Fixed-Time Pinning Common Synchronization and Adaptive Synchronization for Delayed Quaternion-Valued Neural Networks
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS(2024)
摘要
This article focuses on the fixed-time pinning common synchronization and adaptive synchronization for quaternion-valued neural networks with time-varying delays. First, to reduce transmission burdens and limit convergence time, a pinning controller which only controls partial nodes directly rather than the entire nodes is proposed based on fixed-time control theory. Then, by Lyapunov function approach and some inequalities techniques, fixed-time common synchronization criterion is established. Second, further to realize the self-regulation function of pinning controller, an adaptive pinning controller which can adjust automatically the control gains is developed, the desired fixed-time adaptive synchronization is achieved for the considered system, and the corresponding criterion is also derived. Finally, the availability of these results is tested by simulation example.
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关键词
Synchronization,Artificial neural networks,Quaternions,Delays,Adaptive systems,Neurons,Color,Adaptive synchronization,fixed-time synchronization,pinning control,quaternion-valued neural networks (NNs)
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