is better than the comparison model in all cases. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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