Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Chávez, Gustavo"'
Autor:
Gorman, Christopher, Chávez, Gustavo, Ghysels, Pieter, Mary, Théo, Rouet, François-Henry, Li, Xiaoye Sherry
We present new algorithms for the randomized construction of hierarchically semi-separable matrices, addressing several practical issues. The HSS construction algorithms use a partially matrix-free, adaptive randomized projection scheme to determine
Externí odkaz:
http://arxiv.org/abs/1810.04125
Publikováno v:
IPDPS workshops 2018
We present memory-efficient and scalable algorithms for kernel methods used in machine learning. Using hierarchical matrix approximations for the kernel matrix the memory requirements, the number of floating point operations, and the execution time a
Externí odkaz:
http://arxiv.org/abs/1803.10274
We present a robust and scalable preconditioner for the solution of large-scale linear systems that arise from the discretization of elliptic PDEs amenable to rank compression. The preconditioner is based on hierarchical low-rank approximations and t
Externí odkaz:
http://arxiv.org/abs/1712.08872
We present Accelerated Cyclic Reduction (ACR), a distributed-memory fast direct solver for rank-compressible block tridiagonal linear systems arising from the discretization of elliptic operators, developed here for three dimensions. Algorithmic syne
Externí odkaz:
http://arxiv.org/abs/1701.00182
A parallel fast direct solver for rank-compressible block tridiagonal linear systems is presented. Algorithmic synergies between Cyclic Reduction and Hierarchical matrix arithmetic operations result in a solver with $O(N \log^2 N)$ arithmetic complex
Externí odkaz:
http://arxiv.org/abs/1604.00617
Autor:
Chávez, Gustavo, Rockwood, Alyn
Marching surfaces is a method for isosurface extraction and approximation based on a $G^1$ multi-sided patch interpolation scheme. Given a 3D grid of scalar values, an underlying curve network is formed using second order information and cubic Hermit
Externí odkaz:
http://arxiv.org/abs/1502.02139
Publikováno v:
In Journal of Computational and Applied Mathematics 15 December 2018 344:760-781
Autor:
Velázquez-Flores, Miguel Ángel, Sánchez-Chávez, Gustavo, Morales-Lázaro, Sara L., Ruiz Esparza-Garrido, Ruth, Canizales-Ontiveros, Alejandro, Salceda, Rocío
Publikováno v:
Neurochemical Research; Mar2024, Vol. 49 Issue 3, p684-691, 8p
Publikováno v:
In Parallel Computing May 2018 74:65-83