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Merge pull request apachecn#267 from jiangzhonglian/master
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 修改错别字
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jiangzhonglian authored May 15, 2019
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## 开发流程

分类问题:0~9 数字
常用算法:knn、决策树、朴素贝叶斯、Logistic回归、SVM、集成方法(随机森林和 AdaBoost)
* 分类问题:0~9 数字
* 常用算法:knn、决策树、朴素贝叶斯、Logistic回归、SVM、集成方法(随机森林和 AdaBoost)

```
步骤:
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此处不做过多分析,主要是优化各个算法的参数。
* KNN => k值
* SVM => 惩罚系数,内核
* RF => 树的个数,树的深度,最少的叶子数
* SVM => 惩罚系数,核函数
* RF => 树个数,树深度,叶子数
* PCA => 特征数 or 信息熵
```

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此处不做过多分析,主要是优化各个算法的参数。

* [KNN](https://github.com/apachecn/AiLearning/blob/master/docs/ml/2.k-近邻算法.md) => k值
* [SVM](https://github.com/apachecn/AiLearning/blob/master/docs/ml/6.支持向量机.md) => 惩罚系数,内核
* [RF](https://github.com/apachecn/AiLearning/blob/master/docs/ml/7.集成方法-随机森林和AdaBoost.md) => 数的个数,数的深度,最少的叶子数
* [SVM](https://github.com/apachecn/AiLearning/blob/master/docs/ml/6.支持向量机.md) => 惩罚系数,核函数
* [RF](https://github.com/apachecn/AiLearning/blob/master/docs/ml/7.集成方法-随机森林和AdaBoost.md) => 树个数,树深度,叶子数
* [PCA](https://github.com/apachecn/AiLearning/blob/master/docs/ml/13.利用PCA来简化数据.md) => 特征数 or 信息熵

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