machine learning 2020 -...
TRANSCRIPT
![Page 1: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/1.jpg)
Machine Learning 2020
李宏毅
Hung-yi Lee
![Page 2: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/2.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
本學期總共有十五個作業 (每項作業滿分皆為10 分,學期成績以分數最高的前十個作業計算)
![Page 3: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/3.jpg)
機器學習就是自動找函式
• Speech Recognition
• Image Recognition
• Playing Go
• Dialogue System
( )= f
( )= f
( )= f
( )= f
“Cat”
“How are you”
“5-5”
“I am fine.”“How are you?”(what the user said) (system response)
(next move)
![Page 4: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/4.jpg)
你想找什麼樣的函式?
![Page 5: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/5.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
fPM2.5 today
PM2.5 yesterday
…….
PM2.5 tomorrow(scalar)
The output of the function is a scalar.
Regression
![Page 6: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/6.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
fInput Yes or No(sentence) (pos or neg)
Binary Classification
![Page 7: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/7.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
fInput Class 1, Class 2, … Class NMulti-class Classification
麵包 蛋 湯
![Page 8: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/8.jpg)
Regression, Classification
產生有結構的複雜東西(例如:文句、圖片)
Generation (生成)
擬人化的講法—創造
![Page 9: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/9.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
Generation
翻譯:產生文句
產生二次元人物
![Page 10: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/10.jpg)
怎麼告訴機器你想找什麼樣的函式?
![Page 11: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/11.jpg)
Supervised Learning
𝒇 “Cat”
𝑥 𝑦
𝑦1:“Cat” 𝑦2:“Cat”
𝑦3:“Dog” 𝑦4:“Dog”
𝑥1: 𝑥2:
𝑥3: 𝑥4:
Labelled Data
![Page 12: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/12.jpg)
函式的 Loss
𝒇𝟏“Dog”/“Dog”/“Dog”/“Dog”
𝑥1 / 𝑥2 / 𝑥3 / 𝑥4
Loss = 50%
𝑦1:“Cat” 𝑦2:“Cat”
𝑦3:“Dog” 𝑦4:“Dog”
𝑥1: 𝑥2:
𝑥3: 𝑥4:
Labelled Data
![Page 13: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/13.jpg)
函式的 Loss
𝒇𝟐“Cat”/“Cat”/“Dog”/“Dog”
𝑥1 / 𝑥2 / 𝑥3 / 𝑥4
Loss = 0%
接下來機器會自動找出Loss 最低的函式
𝑦1:“Cat” 𝑦2:“Cat”
𝑦3:“Dog” 𝑦4:“Dog”
𝑥1: 𝑥2:
𝑥3: 𝑥4:
Labeled Data
![Page 14: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/14.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
Supervised Learning
![Page 15: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/15.jpg)
Reinforcement Learning
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Supervised v.s. Reinforcement
• Supervised:
• Reinforcement Learning
Next move:“5-5”
Next move:“3-3”
First move …… many moves …… Win!
Alpha Go is supervised learning + reinforcement learning.
(Reward)
![Page 17: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/17.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
Reinforcement Learning
![Page 18: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/18.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
Unsupervised Learning
What can machine learn from unlabeled images?
![Page 19: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/19.jpg)
機器怎麼找出你想要的函式?
![Page 20: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/20.jpg)
Use RNN
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
限制函式尋找範圍
Linear
Network Architecture
Use CNN
![Page 21: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/21.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
函式尋找方法 – Gradient Descent
Implement the algorithm by yourself
Deep Learning Framework (3/26 PyTorch 教學、會錄影)
![Page 22: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/22.jpg)
前沿研究
![Page 23: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/23.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
This is a “cat”
Because …
![Page 24: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/24.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
Addnoise
This is a “cat”
Star Fish …
![Page 25: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/25.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
This is a “cat”
![Page 26: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/26.jpg)
CNN required
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
![Page 27: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/27.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
This is a “cat”
我不知道
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Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
99.5% 57.5%
Training Data
Testing Data
![Page 29: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/29.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
![Page 30: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/30.jpg)
Meta Learning = Learn to learn
• Now we design the learning algorithm
• Can machine learn the learning algorithm?
program for learning
I can learn!
program designing program
for learning
program for learning
I can learn!
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能不能讓機器聰明一點?
http://web.stanford.edu/class/psych209/Readings/LakeEtAlBBS.pdf
天資不佳卻勤奮不懈?
![Page 32: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/32.jpg)
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
![Page 33: Machine Learning 2020 - 國立臺灣大學speech.ee.ntu.edu.tw/~tlkagk/courses/ML2020/introduction.pdf · 2020-03-04 · Regression Classification RNN Seq2seq Meta Learning Unsupervised](https://reader034.vdocuments.mx/reader034/viewer/2022050102/5f4141329b891b40e351b3fb/html5/thumbnails/33.jpg)
終身學習 (Life-long Learning)
Learning Task 1
Learning Task 2
Learning Task 3
…
I can solve task 1.
I can solve tasks 1&2.
I can solve tasks 1&2&3.
Life-Long Learning (終身學習), Continuous Learning, Never Ending Learning, Incremental Learning
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CNN required
Regression
Classification
RNN Seq2seq
Meta LearningUnsupervised Learning(Auto-encoder)
Life-long Learning
Reinforcement Learning
CNN
Explainable AI
Adversarial Attack
Network Compression
Anomaly Detection
GAN
Transfer Learning(Domain Adversarial Learning)
Easy Normal Challenging
(數分鐘完成) (數小時完成) (數日完成)
Kaggle
(僅供參考)
Learning order
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課程網頁
• http://speech.ee.ntu.edu.tw/~tlkagk/courses_ML20.html
完全可以在家自學!
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課程網頁
在寫作業前先線上學習
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課程網頁所有作業都有 Colab 範例,
照著做就完成一半!
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課程網頁作業的要求都在這裡
(錄影預計 3/12 全數完成)
所有作業皆已經公告,現在就可以開始做了
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課程網頁上課補充的是相關主題最新的知識,和作業沒有直接關連 (會錄影)
10:20 開始 ,3/26 後每星期都有 (國定假日除外)
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課程網頁每一個作業都有死線
以後每週四上午 9:10 – 10:00 就是助教時間
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FB 社團
• 社團: “Machine Learning (2020,Spring)”
• https://www.facebook.com/groups/1099602297060276/
歡迎同學們提問 ☺