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Title: GitHub - PannyVan/MachineLearning_Python: 机器学习算法python实现

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Description: 机器学习算法python实现. Contribute to PannyVan/MachineLearning_Python development by creating an account on GitHub.

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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#机器学习算法python实现
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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#一线性回归
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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#5使用scikit-learn库中的线性模型实现
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全部代码	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/LogisticRegression/LogisticRegression.py
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#1代价函数-1
	https://camo.githubusercontent.com/3ba25d174662bc6f4f490e41436b42a6ff383430b3267ce0d5cc1905e6c86bac/687474703a2f2f6c617465782e636f6465636f67732e636f6d2f6769662e6c617465783f2535436c617267652532302535436c656674253543253742253230253543626567696e25374267617468657265642537442532304a253238253543746865746125323025323925323025334425323025354366726163253742312537442537426d25374425354373756d2535436c696d6974735f25374269253230253344253230312537442535456d253230253742253543636f7325323074253238253742685f2535437468657461253230253744253238253742782535452537422532386925323925374425374425323925324325374279253545253742253238692532392537442537442532392537442532302535436866696c6c253230253543253543253230253543636f7325323074253238253742685f253543746865746125323025374425323878253239253243792532392532302533442532302535436c656674253543253742253230253742253543626567696e2537426172726179253744253742632537442532302537422532302d2532302535436c6f67253230253238253742685f2535437468657461253230253744253238782532392532392537442532302535432535432532302537422532302d2532302535436c6f67253230253238312532302d253230253742685f253543746865746125323025374425323878253239253239253744253230253543656e642537426172726179253744253230253543626567696e25374261727261792537442537426325374425323025374279253230253344253230312537442532302535432535432532302537427925323025334425323030253744253230253543656e64253742617272617925374425323025374425323025354372696768742e2532302535436866696c6c253230253543253543253230253543656e64253742676174686572656425374425323025354372696768742e
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	https://camo.githubusercontent.com/2ce4f65e4f7a92390367fe2783a322cfe14cc4ae4617ed4ffd58d5647e071594/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d253742685f253543746865746125323025374425323878253239253230253344253230253543667261632537423125374425374225374231253230253242253230253742652535452537422532302d25323078253744253744253744253744
	https://camo.githubusercontent.com/17d4d18b2575cfc08f228c765aa6a0e5b39f79ee34a3df1c5cc58e13a7d15bf5/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d2537422532302d2532302535436c6f67253230253238253742685f253543746865746125323025374425323878253239253239253744
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_01.png
	https://camo.githubusercontent.com/553e837c6635683f520d7e824445d1daae62ad56e3cf8a832253d92a0522fba7/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d253742253742685f253543746865746125323025374425323878253239253744
	https://camo.githubusercontent.com/553e837c6635683f520d7e824445d1daae62ad56e3cf8a832253d92a0522fba7/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d253742253742685f253543746865746125323025374425323878253239253744
	https://camo.githubusercontent.com/c537da7aea9f66b31a8c479ffa964f051cd683b4115716d84937037a41e76540/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d2537422532302d2532302535436c6f67253230253238312532302d253230253742685f253543746865746125323025374425323878253239253239253744
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_02.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#2梯度
	https://camo.githubusercontent.com/b4c704104dbc22b23f487f159ef20f29a99de6214668e0f428609a7901a4af9c/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d253543667261632537422537422535437061727469616c2532304a25323825354374686574612532302532392537442537442537422537422535437061727469616c25323025374225354374686574612532305f6a25374425374425374425323025334425323025354366726163253742312537442537426d25374425354373756d2535436c696d6974735f25374269253230253344253230312537442535456d253230253742253542253238253742685f253543746865746125323025374425323825374278253545253742253238692532392537442537442532392532302d2532302537427925354525374225323869253239253744253744253239785f6a25354525374225323869253239253744253544253744253230
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_03.jpg
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#3正则化
	https://camo.githubusercontent.com/b8584d987717f64f58a44a61e437e0af63a13c6a3bc7511d7b56b9f118b0b938/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d4a25323825354374686574612532302532392532302533442532302532302d25323025354366726163253742312537442537426d25374425354373756d2535436c696d6974735f25374269253230253344253230312537442535456d25323025374225354225374279253545253742253238692532392537442537442535436c6f67253230253238253742685f25354374686574612532302537442532382537427825354525374225323869253239253744253744253239253230253242253230253238312532302d25323025374425323025374279253545253742253238692532392537442537442532392535436c6f67253230253238312532302d253230253742685f25354374686574612532302537442532382537427825354525374225323869253239253744253744253239253544253230253242253230253543667261632537422535436c616d626461253230253744253742253742326d25374425374425354373756d2535436c696d6974735f2537426a253230253344253230312537442535456e25323025374225354374686574612532305f6a25354532253744253230
	https://camo.githubusercontent.com/553e837c6635683f520d7e824445d1daae62ad56e3cf8a832253d92a0522fba7/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d253742253742685f253543746865746125323025374425323878253239253744
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#4s型函数即
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#5映射为多项式
