New Clock-Driven Algorithm Based on Separation of Synaptic Conductance Computation

Authors

Zhijie Wang, College of Information Science and Technology, Donghua University, Shanghai 201620, China;
Peng Xia, College of Information Science and Technology, Donghua University, Shanghai 201620, China;
Han Fang, College of Information Science and Technology, Donghua University, Shanghai 201620, China;
Xiaochun Gu, College of Information Science and Technology, Donghua University, Shanghai 201620, China;

Abstract

Abstract: In order to reduce the computing time when simulating the biologic neural network, an efficient clock-driven algorithm based on the separation of synaptic conductance computation is presented. It is found that the calculation of the synaptic state variables can be separated into two independent parts: one called conductance coefficient related with the pre-synaptic neuron, and the other called synaptic current. By introducing the data structure of the virtual synapse cluster to storing sequences of synaptic conductance coefficient, the former part can be calculated independently according to the spiking states of pre-synaptic neuron at each time step. When calculating the currents of all the synapses related with this pre-synaptic neuron, it is only need to calculate synaptic current by accessing the conductance coefficient from the virtual synapse cluster. Thus, the repetition of the calculation of the synaptic conductance coefficient is reduced. Simulation results validate the algorithm proposed in this paper.

Recommended Citation

Wang, Zhijie; Xia, Peng; Fang, Han; and Gu, Xiaochun (2019) "New Clock-Driven Algorithm Based on Separation of Synaptic Conductance Computation," Journal of System Simulation: Vol. 31: Iss. 1, Article 1.
DOI: 10.16182/j.issn1004731x.joss.17-0213
Available at: https://dc-china-simulation.researchcommons.org/journal/vol31/iss1/1

First Page

1

Revised Date

2017-09-25

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.17-0213

Last Page

7

CLC

TP391.9

Recommended Citation

Wang Zhijie, Peng Xia, Han Fang, Gu Xiaochun. New Clock-Driven Algorithm Based on Separation of Synaptic Conductance Computation[J]. Journal of System Simulation, 2019, 31(1): 1-7.

DOI

10.16182/j.issn1004731x.joss.17-0213