Bio-inspired digit recognition using reward-modulated spike-timing-dependent plasticity in deep convolutional networks

作者:

Highlights:

• We used a bio-inspired deep convolutional spiking neural network with latency-coding.

• We trained the low (resp. top) layers with STDP (resp. reward-modulated STDP).

• Accuracy was 97.2% on MNIST, without requiring an external classifier.

• Reward-modulated STDP favors diagnostic features, while STDP favors frequent ones.

• The proposed neuron-based decision-making layer is suitable for energy-efficient hardware implementation.

摘要

•We used a bio-inspired deep convolutional spiking neural network with latency-coding.•We trained the low (resp. top) layers with STDP (resp. reward-modulated STDP).•Accuracy was 97.2% on MNIST, without requiring an external classifier.•Reward-modulated STDP favors diagnostic features, while STDP favors frequent ones.•The proposed neuron-based decision-making layer is suitable for energy-efficient hardware implementation.

论文关键词:Spiking neural networks,Deep architecture,Digit recognition,STDP,Reward-modulated STDP,Latency coding

论文评审过程:Received 31 March 2018, Revised 27 April 2019, Accepted 7 May 2019, Available online 21 May 2019, Version of Record 23 May 2019.

论文官网地址:https://doi.org/10.1016/j.patcog.2019.05.015