Electroencephalogram signal classification method, keyboard control method, electronic equipment and medium

The embodiment of the invention provides an electroencephalogram signal classification method, a keyboard control method, electronic equipment and a medium, and relates to the technical field of feature classification, the method comprises the following steps: obtaining an electroencephalogram signal data set which is obtained by collecting electroencephalogram signals of a user in real time; performing feature extraction on the electroencephalogram data set by adopting a first feature extraction strategy to obtain time domain and space domain fusion features; performing feature extraction on the electroencephalogram data set by adopting a second feature extraction strategy to obtain frequency domain and space domain fusion features; the time domain and space domain fusion features and the frequency domain and space domain fusion features are spliced according to a preset dimension, spliced features are obtained, and the spliced features comprise time domain features, frequency domain features and space domai