Informações sobre o curso: Machine learning is the study that allows computers to adaptively improve their performance with experience accumulated from the data observed. Our two sister courses teach the most fundamental algorithmic, theoretical and practical tools that any user of machine learning needs to know. This second course of the two would focus more on algorithmic tools, and the other course would focus more on mathematical tools. [機器學習旨在讓電腦能由資料中累積的經驗來自我進步。我們的兩項姊妹課程將介紹各領域中的機器學習使用者都應該知道的基礎演算法、理論及實務工具。本課程將較為著重方法類的工具，而另一課程將較為著重數學類的工具。]
Desenvolvido por: Universidade Nacional de Taiwan
Ministrado por: Hsuan-Tien Lin, 林軒田, 教授 (Professor)
資訊工程學系 (Computer Science and Information Engineering)
| Nível | Intermediate |
| Idioma | Chinese (Traditional) |
| Requisitos de hardware | 需要一般個人電腦或同等級的計算資源以撰寫程式執行作業 |
| Como ser aprovado | Seja aprovado em todas as tarefas para concluir o curso. |
| Classificação do usuário |
Programa
SEMANA 1
第九講: Linear Regression
weight vector for linear hypotheses and squared error instantly calculated by analytic solution
4 vídeos, 3 leituras
- Vídeo: Linear Regression Problem
- Vídeo: Linear Regression Algorithm
- Vídeo: Generalization Issue
- Vídeo: Linear Regression for Binary Classification
- Reading: 課程大綱
- Reading: 課程形式及評分標準
- Reading: 延伸閱讀
SEMANA 2
第十講: Logistic Regression
gradient descent on cross-entropy error
to get good logistic hypothesis
4 vídeos
- Vídeo: Logistic Regression Problem
- Vídeo: Logistic Regression Error
- Vídeo: Gradient of Logistic Regression Error
- Vídeo: Gradient Descent
SEMANA 3
第十一講: Linear Models for Classification
binary classification via (logistic) regression; multiclass classification via OVA/OVO decomposition
4 vídeos
- Vídeo: Linear Models for Binary Classification
- Vídeo: Stochastic Gradient Descent
- Vídeo: Multiclass via Logistic Regression
- Vídeo: Multiclass via Binary Classification
SEMANA 4
第十二講: Nonlinear Transformation
nonlinear model via nonlinear feature transform+linear model with price of model complexity
4 vídeos
- Vídeo: Quadratic Hypothesis
- Vídeo: Nonlinear Transform
- Vídeo: Price of Nonlinear Transform
- Vídeo: Structured Hypothesis Sets
Nota atribuída: 作業三
SEMANA 5
第十三講: Hazard of Overfitting
overfitting happens with excessive power, stochastic/deterministic noise and limited data
4 vídeos
- Vídeo: What is Overfitting?
- Vídeo: The Role of Noise and Data Size
- Vídeo: Deterministic Noise
- Vídeo: Dealing with Overfitting
SEMANA 6
第十四講: Regularization
minimize augmented error, where the added regularizer effectively limits model complexity
4 vídeos
- Vídeo: Regularized Hypothesis Set
- Vídeo: Weight Decay Regularization
- Vídeo: Regularization and VC Theory
- Vídeo: General Regularizers
SEMANA 7
第十五講: Validation
(crossly) reserve validation data to simulate testing procedure for model selection
4 vídeos
- Vídeo: Model Selection Problem
- Vídeo: Validation
- Vídeo: Leave-One-Out Cross Validation
- Vídeo: V-Fold Cross Validation
SEMANA 8
第十六講: Three Learning Principles
be aware of model complexity, data goodness and your professionalism
4 vídeos
- Vídeo: Occam's Razor
- Vídeo: Sampling Bias
- Vídeo: Data Snooping
- Vídeo: Power of Three
Nota atribuída: 作業四
Perguntas frequentes
Como funciona
Coursework
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Desenvolvedores
Universidade Nacional de Taiwan
We firmly believe that open access to learning is a powerful socioeconomic equalizer. NTU is especially delighted to join other world-class universities on Coursera and to offer quality university courses to the Chinese-speaking population. We hope to transform the rich rewards of learning from a limited commodity to an experience available to all.More courses information, the official Facebook Page: https://www.facebook.com/ntumooc2017/
Classificações e avaliações
Good!
A perfect course in spite of a little in-digestibility .
深入浅出，讲解细致
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林老師的課不僅聽起來比較清晰易懂，並且深度足夠（比Andrew Ng的課而言深度要大不少），值得多次聽講。作業質量也比較高，能夠有很好的鍛煉效果。期待後續的技法課程能夠在coursera上面公佈。