Zobrazeno 1 - 10
of 5 636
pro vyhledávání: '"Ipsen, A."'
Autor:
Drineas, Petros, Ipsen, Ilse C. F.
Stochastic Rounding is a probabilistic rounding mode that is surprisingly effective in large-scale computations and low-precision arithmetic. Its random nature promotes error cancellation rather than error accumulation, resulting in slower growth of
Externí odkaz:
http://arxiv.org/abs/2410.10517
Autor:
Ipsen, Ilse C. F., Saibaba, Arvind K.
We compare the properties of the stable rank and intrinsic dimension of real and complex matrices to those of the classical rank. Basic proofs and examples illustrate that the stable rank does not satisfy any of the fundamental rank properties, while
Externí odkaz:
http://arxiv.org/abs/2407.21594
Autor:
Garrison, James E., Ipsen, Ilse C. F.
We a present and analyze rpCholesky-QR, a randomized preconditioned Cholesky-QR algorithm for computing the thin QR factorization of real mxn matrices with rank n. rpCholesky-QR has a low orthogonalization error, a residual on the order of machine pr
Externí odkaz:
http://arxiv.org/abs/2406.11751
Motivated by the popularity of stochastic rounding in the context of machine learning and the training of large-scale deep neural network models, we consider stochastic nearness rounding of real matrices $\mathbf{A}$ with many more rows than columns.
Externí odkaz:
http://arxiv.org/abs/2403.12278
Autor:
Kumar, Harshit, Mandal, Sayar, Gupta, Suhasi, Meena, Hemraj, Kadu, Mayur, Kudawla, Rajni, Sharma, Pratibha, Kaur, Indu Pal, Ipsen, John H, Bhatia, Tripta
Soluble alpha-amylases play an important role in the catabolism of polysaccharides. In this work, we show that the enzyme can interact with the lipid membrane and further alter its mechanical properties. Vesicle fluctuation spectroscopy is used for q
Externí odkaz:
http://arxiv.org/abs/2308.00339
We perturb a real matrix $A$ of full column rank, and derive lower bounds for the smallest singular values of the perturbed matrix, in terms of normwise absolute perturbations. Our bounds, which extend existing lower-order expressions, demonstrate th
Externí odkaz:
http://arxiv.org/abs/2303.03547
Autor:
Ipsen, Christine, Kirchner, Kathrin
Publikováno v:
International Journal of Workplace Health Management, 2024, Vol. 17, Issue 3, pp. 197-199.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/IJWHM-06-2024-233
Publikováno v:
BMC Geriatrics, Vol 24, Iss 1, Pp 1-8 (2024)
Abstract Background Hip fracture is very common and it has life-shattering consequences for older persons. After discharge the older persons need help with even basic everyday activities from formal and informal caregivers. In Scandinavia formal care
Externí odkaz:
https://doaj.org/article/fc785811ac5443468a8dca19bf74cabe
We analyse the calibration of BayesCG under the Krylov prior, a probabilistic numeric extension of the Conjugate Gradient (CG) method for solving systems of linear equations with symmetric positive definite coefficient matrix. Calibration refers to t
Externí odkaz:
http://arxiv.org/abs/2208.03885
Publikováno v:
Journal of Obstetrics and Gynaecology, Vol 44, Iss 1 (2024)
Background Lichen sclerosus (LS) is a chronic, inflammatory disease of the genital and extra genital skin, causing pruritus, soreness, pain and dyspareunia. The aim of this study was to investigate whether Low Level Laser Therapy (LLLT) can improve t
Externí odkaz:
https://doaj.org/article/cdb920c58b1741699f811615edc813df