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Subject: Re: Fail-soft or Fail-hard ?

Author: Ulrich Tuerke

Date: 08:33:22 11/04/00

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>I'm not aware of anything that says that when using fail-soft, you _must_ start
>off at +/- infinity.

Isn't it the definition of "fail soft", to initialize best = -infinity in the
full search region ? May be I'm confusing things again.

> I don't, for example, yet I still let the search return
>values outside alpha/beta.

I don't see how to get an upper bound < alpha, when the best value had been
initialized to alpha. Your search will just return the initial value in case of
a "fail low", won't it ?

> I found it slightly better because you get a bit
>better info out of the hash table.  But it was only a "bit" better.  Not a huge
>win.

Why do you get better info out of the hash table in this case ?

>
>More important if you use mtd(f) of course.

Thanks, Uli



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