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806 results on '"Liu, Yongqing"'

1. Decomposing Dedekind Numbers: A Polynomial Representation with Powers of 2

Author

Liu, YongQing

Subjects
Mathematics - Combinatorics
Abstract

In this paper, we reveal an internal structure within Dedekind numbers, demonstrating that they can be expressed as polynomials of powers of 2. This discovery is based on innovative concepts and methods, offering a new perspective on the nature of these numbers.

Published
2024

7. Gradient Mask: Lateral Inhibition Mechanism Improves Performance in Artificial Neural Networks

Author

Jiang, Lei, Liu, Yongqing, Xiao, Shihai, and Chua, Yansong

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Lateral inhibitory connections have been observed in the cortex of the biological brain, and has been extensively studied in terms of its role in cognitive functions. However, in the vanilla version of backpropagation in deep learning, all gradients (which can be understood to comprise of both signal and noise gradients) flow through the network during weight updates. This may lead to overfitting. In this work, inspired by biological lateral inhibition, we propose Gradient Mask, which effectively filters out noise gradients in the process of backpropagation. This allows the learned feature information to be more intensively stored in the network while filtering out noisy or unimportant features. Furthermore, we demonstrate analytically how lateral inhibition in artificial neural networks improves the quality of propagated gradients. A new criterion for gradient quality is proposed which can be used as a measure during training of various convolutional neural networks (CNNs). Finally, we conduct several different experiments to study how Gradient Mask improves the performance of the network both quantitatively and qualitatively. Quantitatively, accuracy in the original CNN architecture, accuracy after pruning, and accuracy after adversarial attacks have shown improvements. Qualitatively, the CNN trained using Gradient Mask has developed saliency maps that focus primarily on the object of interest, which is useful for data augmentation and network interpretability.

Published
2022

33. Flow Characteristic of Scroll Compressor with Combined Profile Scroll

Author

Liu, Zhenghui, Chen, Zhongli, Qian, Lijuan, Lin, Jian, Liu, Yongqing, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Han, Qinglong, editor, McLoone, Sean, editor, Peng, Chen, editor, and Zhang, Baolin, editor

Published
2021
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34. Study on Color Gamut of UV Ink-Jet Printing Based on Different Wood Substrates

Author

Liu, Yongqing, Lin, Maohai, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Zhao, Pengfei, editor, Ye, Zhuangzhi, editor, Xu, Min, editor, Yang, Li, editor, Zhang, Linghao, editor, and Zhu, Rengao, editor

Published
2021
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37. Robert Bly's "Seclusion" and Laozi-Zhuangzi's Life Philosophy.

Author

Liu Yongqing

Abstract

Robert Bly's profound identification with the life philosophy and lifestyle of Laozi and Zhuangzi, characterized by "emptiness and tranquility, simplicity, and reclusion" led him to adopt a nihilistic attitude towards the American materialism. Emulating Laozi, Zhuangzi, and ancient Chinese recluse poets, Bly embodied the spirit of "embracing simplicity" in a secluded pastoral life in rural western Minnesota, becoming a poetic dweller of nature. This poetic lifestyle has become the main subject of his poetry, thus constructing poetic discourse system of a serene pastoral life. From the three aspects of writing, living, and consciousness, they demonstrate Bly's systematic acceptance of the "emptiness and tranquility" life philosophy of Laozi and Zhuangzi, the lifestyle and poetic aesthetic values of Chinese recluse poets. [ABSTRACT FROM AUTHOR]

Published
2024

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