Simulation of big data mixed attribute feature detection for power system intelligent operation and maintenance based on improved random forest algorithm
Affiliations:
State Grid Liaoning Marketing Service Center, Liaoning, Shenyang, China
Correspondence:
[*]
Corresponding author. Ze Li, State Grid Liaoning Marketing Service Center, Liaoning, Shenyang, 110164, China. E-mail: zejiu279131@163.com.
Abstract: The diversity of attribute categories brings certain difficulties to data feature detection. In order to improve the accuracy and efficiency of feature detection, a hybrid attribute feature detection method for power system intelligent operation and maintenance big data based on improved random forest algorithm is proposed. Clustering processing power system intelligent operation and maintenance big data, based on data clustering results to reduce the characteristics of data mixed attributes, reduce the scale of data processing, and discretize the data mixed attributes; BP neural network is used to preprocess the results. Make corrections to improve the accuracy of feature detection, use the improved random forest algorithm to classify the data, and improve the convergence speed of the method. Finally, the support vector machine method is used to realize the feature detection of data mixed attributes. The experimental results show that the feature detection accuracy and efficiency of the method designed in this paper are high, and more features can be detected, which verifies its effectiveness. The method designed in this paper has the minimum RMSE value and the maximum value is only 0.12, which is far lower than the RMSE value of the improved spectral clustering algorithm and multi-domain feature extraction method, and has high detection accuracy.
Keywords: Improved random forest algorithm, power system, operation and maintenance big data, mixed attributes, BP neural network, support vector machine
