MAILLIBIN的专栏

python word2vec极简示例

import numpy as npimport matplotlib.pyplot as plt#此示例神经网络的样本输入输出分别是二进制和十进制0-8#输入样本X=np.array([ [0,0,0], [0,0,1], [0,1,0], [0,1,1], [1,0,0], [1,0,1], [1,1,0], ...

import numpy as npimport matplotlib.pyplot as plt#此示例神经网络的样本输入输出分别是二进制和十进制0-8#输入样本X=np.array([ [0,0,0], [0,0,1], [0,1,0], [0,1,1], [1,0,0], [1,0,1], [1,1,0], [1,...

\documentclass[UTF8,a4paper]{article}\usepackage{ctex,fontspec,geometry,color,setspace}\geometry{left=1cm,right=1cm,top=1cm,bottom=1cm}\setmainfont[Mapping=tex-text]{宋体}\begin{document} \begin...

附：sigmoid神经网络核心代码import numpyclass neuralNetwork : def __init__(self, inputnodes, hiddennodes, outputnodes,learningrate) : self.inodes = input...

import matplotlib.pyplot as pltimport dlibimport numpy as npimport globimport re#正脸检测器detector=dlib.get_frontal_face_detector()#脸部关键形态检测器sp=dlib.shape_predictor(r"D:\LB\JAVASCRIPT\shape_pred...

安装opencv然后安装darknetgit clone https://github.com/pjreddie/darknet.gitcd darknetmake然后下载已经训练好的模型权重值wget http://pjreddie.com/media/files/yolov1.weights进入darknet路径，执行命令./darknet yolo test...

import cv2import numpy as npimport matplotlib.pyplot as pltface_cascade =cv2.CascadeClassifier(r"D:\anaconda\Lib\site-packages\cv2\data\haarcascade_frontalface_default.xml")eye_cascade =cv2.Casc...

以下代码通过使用ReLU作为激活函数构建反向传播神经网络实现了XOR# -*- coding: utf-8 -*-import numpy as npimport matplotlib.pyplot as plt# N is batch size(sample size); D_in is input dimension;# H is hidden dimension; D_out...

import numpy as npimport matplotlib.pyplot as plt#选定随机数种子 使实验效果可复现np.random.seed(1)#非线性方程 用作激活函数def relu(X,derive=False): if not derive: return np.maximum(0,X) return (X&...