第一节视频的主要内容: Fei-Fei Li 女神对Computer Vision的整体介绍.包括了发展历史中的重要事件,其中最为重要的是1959年测试猫视觉神经的实验. In 1959 Harvard neurophysiologists David H. HubelOffsite Link and Torsten WieselOffsite Link, inserted a microelectrodeOffsite Link into the primary visual cortexOf…
作业内容,完成作业便可熟悉如下内容: cell 1 设置绘图默认参数 # Run some setup code for this notebook. import random import numpy as np from cs231n.data_utils import load_CIFAR10 import matplotlib.pyplot as plt # This is a bit of magic to make matplotlib figures appear inline…
BN层在实际中应用广泛. 上一次总结了使得训练变得简单的方法,比如SGD+momentum RMSProp Adam,BN是另外的方法. cell 1 依旧是初始化设置 cell 2 读取cifar-10数据 cell 3 BN的前传 # Check the training-time forward pass by checking means and variances # of features both before and after batch normalization # Sim…
要求:实现任意层数的NN. 每一层结构包含: 1.前向传播和反向传播函数:2.每一层计算的相关数值 cell 1 依旧是显示的初始设置 # As usual, a bit of setup import time import numpy as np import matplotlib.pyplot as plt from cs231n.classifiers.fc_net import * from cs231n.data_utils import get_CIFAR10_data from…
cell 1 显示设置初始化 # A bit of setup import numpy as np import matplotlib.pyplot as plt from cs231n.classifiers.neural_net import TwoLayerNet %matplotlib inline plt.rcParams['figure.figsize'] = (10.0, 8.0) # set default size of plots plt.rcParams['image.i…