	https://camo.githubusercontent.com/c13817ab54a19a19c1d5ab73af10fd7e059ddf150f07af5d90bd8c6f66bfb656/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d31253230253242253230253742785f31253744253230253242253230253742785f32253744253230253242253230785f3125354532253230253242253230253742785f31253744253742785f32253744253230253242253230785f3225354532
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#6使用scipy的优化方法
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#7运行结果
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_04.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_05.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_06.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_07.png
使用scikit-learn库中的逻辑回归模型实现	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/LogisticRegression/LogisticRegression_scikit-learn.py
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#8使用scikit-learn库中的逻辑回归模型实现
逻辑回归_手写数字识别_OneVsAll	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/LogisticRegression
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#逻辑回归_手写数字识别_onevsall
全部代码	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/LogisticRegression/LogisticRegression_OneVsAll.py
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#1随机显示100个数字
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_08.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_09.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#2onevsall
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_11.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#3手写数字识别
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_10.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#4预测
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#5运行结果
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_12.png
使用scikit-learn库中的逻辑回归模型实现	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/LogisticRegression/LogisticRegression_OneVsAll_scikit-learn.py
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#6使用scikit-learn库中的逻辑回归模型实现
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/LogisticRegression_13.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#三bp神经网络
全部代码	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/NeuralNetwok/NeuralNetwork.py
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#1神经网络model
	https://camo.githubusercontent.com/1aed011979975984fe5b92a7a229020181009df9a9c1bed06eefd00fe5b81254/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d253742785f30253744
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	https://camo.githubusercontent.com/a473a5ff8491bf78c70b4d5cc85f1f830ddabe9bd2941660ef2af968f094fb56/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d25374225354374686574612532302535452537422532386a253239253744253744
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/NeuralNetwork_01.png
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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#2代价函数
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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#3正则化-1
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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#4反向传播bp
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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#5bp可以求梯度的原因
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/NeuralNetwork_03.jpg
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/NeuralNetwork_04.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#6梯度检查
	https://camo.githubusercontent.com/dd93629946f8969ee1398fe71b925e5a6e2ebdc38ea6542baf07e2f3b150f8e6/687474703a2f2f63686172742e617069732e676f6f676c652e636f6d2f63686172743f6368743d7478266368733d317830266368663d62672c732c4646464646463030266368636f3d3030303030302663686c3d25354366726163253742253742644a2532382535437468657461253230253239253744253744253742253742642535437468657461253230253744253744253230253543617070726f78253230253543667261632537422537424a2532382535437468657461253230253230253242253230253543766172657073696c6f6e2532302532392532302d2532304a25323825354374686574612532302532302d253230253543766172657073696c6f6e25323025323925374425374425374225374232253543766172657073696c6f6e253230253744253744
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#7权重的随机初始化
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#8预测
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#9输出结果
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/NeuralNetwork_05.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/NeuralNetwork_06.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/NeuralNetwork_07.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/NeuralNetwork_08.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/NeuralNetwork_09.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#四svm支持向量机
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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#4使用scikit-learn中的svm模型代码
全部代码	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/SVM/SVM_scikit-learn.py
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#5运行结果-1
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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/SVM_10.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#五k-means聚类算法
全部代码	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/K-Means/K-Menas.py
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#1聚类过程
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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/K-Means_03.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#2目标函数
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	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#3聚类中心的选择
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#4聚类个数k的选择
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/K-Means_04.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#5应用图片压缩
使用scikit-learn库中的线性模型实现聚类	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/K-Means/K-Means_scikit-learn.py
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#6使用scikit-learn库中的线性模型实现聚类
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#7运行结果-1
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/K-Means_05.png
	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python/blob/master/images/K-Means_06.png
Readme	https://patch-diff.githubusercontent.com/PannyVan/MachineLearning_Python#readme-ov-file
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