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Fig. 4. (Color online) Weight matrix of the Logistic regression for (a,c) the real part un (b,d) the imaginary part vn. The weight matrix (a,b) W(1)(ω) on the real frequency domain (c,d) and on the logistic frequency domain. Dotted black line represents simple polynomial fitting curve.
New Phys.: Sae Mulli 2022;72:487~494