NIPS Workshop

[bishopc]

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                      NIPS*94 Workshop:


                     DOING IT BACKWARDS: 
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      NEURAL NETWORKS AND THE SOLUTION OF INVERSE PROBLEMS
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          Organizer: Chris M Bishop (Aston University)



Intended Audience
-----------------

Researchers and practitioners in neural computing interested in 
inverse problems.

Introduction
------------

Many of the tasks for which neural networks are commonly used 
correspond to the solution of an `inverse' problem. Such tasks are 
characterized by the existence of a well-defined, deterministic 
`forward' problem which might, for instance, correspond to causality 
in a physical system. By contrast the inverse problem may be 
ill-posed, and may exhibit multiple solutions. 

A wide range of different approaches have been developed to tackle
inverse problems, and one of the main goals of the workshop is to 
contrast the way in which they address the underlying technical 
issues, and to identify key areas for future research. Ample time 
will be allowed for discussions. 



Morning Session
---------------

7:30 "Welcome and overview" Chris Bishop (Aston)
7:35 "From ill-posed problems to all neural networks and beyond 
      through regularization" Tomaso Poggio / Federico Girosi (MIT) 
7:55 "Solving inverse problems using an EM approach to density 
      estimation" Zoubin Ghahramani (MIT) 
8:15 "Density estimation with periodic variables" Chris Bishop (Aston) 
8:35 "Doing it forwards, undoing it backwards: high-dimensional
      compression and expansion" Russell Beale (University of Birmingham) 
8:55 "Inversion of feed-forward networks by gradient descent"
      Alexander Linden (Berkeley)
9.15 Discussion


Afternoon Session
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4:30 "An iterative inverse of a talking machine" Sid Fels (Toronto) 
4:50 "Diagnostic problem solving" Sungzoon Cho (Postech, S Korea) 
5:10 "Multiple Models in Inverse Filtering of the Vocal Tract" 
      M Niranjan (Cambridge) 
5:30 "Goal directed model inversion" Silvano Colombano (NASA Ames)
5:50 "Predicting element concentrations in the SSME exhaust plume"
      Kevin Whitaker (University of Alabama)  
6:10 Discussion