Teaching Machine Learning

Insights on how to teach machine learning and deep learning.
The entry barrier is not that high!
Video: https://www.youtube.com/watch?v=dyoxtDhUR74
Conference: https://pydata.org/warsaw2017/

Transcript

1. Teaching Machine Learning Piotr Migdał, PhD http://p.migdal.pl @pmigdal PyData Warsaw Conference 19 Oct 2017
2. PhD in quantum physics theory (2014, ICFO, Barcelona) data scientist (deepsense.ai / consultant)
 machine learning deep learning data-viz (D3.js)
3. I teach…
5. Outline • Everything is easy • Typical problems • Getting pragmatic
7. A person first learns classical mechanics • …by playing with balls, blocks? • …by learning Newton laws, differential calculus?
8. A person first learns natural numbers • …by counting apples, toys? • …by the von Neumann construction?
9. i ~ ˙ = ⇣ ~2 2m r2 + V ( x ) ⌘ ˆ H = E
10. A person first learns quantum mechanics • ...by learning linear algebra, complex numbers?
11. http://p.migdal.pl/2016/08/15/quantum-mechanics-for-high-school-students.html
12. http://quantumgame.io/
13. A person first learns machine learning • ...by studying computer science, mathematics
 and statistics for years?
14. you don’t understand Machine Learning unless you can teach it with pen&paper (or at least - JavaScript)
16. https://generalabstractnonsense.com/2017/03/A-quick-look-at-Support-Vector-Machines/
17. Machine Learning https://twitter.com/b0rk/status/821922905890103298/photo/1
18. Decision trees, visually http://www.r2d3.us/visual-intro-to-machine-learning-part-1/
19. http://p.migdal.pl/2017/01/06/king-man-woman-queen-why.html Julia Bazińska’s talk “Exploring word2vec vector space" - tomorrow at 15:00 Word2vec
20. Matrix factorizaton http://p.migdal.pl/matrix-decomposition-viz/, work in progress
21. https://distill.pub/
22. …but at least Deep Learning is hard, isn’t it?
26. Spreadsheet-based deep learning http://www.deepexcel.net/
27. http://setosa.io/ev/image-kernels/
28. Things which are not problems • I don’t know Python • They are only high-school • They are not from STEM
29. Trypophobia detector by high-school students https://github.com/cytadela8/trypophobia
30. Trypophobia detector by high-school students https://github.com/cytadela8/trypophobia
31. Problems with teachers • Too much math details & too little insight • Too much historical inertia • No plots • Too little real data
 (e.g. all np.random.randn(n, m))
32. Real data, plots > arrays
33. Pragmatic algorithms • kNN • Linear + Logistic
 Regression • Random Forest • XGBoost • Neural Networks
34. Problems with clients • Everyone is an “expert” • Squeezing one semester (or a few)
 into a few days (or just one) • Deep learning will solve all our problems • Installation!!!
35. Logistic Regression
 vs Random Forest vs Deep Learning https://github.com/szilard/benchm-ml http://datascience.la/benchmarking-random-forest-implementations/
36. Easy setup • Python 3 with Anaconda • Jupyter Notebook • Neptune.ML
37. Thank you! Questions? more on my blog
 http://p.migdal.pl/ @pmigdal