On Fri, 2003-11-21 at 04:23, Ian Clarke wrote: > Edward J. Huff wrote: > > It seems to me that NGR can't possibly do certain things. > > When the standard deviation exceeds the mean, you can't > > even predict the sign of your random variable. > > The standard deviation exceeding the mean, if it does occur, isn't the > fatal problem you think it is. NGR's data is likely to be extremely > noisy, but provided that it is able to extract some generalization it > should work, irrespective of the std dev.
The question at issue is whether NGR can be used to distinguish between nodes based on bandwidth, while the bandwidth available to a transfer is allowed to vary randomly depending on requests from other nodes. The issue is complicated: any node can have its marginal available bandwidth fall near zero, and there is a positive feedback loop through the estimators leading to oscillation and inefficient use of resources. I think this is a valid and important question. Your response does not address it. -- Ed Huff _______________________________________________ Devl mailing list [EMAIL PROTECTED] http://dodo.freenetproject.org/cgi-bin/mailman/listinfo/devl
