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AI Challenge Forums • View topic - Hoping for lots of discussion after Friday

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Hoping for lots of discussion after Friday

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Re: Hoping for lots of discussion after Friday

Postby Fritzlein » Sun Feb 28, 2010 11:50 pm

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Re: Hoping for lots of discussion after Friday

Postby psb217 » Mon Mar 01, 2010 12:02 am

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Re: Hoping for lots of discussion after Friday

Postby a1k0n » Mon Mar 01, 2010 6:55 am

Thinking about it a bit more, it's totally logical why the numbers came out that way. Each edge gets counted twice (if A has an edge to B, then I count that edge both for A's square and for B's square.) The average number of edges per node is probably slightly above 3. 2*3*.150 + 0.050 is 0.950, or close to one "endgame node" per "midgame territory node", so to speak, if the endgame is the point after separation. Least squares estimation just weighted it that way and it would probably be equally valid to weigh it differently. So it was a lot of work to get a simple result, which is one reason I didn't really say anything about it sooner. I guess at least thinking about the issue was important.

I probably could have done some more fancy inference on nodes which are corners, passages, etc, and gotten a better heuristic. But I honestly didn't think of it until luv2run mentioned it today. I was more concerned with figuring out which areas are useful to the bot and which need to be ignored because of narrow passages preventing a return to the area.
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Re: Hoping for lots of discussion after Friday

Postby Fritzlein » Tue Mar 02, 2010 5:06 pm

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