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Statistical Software An introduction to Statistics Using R Instructed by Jinzhu Jia.

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Presentation on theme: "Statistical Software An introduction to Statistics Using R Instructed by Jinzhu Jia."— Presentation transcript:

1 Statistical Software An introduction to Statistics Using R Instructed by Jinzhu Jia

2 Chap 13. 机器学习 参考文献: 基本内容 K-NN Naïve Bayes Decision Trees

3 K-NN

4 Example

5 K = ?

6 Data transformation

7 R packages for KNN Package: class

8 Naïve Bayes

9 Example

10 Laplace estimator

11 Text mining with Naïve Bayes Spam SMS detection See R code R package for naïve bayes: e1071

12 Decision Trees

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15 Choosing the best split

16 R-Package Package: C50

17 Forecasting Numeric Data Regression Ridge Regression Lasso CART Model Tree SVM Neuron Networks

18 SVM

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22 Neuron Networks

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25 Evaluating Model Performances Cross-validation

26 Specialized machine learning topics Web data XML

27 期末大论文 1. 选择一个合适的实际问题 2. 针对实际问题,寻找合适的方法 3. 使用 R 变成解决该实际问题。 4. 写一个报告。 报告要求是论文格式。可以参考 journal of American Statistical Association. 时间:毕业班 —6 月 15 日;其余 —6 月 25 日


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