Charonmomo的博客

K-Means基本步骤KMeans算法本身思想比较简单，但是合理的确定K值和K个初始类簇中心点对于聚类效果的好坏有很大的影响。缺点:K的选择需要事先预定。K个初始质心的位置选择对聚类结果和运行时间都有很大影响。不能保证全局最优，可能是局部最优解。来源: https://zhuanlan.zhihu.com/p/149441104k-means优化基于欧几里得距离，K-Means算法需要优化的问题就是，使得簇内误差平方和(within-cluster sum of squared e

TP/FP/FN/TNTrue positive: having the condition and tested positive with theconditionFalse positive: not having the condition but tested positive withthe conditionTrue negative: not having the condition and tested negative withthe conditionFa

前提1.python环境及tensorflow安装成功2.Anaconda安装好 ，Anaconda安装步骤安装步骤1.下载facenet，https://github.com/davidsandberg/facenet.git2.下载好后解压安装包。3.在自己电脑对应的Anaconda3\Lib\site-packages目录下，新建facenet文件夹4.将下载的fa...

问题：安装tensorflow时提示：tensorboard 1.14.0 has requirement setuptools>=41.0.0, but you’ll have setuptools 39.0.1 which is incompatible.产生原因：setuptools 版本太低解决方法：更新setuptools版本 输入pip install --upg...

pip安装打开命令框，输入pip3 install tensorflow或更新tensorflow：pip3 install --upgrade tensorflow这里有两个提示：tensorboard 1.14.0 has requirement setuptools>=41.0.0, but you’ll have setuptools 39.0.1 which ...

1.在pycharm中运行生成图的代码import tensorflow as tfimport numpy as np## prepare the original datawith tf.name_scope('data'): x_data = np.random.rand(100).astype(np.float32) y_data = 0.3*x_data+0...