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1,751 results on '"Yang, Jianguo"'

2. A Study on Semantic Shift of Uncivilized Words in Bullet-Screen Comments

Author

Fan, Juanjuan, Yang, Jianguo, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Dong, Minghui, editor, Hong, Jia-Fei, editor, Lin, Jingxia, editor, and Jin, Peng, editor

Published
2024
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8. Efficient Training of the Memristive Deep Belief Net Immune to Non-Idealities of the Synaptic Devices

Author

Wang, Wei, Hoffer, Barak, Greenberg-Toledo, Tzofnat, Li, Yang, Zou, Minhui, Herbelin, Eric, Ronen, Ronny, Xu, Xiaoxin, Zhao, Yulin, Yang, Jianguo, and Kvatinsky, Shahar

Subjects
Electrical Engineering and Systems Science - Signal Processing, Condensed Matter - Disordered Systems and Neural Networks, Electrical Engineering and Systems Science - Systems and Control, Physics - Applied Physics
Abstract

The tunability of conductance states of various emerging non-volatile memristive devices emulates the plasticity of biological synapses, making it promising in the hardware realization of large-scale neuromorphic systems. The inference of the neural network can be greatly accelerated by the vector-matrix multiplication (VMM) performed within a crossbar array of memristive devices in one step. Nevertheless, the implementation of the VMM needs complex peripheral circuits and the complexity further increases since non-idealities of memristive devices prevent precise conductance tuning (especially for the online training) and largely degrade the performance of the deep neural networks (DNNs). Here, we present an efficient online training method of the memristive deep belief net (DBN). The proposed memristive DBN uses stochastically binarized activations, reducing the complexity of peripheral circuits, and uses the contrastive divergence (CD) based gradient descent learning algorithm. The analog VMM and digital CD are performed separately in a mixed-signal hardware arrangement, making the memristive DBN high immune to non-idealities of synaptic devices. The number of write operations on memristive devices is reduced by two orders of magnitude. The recognition accuracy of 95%~97% can be achieved for the MNIST dataset using pulsed synaptic behaviors of various memristive synaptic devices.

Published
2022
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44. A highly CMOS compatible hafnia-based ferroelectric diode.

Author

Luo, Qing, Cheng, Yan, Yang, Jianguo, Cao, Rongrong, Ma, Haili, Yang, Yang, Huang, Rong, Wei, Wei, Zheng, Yonghui, Gong, Tiancheng, Yu, Jie, Xu, Xiaoxin, Yuan, Peng, Li, Xiaoyan, Tai, Lu, Yu, Haoran, Shang, Dashan, Liu, Qi, Yu, Bing, Ren, Qiwei, Lv, Hangbing, and Liu, Ming

Abstract

Memory devices with high speed and high density are highly desired to address the 'memory wall' issue. Here we demonstrated a highly scalable, three-dimensional stackable ferroelectric diode, with its rectifying polarity modulated by the polarization reversal of Hf0.5Zr0.5O2 films. By visualizing the hafnium/zirconium lattice order and oxygen lattice order with atomic-resolution spherical aberration-corrected STEM, we revealed the correlation between the spontaneous polarization of Hf0.5Zr0.5O2 film and the displacement of oxygen atom, thus unambiguously identified the non-centrosymmetric Pca21 orthorhombic phase in Hf0.5Zr0.5O2 film. We further implemented this ferroelectric diode in an 8 layers 3D array. Operation speed as high as 20 ns and robust endurance of more than 109 were demonstrated. The built-in nonlinearity of more than 100 guarantees its self-selective property that eliminates the need for external selectors to suppress the leakage current in large array. This work opens up new opportunities for future memory hierarchy evolution.

Published
2020

45. Fault Diagnosis and Isolation for Diesel Engine Combustion Chambers Based on Autoencoder and BP Neural Network

Author

Yu, Yonghua, Hu, Jia, Yang, Jianguo, Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, di Mare, Francesca, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, Pinto, João Onofre Pereira, editor, Kimpara, Marcio Luiz Magri, editor, Reis, Renata Rezende, editor, Seecharan, Turuna, editor, Upadhyaya, Belle R., editor, and Amadi-Echendu, Joe, editor

Published
2022
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50. Immunogenicity and protective effects of recombinant bivalent COVID-19 vaccine in mice and rhesus macaques

Author

Liu, Yuying, Zhang, Aijing, Wang, Yan, Yang, Jianguo, Yin, Fei, Wu, Shuming, Zhang, Yao, Jiang, Xulin, Zhu, Jiaton, Gao, Wenshuang, Yang, Xiufen, Wen, Hongyan, Guo, Qian, Chen, Xiao, Zhang, Hongcai, Shen, Ercui, Yang, Zengmin, Li, Yakun, Chen, Dan, Li, Ling, Guo, Jiaping, Du, Xiaoli, Shi, Yazheng, Fu, Sijia, Zhang, Haijiang, and Liu, Yongjiang

Published
2023
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