paper posting

[Jayanta Basak]

The following paper is available in 

http://xxx.lanl.gov/abs/cond-mat/9811403


Feedbacks regrading this article to the authors will be highly
appreciated.




Title : Response of an Excitatory-Inhibitory Neural Network to External 
        Stimulation: An Application to Image Segmentation

Authors : Sitabhra Sinha and Jayanta Basak

Abstract : Neural network models comprising elements which have
exclusively excitatory or inhibitory synapses are capable of a wide 
range of dynamic behavior, including chaos. In this paper, a simple
excitatory-inhibitory neural pair, which forms the building block 
of larger networks, is subjected to external stimulation. The response
shows transition between various types of dynamics, depending upon 
the magnitude of the stimulus. Coupling such pairs over a local
neighborhood in a two-dimensional plane, the resultant network can 
achieve a satisfactory segmentation of an image into ``object'' and
``background''. Results for synthetic and and ``real-life'' images 
are given.




Regards,

Jayanta Basak
Machine Intelligence Unit
Indian Statistical Institute
Calcutta 700 035, India.