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High-Bit-Efficiency TOPS Optical Tensor Convolutional Accelerator Using Microcombs

delete2025-02-04
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OA
AI
S
Shifan Chen
Y
Yixuan Zheng
Y
Yifu Xu
X
Xiaotian Zhu
S
Sirui Huang
王
王帅 (Shuai Wang)
X
Xiaoyan Xu
X
Xia, Chengzhuo
L
Liu, Zhihui
M
Morandotti, Roberto
C
Chu, Sai T.
L
Little, Brent E.
L
Liu, Yuyang
B
Bai, Yunping
M
Moss, David J.
X
Xu, Xingyuan
X
Xu, Kun *
DOI:10.1002/lpor.202401975delete
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摘要

摘要

En 中文
张量卷积是卷积神经网络中的基本操作,特别是在处理张量方面,张量在现实应用中普遍存在。当前方法通常将张量卷积转换为矩阵乘法,导致数据复制、额外的内存使用和硬件复杂度增加。本文提出了一种高比特效率的光学张量卷积加速器,具有减少数据冗余和降低内存消耗的特点。首先探讨了光学张量卷积加速器的比特效率,通过利用空间维度显著提升了其有效计算能力。因此,该光学张量卷积加速器运行速度超过3 Tera Operations Per Second(TOPS)——据作者所知,这是目前最快的单核光学卷积加速器。其性能在手写数字识别和病理癌症检测任务上得到验证,分别达到93.8%和77%的准确率,与仿真结果高度吻合。该方法同时复用物理维度——波长、时间和空间,并利用光的并行性和高吞吐量,实现了高效的光学张量数据处理,具有显著的计算能力。
Keyword:
tensor convolution
optical convolutional accelerator
image processing

期刊

L
Laser and Photonics Reviews
IF:
10
论文数:
3.7K
被引数:
2.1W

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