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Manfred comments on Open thread, September 2-8, 2013 - Less Wrong Discussion

0 Post author: David_Gerard 02 September 2013 02:07PM

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Comment author: alex_zag_al 05 September 2013 09:10:07PM *  4 points [-]

Has anyone here read up through ch18 of Jaynes' PT:LoS? I just spent two hours trying to derive 18.11 from 18.10. That step is completely opaque to me, can anybody who's read it help?

You can explain in a comment, or we can have a conversation. I've got gchat and other stuff. If you message me or comment we can work it out. I probably won't take long to reply, I don't think I'll be leaving my computer for long today.

EDIT: I'm also having trouble with 18.15. Jaynes claims that P(F|A_p E_aa) = P(F|A_p) but justifies it with 18.1... I just don't see how that follows from 18.1.

EDIT 2: It hasn't answered my question but there's online errata for this book: http://ksvanhorn.com/bayes/jaynes/ Chapter 18 has a very unfinished feel, and I think this is going to help other confusions I get into about it

Comment author: Manfred 13 September 2013 12:20:10PM 0 points [-]

Yeah, I don't see how those make sense either.