Ironic, yes, and it shows how dependent Bayes methods are on priors. Pick bad 
priors (and that can even involve assigning equal probability to all unknowns) 
and with a bit of bad luck you can end up in a self-confirming loop. But 
usually it works.

My Bayesian spam detector (actually Microsoft's which is really stupid in the 
information it uses, and keeps blocking people on the Peirce list).

John

-----Original Message-----
From: Jon Awbrey [mailto:jawb...@att.net] 
Sent: March 26, 2015 7:25 PM
To: Danko Nikolic
Cc: peirce-l@list.iupui.edu
Subject: [PEIRCE-L] Re: Bayes and abduction

PS.  I know how to spell Bayes but my autospellbot, which is very likely a 
Bayesbot, thinks that a very unlikely sequence of letters. Ironic, no?

Jon

http://inquiryintoinquiry.com

> On Mar 26, 2015, at 4:24 PM, Jon Awbrey <jawb...@att.net> wrote:
> 
> Danko, List,
> 
> Bates' Rule is a mathematical theorem, that is, a deductive transformation 
> that can at best preserve the information in the data. Thus it is explicative 
> where abduction and induction are ampliative.
> 
> This is an old controversy that Peirce had with, I think it was the 
> Neyman-Pearson school of thought? 
> 
> There used to be a lot of literature and some understanding of this 
> point among AI folk, but that may be forgotten now.  That happens 
> periodically .
> 
> Regards,
> 
> Jon
> 
> http://inquiryintoinquiry.com
> 
>> On Mar 26, 2015, at 1:30 PM, Danko Nikolic <danko.niko...@googlemail.com> 
>> wrote:
>> 
>> Dear,
>> 
>> There was one more question that bugged me while writing the paper on 
>> practopoiesis: There has been a lot of work on Bayesian inference in the 
>> brain. So, my fear was that people who worked on Bayesian aspects of brain 
>> computation would argue that all the issues regarding logical abduction have 
>> been addressed through Bayesian-related work.
>> 
>> First, I have to say that my fear was not really grounded and for a strange 
>> reason. It turned out that all the experts on Bayesian inference who I 
>> talked to have never heard of logical abduction. That was kind of sad, but 
>> still did not solve the problem.
>> 
>> My intuition is that abduction is much more than Bayesian inference, but I 
>> have hard time defending this stance.
>> 
>> Can anybody tell me more about that relation? If one shows that a neural 
>> circuit performs Bayesian inference, has it been automatically shown that 
>> the circuit can perform logical abduction? I guess not. But I would like to 
>> know more about that.
>> 
>> The way I treated the issue in the paper was that I discussed primarily 
>> abduction and then briefly mentioned Bayes at the end as "related". I am not 
>> sure whether I could have done a better job.
>> 
>> Thank you very much.
>> 
>> Best regards,
>> 
>> Danko
>> 
>> --
>> Prof. Dr. Danko Nikolić
>> 
>> Web:
>> http://www.danko-nikolic.com
>> 
>> Mail address 1:
>> Department of Neurophysiology
>> Max Planck Institut for Brain Research Deutschordenstr. 46
>> 60528 Frankfurt am Main
>> GERMANY
>> 
>> Mail address 2:
>> Frankfurt Institute for Advanced Studies Wolfgang Goethe University 
>> Ruth-Moufang-Str. 1
>> 60433 Frankfurt am Main
>> GERMANY
>> 
>> ----------------------------
>> Office: (..49-69) 96769-736
>> Lab: (..49-69) 96769-209
>> Fax: (..49-69) 96769-327
>> danko.niko...@gmail.com
>> ----------------------------
>> 




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