Journal
KNOWLEDGE-BASED SYSTEMS
Volume 257, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.knosys.2022.109896
Keywords
Bio-inspired computing; Spiking neural P system; Coupled neuron; Computational power
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Funding
- National Key R&D Program of China for International S&T Cooperation Projects [2021YFE0102 100]
- National Natural Science Foundation of China [62072201]
- Provincial Key R&D Program of Hubei [2021BAA168]
- Fundamental Research Funds for the Central Universities [HUST:2019 kfyXMBZ056]
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The paper introduces the asynchronous spiking neural P system with rules on synapses (ASNPR system) and presents the ASNPRC system with coupled neurons. The computational power of the ASNPRC systems is investigated and it is proven that they are Turing universal function-computing devices. The results highlight the importance of coupled neurons in the computation power of ASNPR systems.
The asynchronous spiking neural P system with rules on synapses (ASNPR system) is a type of distributive and non-deterministic computing model inspired by neural activities in biology. In this work, the synchronous excitation/inhibition phenomenon of coupled neurons is abstracted as the all -or-none behavior of coupled neurons: spikes in the coupled neurons are supplemented/consumed if and only if all the coupled neurons in the same set synchronously receive/consume spikes. Based on all-or-none behaviors, the ASNPR system with coupled neurons (ASNPRC system) is introduced, where coupled neurons are grouped into several sets, and the changes in the content of coupled neurons in the same set are positively correlated. The computational power of the ASNPRC systems is investigated. It has been proven that ASNPRC systems using standard rules are Turing universal function-computing devices. Moreover, a universal ASNPRC system consisting of four neurons is constructed to compute functions. The results show that coupled neuronsis an efficient ingredient for the computation power of ASNPR systems in the sense that ASNPR systems using relatively few neurons achieve their universality with the help of couple neurons.(c) 2022 Elsevier B.V. All rights reserved.
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