Feature gene selecting and cancer classifying method
A technology of characteristic genes and classification methods, applied in the field of biomedical data analysis, can solve the problem of not taking into account the interaction network between genes and genes, and achieve the effect of improving accuracy
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[0070] As a kind of specific implementation manner of the embodiment of the present invention, described setting up the solving model of SCAD-Net, wherein the expression of the solving model of described SCAD-Net is:
[0071]
[0072] in,
[0073] Assuming that gene i and gene k are connected in the biological regulatory network, then w ik =1 or a real number from 0 to 1, on the contrary if there is no connection then w ik = 0; d i and d k is the degree of gene i and gene k in the biological regulatory network (in-degree + out-degree); λ 1 and lambda 2 are hyperparameters for adjusting model sparsity and model smoothness, respectively. α is a constant greater than 2.7.
[0074] In the embodiment of the present invention, the selection of hyperparameters is performed by cross-validation method.
[0075] As a specific implementation manner of the embodiments of the present invention, the SNL model is obtained by combining the solution model of the loss function and t...
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