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| Calculating E[HS2] ? http://poker-ai.org/phpbb/viewtopic.php?f=24&t=2572 |
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| Author: | vlad2048 [ Wed Sep 04, 2013 11:58 am ] |
| Post subject: | Calculating E[HS2] ? |
Hi, i'm looking at Michael Johanson thesis where he explains the E[HS2] metric. poker.cs.ualberta.ca/publications/johanson.msc.pdf Specifically on page 25 he writes: E[HS2](b)=(0.2^2+0.8^2)/2=0.68 but that's wrong ! It's =0.34 So what's the correct formula ? If the result is not bigger than 0.5 then it doesn't prove his point: E[HS2] considers the hand with higher potential to be more similar to hands with high hand strength. |
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| Author: | spears [ Wed Sep 04, 2013 1:15 pm ] |
| Post subject: | Re: Calculating E[HS2] ? |
The formula is correct, and his point is made, even though his arithmetic is wrong. a = (0.4,0.6) b = (0.2,0.8) ehs(a) = 0.5 ehs(b) = 0.5 ehs2(a) = 0.26 ehs2(b) = 0.34 ehs2 ranks high potential hands higher than low potential hands even when average strength (ehs) is the same. |
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| Author: | vlad2048 [ Wed Sep 04, 2013 4:09 pm ] |
| Post subject: | Re: Calculating E[HS2] ? |
Oh thanks a lot spears, it makes sense now! |
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