期刊
NATURE COMMUNICATIONS
卷 8, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/ncomms15199
关键词
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资金
- Beijing Advanced Innovation Center for Future Chip (ICFC)
- National Key Research and Development Program of China [2016YFA0201803]
- National Hi-tech (R&D) Project of China [2014AA032901]
- NSFC [61674089]
- National Science Foundation Expeditions in Computing [1317470]
- Stanford SystemX Alliance
- Division of Computing and Communication Foundations
- Direct For Computer & Info Scie & Enginr [1317470] Funding Source: National Science Foundation
Conventional hardware platforms consume huge amount of energy for cognitive learning due to the data movement between the processor and the off-chip memory. Brain-inspired device technologies using analogue weight storage allow to complete cognitive tasks more efficiently. Here we present an analogue non-volatile resistive memory (an electronic synapse) with foundry friendly materials. The device shows bidirectional continuous weight modulation behaviour. Grey-scale face classification is experimentally demonstrated using an integrated 1024-cell array with parallel online training. The energy consumption within the analogue synapses for each iteration is 1,000x (20x) lower compared to an implementation using Intel Xeon Phi processor with off-chip memory (with hypothetical on-chip digital resistive random access memory). The accuracy on test sets is close to the result using a central processing unit. These experimental results consolidate the feasibility of analogue synaptic array and pave the way toward building an energy efficient and large-scale neuromorphic system.
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