[Computer-go] Hajin Lee will play a live commented game against CrazyStone

Henry Hemming typo.hh at gmail.com
Sun May 22 14:41:04 PDT 2016


If the network is too selective, the cost function used to generate it
doesn't penalize extreme predictions sufficiently? It was generated using
quadratic cost when it should have been using cross-entropy cost?

On Mon, May 23, 2016 at 12:08 AM Álvaro Begué <alvaro.begue at gmail.com>
wrote:

> Disclaimer: I haven't actually implemented MCTS with NNs, but I have
> played around with both techniques.
>
> Would it make sense to artificially scale down the values before the
> SoftMax is applied, so the probability distribution is not as concentrated,
> and unlikely moves are not penalized as much?
>
>
>
> On Sun, May 22, 2016 at 3:54 PM, Rémi Coulom <remi.coulom at free.fr> wrote:
>
>> Hi,
>>
>> Thanks for using Crazy Stone.
>>
>> I tried changes during the week, but nothing worked. So the version that
>> played the game was almost identical to the commercial version.
>>
>> The search did not anticipate Black E8 after B3. It seems the NN makes
>> the search too selective. I will investigate more.
>>
>> Rémi
>>
>> ----- Mail original -----
>> De: "Paweł Morawiecki" <pawel.morawiecki at gmail.com>
>> À: computer-go at computer-go.org
>> Envoyé: Dimanche 22 Mai 2016 21:29:56
>> Objet: Re: [Computer-go] Hajin Lee will play a live commented game
>> against      CrazyStone
>>
>>
>>
>> Hi,
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> It's fun to hear the pro making comments as she goes. I had hoped for a
>> better game, though.
>> Any comments from the CS camp?
>>
>>
>>
>> I'm not from CrazyStone Team but a happy user of CS Deep Learning.
>>
>>
>> I analyzed the game (30 000 playouts per move) with the version
>> commercially available and it got everything right. I mean every move Hajin
>> Lee questioned was also questioned by CrazyStone running on my PC. It
>> includes:
>>
>>
>> - questionable attachment in the first joseki they played
>> - hane in upper-left corner
>> - and finally a blunder at b3 (loosing move) and selection of this joseki
>> as well
>>
>>
>> Remi said that he's been working hard to improve CS over the last week,
>> but it looks like something went wrong and instead he got clearly a weaker
>> program. Particularly this B3 is really strange, where right after this
>> white catches everything with one move. Remi, what went wrong?
>>
>>
>> Cheers,
>> Paweł
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Thanks,
>> Álvaro.
>>
>>
>>
>>
>>
>>
>>
>>
>> On Mon, May 16, 2016 at 3:58 AM, Xavier Combelle <
>> xavier.combelle at gmail.com > wrote:
>>
>>
>>
>> That's fantastic
>>
>>
>> I suppose crazystone will play with crazystone account, but what will be
>> her handle ?
>>
>>
>>
>>
>>
>> 2016-05-16 9:50 GMT+02:00 Rémi Coulom < remi.coulom at free.fr > :
>>
>>
>> Hi,
>>
>> I am very happy to announce that Hajin Lee will play a live commented
>> game against Crazy Stone on Sunday, at 8PM Korean time. The game will take
>> place on KGS, and she will make live comments on her youtube channel.
>>
>> Haylee's youtube:
>> https://www.youtube.com/c/HayleesWorldofGoBaduk
>>
>> Rémi
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