Research Output per year

## Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

- 1 Similar Profiles

Factorization
Engineering & Materials Science

Rounding error
Mathematics

Condition number
Mathematics

Error Analysis
Mathematics

QR Algorithm
Mathematics

Cholesky
Mathematics

Cholesky factorisation
Mathematics

Orthogonality
Mathematics

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## Research Output 2014 2015

## Roundoff error analysis of the Cholesky QR2 algorithm

Yamamoto, Y., Nakatsukasa, Y., Yanagisawa, Y. & Fukaya, T., 2015, In : Electronic Transactions on Numerical Analysis. 44, p. 306-326 21 p.Research output: Contribution to journal › Article

QR Algorithm

Cholesky

Rounding error

Condition number

Orthogonality

5
Citations
(Scopus)

## CholeskyQR2: A Simple and Communication-Avoiding Algorithm for Computing a Tall-Skinny QR Factorization on a Large-Scale Parallel System

Fukaya, T., Nakatsukasa, Y., Yanagisawa, Y. & Yamamoto, Y., 2014,*Proceedings of ScalA 2014: 5th Workshop on Latest Advances in Scalable Algorithms for Large-Scale Systems - held in conjunction with SC 2014: The International Conference for High Performance Computing, Networking, Storage and Analysis.*Institute of Electrical and Electronics Engineers Inc., p. 31-38 8 p. 7016731

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Factorization

Communication

Costs

Experiments

3
Citations
(Scopus)

## Convergence analysis of an algorithm for accurate inverse Cholesky factorization

Yanagisawa, Y., Ogita, T. & Oishi, S., 2014 Nov 1, In : Japan Journal of Industrial and Applied Mathematics. 31, 3, p. 461-482 22 p.Research output: Contribution to journal › Article

Cholesky factorisation

Factorization

Convergence Analysis

Matrix Factorization

Inverse matrix