Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Xu, Ruqing"'
The factorization of skew-symmetric matrices is a critically understudied area of dense linear algebra (DLA), particularly in comparison to that of symmetric matrices. While some algorithms can be adapted from the symmetric case, the cost of algorith
Externí odkaz:
http://arxiv.org/abs/2411.09859
Autor:
Xu, Ruqing
A principal designs an algorithm that generates a publicly observable prediction of a binary state. She must decide whether to act directly based on the prediction or to delegate the decision to an agent with private information but potential misalig
Externí odkaz:
http://arxiv.org/abs/2402.09384
We apply the FLAME methodology to derive algorithms hand in hand with their proofs of correctness for the computation of the $ L T L^T $ decomposition (with and without pivoting) of a skew-symmetric matrix. The approach yields known as well as new al
Externí odkaz:
http://arxiv.org/abs/2311.10700
Autor:
Xu, Ruqing, Dean, Sarah
Algorithms are used to aid human decision makers by making predictions and recommending decisions. Currently, these algorithms are trained to optimize prediction accuracy. What if they were optimized to control final decisions? In this paper, we stud
Externí odkaz:
http://arxiv.org/abs/2303.13712
Matrix libraries often focus on achieving high performance for problems considered to be either "small" or "large", as these two scenarios tend to respond best to different optimization strategies. We propose a unified technique for implementing matr
Externí odkaz:
http://arxiv.org/abs/2302.08417
Publikováno v:
In Genes & Diseases July 2024 11(4)
Autor:
Xu, Ruqing, Wu, Yue, Xiang, Xia, Lv, Xiaoqin, He, Miao, Xu, Chang, Lai, Guoqi, Xiang, Tingxiu
Publikováno v:
In Virus Research March 2024 341
In this article, we present a high performance, portable and well templated implementation for computing and fast-updating Pfaffian and inverse of an even-ranked skew-symmetric (antisymmetric) matrix. It is achieved with a skew-symmetric, blocked var
Externí odkaz:
http://arxiv.org/abs/2105.13098
Publikováno v:
Phys. Rev. Research 3, 023048 (2021)
We show a way to perform the canonical renormalization group (RG) prescription in tensor space: write down the tensor RG equation, linearize it around a fixed-point tensor, and diagonalize the resulting linearized RG equation to obtain scaling dimens
Externí odkaz:
http://arxiv.org/abs/2102.08136
Autor:
Mason, Daniel R., Das, Suchandrima, Derlet, Peter M., Dudarev, Sergei L., London, Andrew, Yu, Hongbing, Phillips, Nicholas W., Yang, David, Mizohata, Kenichiro, Xu, Ruqing, Hofmann, Felix
Combining spatially resolved X-ray Laue diffraction with atomic-scale simulations, we observe how ion-irradiated tungsten undergoes a series of non-linear structural transformations with increasing irradiation exposure. Nanoscale defect-induced defor
Externí odkaz:
http://arxiv.org/abs/2007.15376