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神经网络和Deep Learning
参考资料:
在线免费书籍 http://neuralnetworksanddeeplearning.com/chap1.html
中汉对照术语(按字母顺序)
artificial neutron: perceptron(以前), sigmoid neutron(如今的模型)
bias 偏差 :for example, a measure of how easy it is to get the perceptron to output a 11
bitwise 按位
carry bit 进位
elementary logical functions AND, OR, NAND: 基本逻辑函数 与,或,与非(Not AND)
NAND gate 与非门:是数字电路的一种基本逻辑电路;(输入全1时,输出为0;只要有一个输入为0,输出就为1;计算例子如下图)
neutron 神经元
notational 符号标注
percetron 感知机
stochastic gradient descend 随机梯度下降
Chapter 1
1. perceptron 感知机
it‘s a device that makes decisions by weighing up evidence. Just single output.
(inputs(with weights),compared to threshold, then output 0 or 1.)
其中, ;
threshold could be simplified as bias;
其中 b= - threshold, is called bias.
layers:
神经网络和Deep Learning