John, On Mon, Jun 21, 2010 at 10:06 AM, John G. Rose <[email protected]>wrote:
> > > Solutions for large-scale network stabilities would vary per network > > topology, function, etc.. > > > > However, there ARE some universal rules, like the 12db/octave > requirement. > > > > Really? Do networks such as botnets really care about this? Or does it > apply? > Anytime negative feedback can become positive feedback because of delays or phase shifts, this becomes an issue. Many competent EE people fail to see the phase shifting that many decision processes can introduce, e.g. by responding as quickly as possible, finite speed makes finite delays and sharp frequency cutoffs, resulting in instabilities at those frequency cutoff points because of violation of the 12db/octave rule. Of course, this ONLY applies in feedback systems and NOT in forward-only systems, except at the real-world point of feedback, e.g. the bots themselves. Of course, there is the big question of just what it is that is being "attenuated" in the bowels of an intelligent system. Usually, it is computational delays making sharp frequency-limited attenuation at their response speeds. Every gamer is well aware of the oscillations that long "ping times" can introduce in people's (and intelligent bot's) behavior. Again, this is basically the same 12db/octave phenomenon. Steve ------------------------------------------- agi Archives: https://www.listbox.com/member/archive/303/=now RSS Feed: https://www.listbox.com/member/archive/rss/303/ Modify Your Subscription: https://www.listbox.com/member/?member_id=8660244&id_secret=8660244-6e7fb59c Powered by Listbox: http://www.listbox.com
