期刊
SCIENCE BULLETIN
卷 65, 期 14, 页码 1177-1183出版社
ELSEVIER
DOI: 10.1016/j.scib.2020.03.042
关键词
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资金
- National Key Research and Development Program of China [2017YFA0205700]
- National Natural Science Foundation of China [61927820]
- Zhejiang Lab's International Talent Fund for Young Professionals
Artificial neural networks have dramatically improved the performance of many machine-learning applications such as image recognition and natural language processing. However, the electronic hardware implementations of the above-mentioned tasks are facing performance ceiling because Moore's Law is slowing down. In this article, we propose an optical neural network architecture based on optical scattering units to implement deep learning tasks with fast speed, low power consumption and small footprint. The optical scattering units allow light to scatter back and forward within a small region and can be optimized through an inverse design method. The optical scattering units can implement high-precision stochastic matrix multiplication with mean squared error < 10(-4) and a mere 4x4 mu m(2) footprint. Furthermore, an optical neural network framework based on optical scattering units is constructed by introducing Kernel Matrix, which can achieve 97.1% accuracy on the classic image classification dataset MNIST.
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