no code implementations • 18 Feb 2021 • Zhengjian Bai, Huaian Diao, Hongyu Liu, Qingle Meng
We consider the time-harmonic elastic wave scattering from a general (possibly anisotropic) inhomogeneous medium with an embedded impenetrable obstacle.
Analysis of PDEs 35B34, 74E99, 74J20
no code implementations • NeurIPS 2019 • Huaian Diao, Rajesh Jayaram, Zhao Song, Wen Sun, David P. Woodruff
For input $\mathcal{A}$ as above, we give $O(\sum_{i=1}^q \text{nnz}(A_i))$ time algorithms, which is much faster than computing $\mathcal{A}$.
1 code implementation • NeurIPS 2019 • Huaian Diao, Zhao Song, David P. Woodruff, Xin Yang
In the total least squares problem, one is given an $m \times n$ matrix $A$, and an $m \times d$ matrix $B$, and one seeks to "correct" both $A$ and $B$, obtaining matrices $\hat{A}$ and $\hat{B}$, so that there exists an $X$ satisfying the equation $\hat{A}X = \hat{B}$.
no code implementations • 27 Dec 2017 • Huaian Diao, Zhao Song, Wen Sun, David P. Woodruff
That is, TensorSketch only provides input sparsity time for Kronecker product regression with respect to the $2$-norm.