Brain-inspired global-local hybrid learning towards human-like intelligence
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The combination of neuroscience-oriented and computer-science-oriented approaches is the most promising method to develop artificial general intelligence (AGI) that can learn general tasks similar to humans. Currently, two main routes of learning exist, including neuroscience-inspired methods, represented by local synaptic plasticity, and machine-learning methods, represented by backpropagation. Both have advantages and complement each other, but neither can solve all learning problems well. Integrating these two methods into one network may provide better learning abilities for general tasks. Here, we report a hybrid spiking neural network model that integrates the two approaches by introducing a meta-local module and a two-phase causality modelling method. The model can not only optimize local plasticity rules, but also receive top-down supervision information. In addition to flexibly supporting multiple spike-based coding schemes, we demonstrate that this model facilitates learning of many general tasks, including fault-tolerance learning, few-shot learning and multiple-task learning, and show its efficiency on the Tianjic neuromorphic platform. This work provides a new route for brain-inspired computing and facilitates AGI development.
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