【机器学习】详解机器学习最优化算法!
机器学习初学者
共 16227字,需浏览 33分钟
· 2023-10-16
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公式求解
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数值优化
能正确的找到各种情况下的极值点
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速度快
![](https://filescdn.proginn.com/bd54a19b5a0367201c2a970794222a4c/5241289cdb581e35dc4f38f2e7a47808.webp)
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如果f''(x)>0,则在该点处去极小值
如果f''(x)<0,则在该点处去极大值
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如果f''(x)>=0,还要看更高阶导数
如果Hessian矩阵正定,函数在该点有极小值
如果Hessian矩阵负定,函数在该点有极大值
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如果Hessian矩阵不定,还需要看更(此处误)
![](https://filescdn.proginn.com/2aa5b6b07eb41b270a5a5b27154a15b1/2272d4198991d59171175708cd168b39.webp)
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主成分分析
线性判别分析
流形学习中的拉普拉斯特征映射
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隐马尔可夫模型
![](https://filescdn.proginn.com/d2bdef20cb807af09d4939917b7039da/1381911e1cc76c60ab37806ffab1b6b6.webp)
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![](https://filescdn.proginn.com/bea719639cbc7e079e7272428a572500/9a38023eaac858c77bd95b7811008b5d.webp)
支持向量机(SVM)
![](https://filescdn.proginn.com/be330d269d2e1b872a247c02e5f9a361/de77eb3a229ed43c7d969ab788161969.webp)
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