CeBiTec Colloquium (non-scheduled)

 date 

Tuesday, August 2nd 2010, 15 c.t.

 location 

G2-104, CeBiTec Building

 speaker 

Prof. Dr. Herbert Jäger

Jacobs University Bremen

 title 

Observable Operator Models – Introduction and Current Research

  

Observable Operator Models (OOMs) are a generalization of hidden Markov models (HMMs). They can be represented by a matrix formalism that is completely analog to HMMs, with the only difference that negative entries are allowed in the matrices and vectors. This
little difference has far-reaching consequences:

  • OOMs have a fundamentally different concept of state, namely, a state is an encoding of the future distribution of the process

  • OOMs can model essentially every stochastic process, i.e. they do not specify a particular class of processes but yield a general representation theory of stochastic processes as a subtheory of linear algebra

  • The linear theory of OOMs leads to a novel class of learning algorithms for stochastic processes, which are asymptotically correct, constructive, statistically efficient, and fast


The talk gives an introduction to the basic concepts of OOM theory, and
sketches ongoing research. This is concerned with extending the approach to modeling networks of interacting stochastic processes, with possible applications in the biosciences.

 host 

Prof. Dr. Jens Stoye