Results 31 to 40 of about 118,678 (124)

Convergence and Stability Improvement of Quasi-Newton Methods by Full-Rank Update of the Jacobian Approximates

AppliedMath
A system of simultaneous multi-variable nonlinear equations can be solved by Newton’s method with local q-quadratic convergence if the Jacobian is analytically available.
Peter Berzi
doaj   +1 more source

On Quasi-Newton Forward--Backward Splitting: Proximal Calculus and Convergence [PDF]

, 2018
We introduce a framework for quasi-Newton forward--backward splitting algorithms (proximal quasi-Newton methods) with a metric induced by diagonal $\pm$ rank-$r$ symmetric positive definite matrices.
Becker, Stephen, Fadili, Jalal, Ochs, Peter   +2 more
core   +1 more source

Stabilized material point methods for coupled large deformation and fluid flow in porous materials

, 2019
The material point method (MPM) has been increasingly used for the simulation of large deformation processes in fluid-infiltrated porous materials. For undrained poromechanical problems, however, standard MPMs are numerically unstable because they use ...
Choo, Jinhyun, Zhao, Yidong
core   +2 more sources

An inverse Sturm-Liouville problem with a fractional derivative [PDF]

, 2012
In this paper, we numerically investigate an inverse problem of recovering the potential term in a fractional Sturm-Liouville problem from one spectrum.
Bangti Jin, Borg, Bouchaud, Brunner, Chadan, Cheng, Diethelm, Djrbashian, Djrbashian, Hochstadt, Kilbas, Lin, Liu, Lowe, Meerschaert, Metzler, Metzler, Metzler, Nahušev, Podlubny, Popov, Rossikhin, Rundell, Rundell, Röhrl, Sakamoto, Schneider, Sedletskiı˘, Seybold, Shlesinger, William Rundell, Yamamoto, Zheng   +32 more
core   +2 more sources

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

Advanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source

Fast stable direct fitting and smoothness selection for Generalized Additive Models [PDF]

, 2007
Existing computationally efficient methods for penalized likelihood GAM fitting employ iterative smoothness selection on working linear models (or working mixed models).
Akaike H., Anderson E., Bowman A. W., Brezger A., Dennis J. E., Dongarra J. J., Fahrmeir L., Gill P. E., Golub G. H., Green P. J., Gu C, Gu C., Hastie T., Hastie T., McCullagh P., Parker R. L., Pinheiro J. C., R Development Core Team, Ramsay T., Ruppert D., Stone M., Wahba G., Wahba G., Watkins D. S., Wood S. N., Xiang D.   +25 more
core   +3 more sources

Water‐Stable Paper‐Based Laser‐Induced Graphene With Asymmetric Water Adhesion and Wettability

Advanced Materials Interfaces, EarlyView.
Paper‐based electronics are attractive for sustainable and disposable devices, but often fail in wet environments. By introducing Parafilm into cellulose paper combined with laser conversion, two graphene surfaces with different water interactions are created.
Lingyin Meng, Danfeng Cao, Ario Jafari, Mats Eriksson   +3 more
wiley   +1 more source

Reconstruction of high-resolution image from movie frames. [PDF]

, 2003
by Ling Kai Tung.Thesis (M.Phil.)--Chinese University of Hong Kong, 2003.Includes bibliographical references (leaves 44-45).Abstracts in English and Chinese.Chapter 1 --- Introduction --- p.7Chapter 2 --- Fundamentals --- p.9Chapter 2.1 --- Digital ...

core  

On the construction of probabilistic Newton-type algorithms

, 2017
It has recently been shown that many of the existing quasi-Newton algorithms can be formulated as learning algorithms, capable of learning local models of the cost functions.
Schön, Thomas B., Wills, Adrian G.
core   +1 more source

Materials for Suppressed Triplet‐Polaron Quenching in Efficient and Long‐Lifetime Phosphorescent OLEDs

Advanced Optical Materials, EarlyView.
We performed a computational screening of phosphorescent emitters and charge transporters for OLEDs to identify combinations that minimize triplet‐polaron quenching, a major cause of efficiency loss and short operational lifetimes, especially in blue OLEDs. Our results reveal key design rules and highlight emitter‐transporter pairs that strongly reduce
Clint van Hoesel, Reinder Coehoorn, Peter A. Bobbert   +2 more
wiley   +1 more source