[talks] Bill Press speaking at PICASso today, 12:30

[Elena Zaslavsky]

Bill Press of "Numerical Recipes in C" speaking at PICASso today.

 

From: picasso-bounces at lists.cs.princeton.edu
[mailto:picasso-bounces at lists.cs.princeton.edu] On Behalf Of Cecile
Huttenhower
Sent: Monday, November 24, 2008 9:12 AM
To: picasso-faculty at lists.cs.princeton.edu; picasso at lists.cs.princeton.edu
Subject: [PICASso] TODAY - What Is a Statistical Model and When Do I Need
One?

 

** PICASso:

** Program in Integrative Information, Computer and Application Sciences

** www.cs.princeton.edu/picasso

**

** TALK TODAY -- Monday, November 24, 2008

 

Interdisciplinary Computational Seminars

http://www.cs.princeton.edu/picasso/computational_lunch.php

 

 

 

TITLE:    What Is a Statistical Model and When Do I Need One? 

 

SPEAKER:  Bill Press, CS, U. Texas

 

TIME:     Monday, November 24, 2008

          Seminar begins at 12:30 p.m. (lunch provided ~12:20)

 

LOCATION: Room 104, Computer Science, Princeton University

 

ABSTRACT:

 

Whether by differential equations (ODEs or PDEs) or algebraic systems of
equations, computational science traffics mainly in deterministic models of
physical systems. While we sometimes make the mistake of thinking that the
model "is" the physical system, it is always only an abstract, and
approximate, representation. Statistical models are a different kind of
abstraction, not for the deterministic part of a system, but for how it
interacts with physical stochasticity and/or with Bayesian priors expressing
imperfect knowledge. This talk compares statistical and deterministic
models, using examples drawn from cosmology and bioinformatics.

 

 

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