.png){kind=icon}
Return
Emulating complex synapses using interlinked proton conductors
.png){kind=icon}
OA
AI
DOI：10.1103/PhysRevApplied.23.014027.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In terms of energy efficiency and computational speed, neuromorphic electronics based on nonvolatile memory devices are expected to be one of most promising hardware candidates for future artificial intelligence (AI). However, catastrophic forgetting, networks rapidly overwriting previously learned weights when learning new tasks, remains a pivotal obstacle in either digital or analog AI chips for unleashing the true power of brainlike computing. To address catastrophic forgetting in the context of online memory storage, a complex synapse model (the Benna-Fusi model) was proposed recently [M. K. Benna and S. Fusi, Nat. Neurosci. 19, 1697 (2016)], the synaptic weight and internal variables of which evolve following diffusion dynamics. In this work, by designing a proton transistor with a series of charge-diffusion-controlled storage components, we have experimentally realized the Benna-Fusi artificial complex synapse. Memory consolidation from coupled storage components is revealed by both numerical simulations and experimental observations. Different memory timescales for the complex synapse are engineered by the diffusion length of charge carriers and the capacity and number of coupled storage components. The advantages of the demonstrated complex synapse for both memory capacity and memory consolidation are revealed by neural network simulations of face-familiarity detection. Our experimental realization of the complex synapse suggests a promising approach to enhance memory capacity and to enable continual learning.
Keywords:
DEEP NEURAL-NETWORKS
Journal
IF:
4.4
Papers:
7.1K
Citations:
2.8W
Organization
Cited Papers
Optoelectronic resistive random access memory for neuromorphic vision sensors.png)
NATURE NANOTECHNOLOGY
NATURE NANOTECHNOLOGYIF34.9
PREAI
ShareSaveShareSaveShareSaveReproducible Ultrathin Ferroelectric Domain Switching for High-Performance Neuromorphic ComputingADVANCED MATERIALS
ADVANCED MATERIALSIF26.8
PREAI
ShareSaveMemristors with diffusive dynamics as synaptic emulators for neuromorphic computingNATURE MATERIALS
OAAI
NATURE MATERIALSIF38.5
OAAIShareSaveShareSave
View more