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戦略を立てる機械学習

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第14回 Machine Learning15minutes! 発表資料

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戦略を立てる機械学習

  1. 1. Copyright © 2014 OPT, Inc. All Rights Reserved. Copyright © 2014 OPT, Inc. All Rights Reserved. ~ AI ~
  2. 2. Copyright © 2014 OPT, Inc. All Rights Reserved. Python Scala ADPLAN Scala( ) 2
  3. 3. Copyright © 2014 OPT, Inc. All Rights Reserved. Web AI AI 3
  4. 4. Copyright © 2014 OPT, Inc. All Rights Reserved. Copyright © 2014 OPT, Inc. All Rights Reserved. Web Web AI AI
  5. 5. Copyright © 2014 OPT, Inc. All Rights Reserved. ROI 5
  6. 6. Copyright © 2014 OPT, Inc. All Rights Reserved. A/B N 6
  7. 7. Copyright © 2014 OPT, Inc. All Rights Reserved. - CPA( = Cost / CV ) CTR ( = CLICK / ) - ( ) 7
  8. 8. Copyright © 2014 OPT, Inc. All Rights Reserved. Copyright © 2014 OPT, Inc. All Rights Reserved. Web AI AI
  9. 9. Copyright © 2014 OPT, Inc. All Rights Reserved. - 9
  10. 10. Copyright © 2014 OPT, Inc. All Rights Reserved. 1. (A/B ) 2. 3. 10
  11. 11. Copyright © 2014 OPT, Inc. All Rights Reserved. A/B exploitation exploration - ← - ← - AB ← - ← 11 A/B
  12. 12. Copyright © 2014 OPT, Inc. All Rights Reserved. Copyright © 2014 OPT, Inc. All Rights Reserved. Web AI AI
  13. 13. Copyright © 2014 OPT, Inc. All Rights Reserved. ε-Greedy   13
  14. 14. Copyright © 2014 OPT, Inc. All Rights Reserved. Softmax 14 MCMC SA - ( MCMC SA ) - n ※ ( → ∞ ) → 1/n ( → 0 )
  15. 15. Copyright © 2014 OPT, Inc. All Rights Reserved. UCB (Softmax ) UCB1 15
  16. 16. Copyright © 2014 OPT, Inc. All Rights Reserved. Copyright © 2014 OPT, Inc. All Rights Reserved. Web AI AI
  17. 17. Copyright © 2014 OPT, Inc. All Rights Reserved. (UCB) UCB (CTR) 40% 17 CTR
  18. 18. Copyright © 2014 OPT, Inc. All Rights Reserved. python scikit-learn ( ) github https://github.com/johnmyleswhite/BanditsBook ( http://qiita.com/ysekky/items/4e782603f7592743625b 18
  19. 19. Copyright © 2014 OPT, Inc. All Rights Reserved. Copyright © 2014 OPT, Inc. All Rights Reserved. AI Web AI AI
  20. 20. Copyright © 2014 OPT, Inc. All Rights Reserved. 0 1 20
  21. 21. Copyright © 2014 OPT, Inc. All Rights Reserved. … tannsaku ( ) 21
  22. 22. Copyright © 2014 OPT, Inc. All Rights Reserved. 30 → 361 ( ) http://www.slideshare.net/TakashiKato2/ss-57966067 22
  23. 23. Copyright © 2014 OPT, Inc. All Rights Reserved. Copyright © 2014 OPT, Inc. All Rights Reserved. . AI Web AI AI
  24. 24. Copyright © 2014 OPT, Inc. All Rights Reserved. 2 ( ) ( ) 24 Minimax
  25. 25. Copyright © 2014 OPT, Inc. All Rights Reserved. ( ) •   25 αβ
  26. 26. Copyright © 2014 OPT, Inc. All Rights Reserved. (αβ ) 1. UCB1 2. ( ) 26
  27. 27. Copyright © 2014 OPT, Inc. All Rights Reserved. 1. 2. ( ) 3. ( Google Alpha Go 1 ) 27
  28. 28. Copyright © 2014 OPT, Inc. All Rights Reserved. AI - - 28
  29. 29. Copyright © 2014 OPT, Inc. All Rights Reserved. Copyright © 2014 OPT, Inc. All Rights Reserved. . Web AI AI
  30. 30. Copyright © 2014 OPT, Inc. All Rights Reserved. AI AI AI ( ) 30

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