Before revision:  Thus, (hyper)parameters have physical meaning, whose effects are carefully studied in several different scenarios : for instance, diffusion introduces interaction among features, whereas reaction plays an active role in classification . PSBC's coefficients are trainable weights, chosen according to a minimization problem using Gradient Descent;
After revision:  Hence, parameters and hyperparameters have physical meaning, whose effects are carefully studied in several different scenarios : for instance, diffusion introduces interaction among features, whereas reaction plays an active role in classification . PSBC's coefficients are trainable weights, chosen according to a minimization problem using Gradient Descent;