This sounds extremely interesting,   Since you posted on class-l, have 
thought of giving this talk at the CSNA meeting?
Or at the Joint statistical Meeting?

Art Kendall
Social Research Consultants

Fionn Murtagh wrote:
> Inaugural Lecture, Royal Holloway, University of London
> (Egham, Surrey, west of London)
> By Professor Fionn Murtagh, Head of Computer Science Department
> Thinking Ultrametrically: Understanding Massive Data Sets &
> Navigating Information Spaces
> Thursday 22 February 2007 at 5.30 pm
> In real life, hierarchical reasoning is as essential as reasoning in
> metric terms (for the latter, think of parking a car).  We look at
> how the hierarchical viewpoint is essential for understanding and
> exploiting massive stores of digital data.  We exemplify how an
> ultrametric embedding is needed to address problems as varied as the
> structure of text, the physics of the early Universe, and social
> conflict.
> Main Lecture Theatre, Founder's Building, Royal Holloway,
> University of London, Egham, Surrey
> All the best,
> Fionn Murtagh
> fmurtagh at acm dot org
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