中文说明：
该算法是在Matlab平台上开发的，用于特征选择和后向选择，其主要目的是提取心电生理信号所表达的特定情感特征，以降低特征维度。
English Description：
Developed on the Matlab platform for feature selection and backward selection, the algorithm is designed to extract specific emotional features expressed by electrophysiological signals to reduce feature dimensions.