AI-Ziping Chen

一、机器学习概念 “A computer program is said to learn from experience E with respect to some class of tasks T and performance measure P, if its performance at tasks in T, as measured by P, improves with expe

用TensorFlow搭建一个全连接神经网络说明 本例子利用TensorFlow搭建一个全连接神经网络，实现对MNIST手写数字的识别。 先上代码from tensorflow.examples.tutorials.mnist import input_data import tensorflow as tf# prepare data mnist = input_data.read_data_se

PCA+SVM人脸识别 PCA介绍 主成分分析(Principal Component Analysis, 简称PCA)是常用的一种降维方法. 算法步骤: 输入: 样本集 D={x1,x2,...,xm}D={x1,x2,...,xm}D=\{x_1, x_2, ..., x_m\}, 低维空间维数 d′d′d' 过程: 对所有样本进行中心化: xi←xi−1m∑mi=1xix...