[REMINDER] [Nrg-l] NRG on Wednesday Novemeber 17th at 4pm

Niky Riga inki at cs.bu.edu
Wed Nov 17 14:13:38 EST 2004

NRG will start at 4:00 at the grad lounge. 
CU all there

On Sat, 13 Nov 2004, Niky Riga wrote:

> Hi,
> This week Nahur is presenting a paper that appeared in this year's IMC.
> The paper is:
> "Traffic Matrix Estimation on a Large IP Backbone - A Comparison on Real 
>   Data"
> A link for the paper and the abstract follows.
> The NRG will be on Wednesday 11/17/04 at 3pm at the grad lounge.
> CU all there,
> Niky
> http://www-net.cs.umass.edu/imc-2004/papers/p149-gunnar.pdf
> This paper considers the problem of estimating the point to point
> traffic matrix in an operational IP backbone. Contrary to previous
> studies, that have used a partial traffic matrix or demands estimated
> from aggregated Netflow traces, we use a unique data set of complete
> traffic matrices from a global IP network measured over five-minute
> intervals. This allows us to do an accurate data analysis on the
> time-scale of typical link-load measurements and enables us to make a
> balanced evaluation of different traffic matrix estimation techniques.
> We describe the data collection infrastructure, present spatial and
> temporal demand distributions, investigate the stability of fan-out
> factors, and analyze the mean-variance relationships between demands.
> We perform a critical evaluation of existing and novel methods for traffic
> matrix estimation, including recursive fanout estimation, worst-case
> bounds, regularized estimation techniques, and methods that rely on
> mean-variance relationships. We discuss the weaknesses and strengths of
> the various methods, and highlight differences in the results for the
> European and American subnetworks.
> -- 
> Use a smile as your shield. It will protect u better than cruelty in 
> return will.
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