RichardKennaway comments on The correct response to uncertainty is *not* half-speed - Less Wrong

77 Post author: AnnaSalamon 15 January 2016 10:55PM

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Comment author: RichardKennaway 20 January 2016 11:47:00AM 0 points [-]

Randomising the length of the first step will improve on the constant factor by about 2. Similar analysis to the non-adversarial case, and with the same ETA I just added to my earlier comment.

Comment author: gjm 20 January 2016 12:18:10PM 0 points [-]

If you make the run lengths increase exponentially instead of linearly then you get O(k) unconditionally.

Comment author: RichardKennaway 20 January 2016 02:14:25PM 0 points [-]

I know. I was improving the constant factor.

Comment author: gjm 20 January 2016 05:18:45PM 0 points [-]

Ah yes, OK, essentially the same randomization helps against an adversary when you're growing exponentially as when you're growing only linearly. Fair enough.