Spiking Neural-Networks-Based Data-Driven Control

Spiking Neural-Networks-Based Data-Driven Control

Liu, Y. (Student TU Delft)
Pan, W. (TU Delft Robot Dynamics)

2023

Machine learning can be effectively applied in control loops to make optimal control decisions robustly. There is increasing interest in using spiking neural networks (SNNs) as the apparatus for machine learning in control engineering because SNNs can potentially offer high energy efficiency, and new SNN-enabling neuromorphic hardware is being rapidly developed. A defining characteristic of control problems is that environmental reactions and delayed rewards must be considered. Although reinforcement learning (RL) provides the fundamental mechanisms to address such problems, implementing these mechanisms in SNN learning has been underexplored. Previously, spike-timing-dependent plasticity learning schemes (STDP) modulated by factors of temporal difference (TD-STDP) or reward (R-STDP) have been proposed for RL with SNN. Here, we designed and implemented an SNN controller to explore and compare these two schemes by considering cart-pole balancing as a representative example. Although the TD-based learning rules are very general, the resulting model exhibits rather slow convergence, producing noisy and imperfect results even after prolonged training. We show that by integrating the understanding of the dynamics of the environment into the reward function of R-STDP, a robust SNN-based controller can be learned much more efficiently than TD-STDP.

spiking neural network
reinforcement learning
control

http://resolver.tudelft.nl/uuid:b303ac20-37a6-4722-83d1-90874e97f378

10.3390/electronics1202031

2079-9292

Electronics (Switzerland), 12 (2)

Institutional Repository

journal article

© 2023 Y. Liu, W. Pan