Cortical Algorithm for Symbolic and Sub-symbolic Applications

Authors: Ronald Römer

Abstract:

Researchin the field of neural processing proposesa bidirectional computation scheme amongthe hierarchical organized levels of the brain. This scheme is called cortical algorithm. In speech processing a similar approach is applied to the distinct linguistic levels, where a powerful technologyis given by the weighted Finite State Transducers. FSTs translate a symbol sequence of one level into a symbol sequence of another level. In this approach either a top-down process or a bottom-up process takes place, whereas in the cortical algorithm both processes simultaneously occur. To utilize this property in the area of signal- and speech processing, we formulate the cortical algorithm for HMMs and FSTs.


Year: 2010
In session: Signal Processing
Pages: 150 to 157