Fast Learning in Spiking Neural Networks by Learning Rate Adaptation
For accelerating the supervised learning by the SpikeProp algorithm with the temporal coding paradigm in spiking neural networks (SNN), three learning rate adaptation methods (heuristic rule, delta-delta rule, and delta-bar-delta rule), which used to speed up training in artificial neural networks (ANN), are used to develop the training algorithms for feedforward SNN. The performance of these algorithms is investigated by three classification experiments: the classical XOR problem, the Iris dataset with continuous input variables, and Poisson trains of discrete spikes. The results demonstrate that all the three learning rate adaptation methods are able to speed up convergence of SNN compared with the original SpikeProp algorithm. Furthermore, if the adaptive learning rate is used in combination with the momentum term, the two modifications will balance each other in a beneficial way to accomplish rapid and steady convergence. In the three learning rate adaptation methods, delta-bar-delta rule performs the best. The delta-bar-delta method with momentum has the fastest convergence rate, the greatest stability of training process, and the maximum accuracy of network learning. The proposed algorithms in this paper are simple and efficient, and consequently valuable for practical applications of SNN.
Spiking neural networks SpikeProp Adaptive learning rate
FANG Huijuan LUO Jiliang WANG Fei
College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
国内会议
厦门
英文
1-7
2012-08-01（万方平台首次上网日期，不代表论文的发表时间）