Title :
Achieving optimal Bayesian classification performance using a novel approach: the `race to the attractor´ neural network model
Author :
Ferland, Guy ; Yeap, Tet
Author_Institution :
Sch. of Inf. Technol. & Eng., Ottawa Univ., Ont., Canada
Abstract :
It is possible to classify patterns by using a set of nonlinear dynamical systems (NDS) where each NDS specializes in classifying inputs as IN or OUT of the specific class they represent. Inputs are iterated through each NDS and converge along a trajectory towards a globally stable attractor which is the prototype for the class represented by that NDS. In the `race to the attractor´ neural network model (RTA NN), neural nets learn a convergence rate function for each input so that the time required to converge to the attractor increases as the probability of class membership of the input decreases. By iterating all NN simultaneously with the same input, a `race to the attractor´ ensues, where the winner `r´ identifies the unknown input as a member of class `r´. The optimal classification performance of a Bayesian classifier can be achieved by the RTA NN when certain constraints (discussed in the article) are met
Keywords :
Bayes methods; convergence; neural nets; nonlinear dynamical systems; optimisation; pattern classification; probability; Bayesian classifier; NDS; RTA NN; class membership; convergence rate function; globally stable attractor; neural network model; nonlinear dynamical systems; optimal Bayesian classification performance; optimal classification performance; pattern classification; race to the attractor; unknown input; Bayesian methods; Biological neural networks; Convergence; Humans; Information technology; Intelligent networks; Neural networks; Neurons; Nonlinear dynamical systems; Prototypes;
Conference_Titel :
Virtual and Intelligent Measurement Systems, 2001, IEEE International Workshop on. VIMS 2001
Conference_Location :
Budapest
Print_ISBN :
0-7803-6568-2
DOI :
10.1109/VIMS.2001.924912