Subjective cognitive decline patient identification method and device based on baseline perspective views

The invention discloses a subjective cognitive decline patient identification method and device based on a baseline perspective view. The method comprises the following steps: acquiring a time sequence with the length of N; the time sequence is mapped to a complex network with N nodes through a baseline perspective view algorithm, each time point of the time sequence corresponds to each node on the network, and the connection condition between the nodes is represented by an N * N adjacency matrix; obtaining a degree distribution sequence through the adjacent matrix, and extracting degree distribution characteristics, network average degree and degree distribution entropy; and on the basis of a machine learning algorithm and in combination with feature selection and a cross validation strategy, performing individual identification on the subjective cognitive decline patient. According to the method, the utilization degree of signals below a baseline is improved, a periodic sequence is converted into a regular