public static KerasSymbol Logcosh(KerasSymbol y_true, KerasSymbol y_pred)
{
var x = y_pred - y_true;
var _logcosh = x + K.Softplus(-2 * x) - (float)Math.Log(2);
return(K.Mean(_logcosh, axis: -1));
}
public static KerasSymbol Softplus(KerasSymbol x)
{
return(K.Softplus(x));
}