Random-coupled Neural Network
CoRR(2024)
Abstract
Improving the efficiency of current neural networks and modeling them in
biological neural systems have become popular research directions in recent
years. Pulse-coupled neural network (PCNN) is a well applicated model for
imitating the computation characteristics of the human brain in computer vision
and neural network fields. However, differences between the PCNN and biological
neural systems remain: limited neural connection, high computational cost, and
lack of stochastic property. In this study, random-coupled neural network
(RCNN) is proposed. It overcomes these difficulties in PCNN's neuromorphic
computing via a random inactivation process. This process randomly closes some
neural connections in the RCNN model, realized by the random inactivation
weight matrix of link input. This releases the computational burden of PCNN,
making it affordable to achieve vast neural connections. Furthermore, the image
and video processing mechanisms of RCNN are researched. It encodes constant
stimuli as periodic spike trains and periodic stimuli as chaotic spike trains,
the same as biological neural information encoding characteristics. Finally,
the RCNN is applicated to image segmentation, fusion, and pulse shape
discrimination subtasks. It is demonstrated to be robust, efficient, and highly
anti-noised, with outstanding performance in all applications mentioned above.
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