Zobrazeno 1 - 10
of 237
pro vyhledávání: '"Xie, Pengcheng"'
Autor:
Zhang, Qi, Xie, Pengcheng
Derivative-free optimization (DFO) is a method that does not require the calculation of gradients or higher-order derivatives of the objective function, making it suitable for cases where the objective function is non-differentiable or the computatio
Externí odkaz:
http://arxiv.org/abs/2407.17529
Autor:
Xie, Pengcheng
This paper analyzes the sufficient conditions for distance reduction between minimizers of local nonconvex quadratic approximate functions with diagonal Hessian in the (\ell^2)-norm trust regions after two iterations. Some examples illustrate the the
Externí odkaz:
http://arxiv.org/abs/2310.08603
Autor:
Xie, Pengcheng, Yuan, Ya-xiang
This paper proposes the method 2D-MoSub (2-dimensional model-based subspace method), which is a novel derivative-free optimization (DFO) method based on the subspace method for general unconstrained optimization and especially aims to solve large-sca
Externí odkaz:
http://arxiv.org/abs/2309.14855
Autor:
Xie, Pengcheng, Yuan, Ya-xiang
Derivative-free optimization problems are optimization problems where derivative information is unavailable. The least Frobenius norm updating quadratic interpolation model function is one of the essential under-determined model functions for model-b
Externí odkaz:
http://arxiv.org/abs/2302.12021
Autor:
Xie, Pengcheng, Yuan, Ya-xiang
Derivative-free optimization methods are numerical methods for optimization problems in which no derivative information is used. Such optimization problems are widely seen in many real applications. One particular class of derivative-free optimizatio
Externí odkaz:
http://arxiv.org/abs/2302.12017
Autor:
Xie, Pengcheng, Liu, Jialiang, Liao, Zonggao, Zhou, Qi, Sun, Jiajiu, Liu, Zheyi, Xiong, Huihuang, Wan, Hao
Publikováno v:
In Food Chemistry 1 February 2025 464 Part 1
Autor:
Xie, Pengcheng
Publikováno v:
In Journal of Computational and Applied Mathematics 1 January 2025 453
Autor:
Wang, Xinming, Ma, Yitao, Dang, Kaifang, Zhao, Bing, Chen, Anmin, Yang, Weimin, Xie, Pengcheng
Publikováno v:
In Journal of Manufacturing Processes 15 May 2024 117:145-153
Plasma response to resonant magnetic perturbations near rotation zero-crossing in low torque plasmas
Autor:
Xie, Pengcheng, Sun, Youwen, Liu, Yueqiang, Gu, Shuai, Ma, Qun, Ye, Cheng, Wu, Xuemin, Sheng, Hui
Plasma response to resonant magnetic perturbations (RMPs) near the pedestal top is crucial for accessing edge localized modes (ELMs) suppression in tokamaks. Since radial location of rotation zero-crossing plays a key role in determining the threshol
Externí odkaz:
http://arxiv.org/abs/2104.08511
Autor:
Wang, Huiyan, Liu, Yuchen, Xue, Shuang, Xie, Pengcheng, He, Jianyun, Koval, Olga, Chen, Zhitong, Wang, Ruixue
Publikováno v:
In Surface & Coatings Technology 15 February 2024 477