Python : 다층 신경망

import numpy as np import matplotlib.pyplot as plt from sklearn.datasets import load_breast_cancer from sklearn.model_selection import train_test_split cancer = load_breast_cancer() x = cancer.data y = cancer.target x_train_all, x_test, y_train_all, y_test = train_test_split(x, y, stratify=y, test_size=0.2, random_state=42) x_train, x_val, y_train, y_val = train_test_split(x_train_all, y_train_all, stratify=y_train_all, test_size=0.2, random_state=42) class SingleLayer: def __init__(self, learni...