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

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  • 1.
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  • 2.
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  • 3.
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  • 4.
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  • 13.
    Copyright © 2014OPT, Inc. All Rights Reserved. ε-Greedy   13
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    Copyright © 2014OPT, Inc. All Rights Reserved. Softmax 14 MCMC SA - ( MCMC SA ) - n ※ ( → ∞ ) → 1/n ( → 0 )
  • 15.
    Copyright © 2014OPT, Inc. All Rights Reserved. UCB (Softmax ) UCB1 15
  • 16.
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    Copyright © 2014OPT, Inc. All Rights Reserved. (UCB) UCB (CTR) 40% 17 CTR
  • 18.
    Copyright © 2014OPT, Inc. All Rights Reserved. python scikit-learn ( ) github https://github.com/johnmyleswhite/BanditsBook ( http://qiita.com/ysekky/items/4e782603f7592743625b 18
  • 19.
    Copyright © 2014OPT, Inc. All Rights Reserved. Copyright © 2014 OPT, Inc. All Rights Reserved. AI Web AI AI
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    Copyright © 2014OPT, Inc. All Rights Reserved. … tannsaku ( ) 21
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    Copyright © 2014OPT, Inc. All Rights Reserved. 30 → 361 ( ) http://www.slideshare.net/TakashiKato2/ss-57966067 22
  • 23.
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