A Hybrid CMOS-Memristor Spiking Neural Network Supporting Multiple Learning Rules.
IEEE transactions on neural networks and learning systems(2022)
摘要
Artificial intelligence (AI) is changing the way computing is performed to cope with real-world, ill-defined tasks for which traditional algorithms fail. AI requires significant memory access, thus running into the von Neumann bottleneck when implemented in standard computing platforms. In this respect, low-latency energy-efficient in-memory computing can be achieved by exploiting emerging memristive devices, given their ability to emulate synaptic plasticity, which provides a path to design large-scale brain-inspired spiking neural networks (SNNs). Several plasticity rules have been described in the brain and their coexistence in the same network largely expands the computational capabilities of a given circuit. In this work, starting from the electrical characterization and modeling of the memristor device, we propose a neuro-synaptic architecture that co-integrates in a unique platform with a single type of synaptic device to implement two distinct learning rules, namely, the spike-timing-dependent plasticity (STDP) and the Bienenstock-Cooper-Munro (BCM). This architecture, by exploiting the aforementioned learning rules, successfully addressed two different tasks of unsupervised learning.
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关键词
Neurons,Memristors,Task analysis,Synapses,Integrated circuit modeling,Biological neural networks,Unsupervised learning,Bienenstock-Cooper-Munro (BCM),memristor,resistive memory,spiking neural network (SNN),spike-timing-dependent plasticity (STDP)
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