1. Weighted sum synchronization of memristive coupled neural networks
- Author
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Chunhua Wang, Yichuang Sun, Chao Zhou, and Wei Yao
- Subjects
Lyapunov function ,0209 industrial biotechnology ,Artificial neural network ,Computer science ,Cognitive Neuroscience ,Node (networking) ,Intermittent control ,02 engineering and technology ,Function (mathematics) ,Topology ,Synchronization ,Computer Science Applications ,symbols.namesake ,020901 industrial engineering & automation ,Artificial Intelligence ,Control theory ,Control system ,Synchronization (computer science) ,0202 electrical engineering, electronic engineering, information engineering ,symbols ,020201 artificial intelligence & image processing ,Differential inequalities - Abstract
It is well known that weighted sum of node states plays an essential role in function implementation of neural networks. Therefore, this paper proposes a new weighted sum synchronization model for memristive neural networks. Unlike the existing synchronization models of memristive neural networks which control each network node to reach synchronization, the proposed model treats the networks as dynamic entireties by weighted sum of node states and makes the entireties instead of each node reach expected synchronization. In this paper, weighted sum complete synchronization and quasi-synchronization are both investigated by designing feedback controller and aperiodically intermittent controller, respectively. Meanwhile, a flexible control scheme is designed for the proposed model by utilizing some switching parameters and can improve anti-interference ability of control system. By applying Lyapunov method and some differential inequalities, some effective criteria are derived to ensure the synchronizations of memristive neural networks. Moreover, the error level of the quasi-synchronization is given. Finally, numerical simulation examples are used to certify the effectiveness of the derived results.
- Published
- 2020