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603 results on '"Guo, Hongliang"'

59. A Sparse Neural Network-Based Control Method for Saturated Nonlinear Affine Systems.

Author

Zhang, Jing, Yin, Baoqun, Huo, Jianwen, Guo, Hongliang, and Li, Zhan

Subjects
NONLINEAR systems
Abstract

Saturated nonlinear affine systems are widely encountered in many engineering fields. Currently, most control methods on saturated nonlinear affine systems are not specifically designed based on sparsity-based control methodologies, and they might require sparse identification at the beginning stage and applying tracking control afterwards. In this paper, a sparse neural network (SNN)-based control method from an lp-norm (1 ≤ p < 2) optimization perspective is proposed for saturated nonlinear affine systems by taking advantage of the nice properties of primal dual neural networks for optimization. In particular, when p = 1 , a new alternative controller based on SNN is derived, encountering computational difficulties distinct from those of another solution set in the basic dual neural network. The convergence properties of such SNN-based controllers are investigated and analyzed to find a control solution. Five illustrative examples further are shown to demonstrate the efficiency of the proposed SNN-based control method for tracking the desired references of saturated nonlinear affine systems. In the practical application scenario involving the UR5 robot control, the trajectory's average errors are consistently confined to a minimal magnitude of 10−4 m. These findings substantiate the efficacy of the SNN-based control approach proposed for precise tracking control in saturated nonlinear affine systems. [ABSTRACT FROM AUTHOR]

Published
2024
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60. Multi-strategy augmented Harris Hawks optimization for feature selection.

Author

Zhao, Zisong, Yu, Helong, Guo, Hongliang, and Chen, Huiling

Subjects
FEATURE selection, OPTIMIZATION algorithms, GLOBAL optimization, INFORMATION sharing, COMMUNICATION strategies, TECHNOLOGY convergence
Abstract

In the context of increasing data scale, contemporary optimization algorithms struggle with cost and complexity in addressing the feature selection (FS) problem. This paper introduces a Harris hawks optimization (HHO) variant, enhanced with a multi-strategy augmentation (CXSHHO), for FS. The CXSHHO incorporates a communication and collaboration strategy (CC) into the baseline HHO, facilitating better information exchange among individuals, thereby expediting algorithmic convergence. Additionally, a directional crossover (DX) component refines the algorithm's ability to thoroughly explore the feature space. Furthermore, the soft-rime strategy (SR) broadens population diversity, enabling stochastic exploration of an extensive decision space and reducing the risk of local optima entrapment. The CXSHHO's global optimization efficacy is demonstrated through experiments on 30 functions from CEC2017, where it outperforms 15 established algorithms. Moreover, the paper presents a novel FS method based on CXSHHO, validated across 18 varied datasets from UCI. The results confirm CXSHHO's effectiveness in identifying subsets of features conducive to classification tasks. [ABSTRACT FROM AUTHOR]

Published
2024
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77. Robust performance of a novel stool DNA test of methylated SDC2 for colorectal cancer detection: a multicenter clinical study

Author

Wang, Jianping, Liu, Side, Wang, Hui, Zheng, Lei, Zhou, Changchun, Li, Guoxin, Huang, Rongkang, Wang, Huaiming, Li, Chujun, Fan, Xinjuan, Fu, Xinhui, Wang, Xinying, Guo, Hongliang, Guan, Jie, Sun, Yanlai, Song, Xilin, Li, Zengjun, Mu, Dianbin, Sun, Jujie, Liu, Xianglin, Qi, Yan, Niu, Feng, Chen, Chunhua, Wu, Xiaolin, Wang, Xianshu, Song, Xianrang, and Zou, Hongzhi

Published
2020
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82. Analysis and Research of K-means Algorithm in Soil Fertility Based on Hadoop Platform

Author

Chen, Guifen, Yang, Yuqin, Guo, Hongliang, Sun, Xionghui, Chen, Hang, Cai, Lixia, Rannenberg, Kai, Editor-in-chief, Sakarovitch, Jacques, Series editor, Goedicke, Michael, Series editor, Tatnall, Arthur, Series editor, Neuhold, Erich J., Series editor, Pras, Aiko, Series editor, Tröltzsch, Fredi, Series editor, Pries-Heje, Jan, Series editor, Whitehouse, Diane, Series editor, Reis, Ricardo, Series editor, Furnell, Steven, Series editor, Furbach, Ulrich, Series editor, Gulliksen, Jan, Series editor, Rauterberg, Matthias, Series editor, Li, Daoliang, editor, and Chen, Yingyi, editor

Published
2015
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