Results 61 to 70 of about 9,842 (165)
Convergence and Rate Analysis of Neural Networks for Sparse Approximation
, 2012 We present an analysis of the Locally Competitive Algorithm (LCA), a Hopfield-style neural network that efficiently solves sparse approximation problems (e.g., approximating a vector from a dictionary using just a few non-zero coefficients).
Balavoine, Aurèle +2 more
core +1 more source
Structural Feature Selection in Common Spatial Patterns Using Adaptive Sparse Group Lasso
CAAI Transactions on Intelligence Technology, Volume 11, Issue 2, Page 367-384, April 2026.ABSTRACT With the advancement of brain–computer interfaces (BCI), motor imagery (MI) electroencephalogram (EEG) decoding can greatly benefit from spatial filtering features derived from common spatial patterns (CSP). However, CSP‐based features often exhibit high redundancy and intersubject variability.
Yadi Wang +4 more
wiley +1 more source
Periodic solutions for a differential inclusion problem involving the p(t)-Laplacian
Advances in Nonlinear Analysis, 2020 In the present paper, we consider the nonlinear periodic systems involving variable exponent driven by p(t)-Laplacian with a locally Lipschitz nonlinearity.
Chen Peng, Tang Xianhua
doaj +1 more source
Nonsmooth frameworks for an extended Budyko model
, 2017 In latitude-dependent energy balance models, ice-free and ice-covered conditions form physical boundaries of the system. With carbon dioxide treated as a bifurcation parameter, the resulting bifurcation diagram is nonsmooth with curves of equilibria and ...
Barry, Anna M. +2 more
core +1 more source
CAAI Transactions on Intelligence Technology, Volume 11, Issue 2, Page 498-513, April 2026.ABSTRACT A formation inversion algorithm with real‐time performance and accuracy is crucial for natural gamma logging while drilling (LWD). However, traditional inversion algorithms are often limited by high computational resource consumption and insufficient accuracy.
Juntao Liu +4 more
wiley +1 more source
Two-parameter nonsmooth grazing bifurcations of limit cycles: classification and open problems [PDF]
, 2005 This paper proposes a strategy for the classification of codimension-two grazing bifurcations of limit cycles in piecewise smooth systems of ordinary differential equations.
Champneys, AR +7 more
core +1 more source
Macroscopic Market Making Games
Mathematical Finance, Volume 36, Issue 2, Page 352-373, April 2026.ABSTRACT Building on the macroscopic market making framework as a control problem, this paper investigates its extension to stochastic games. In the context of price competition, each agent is benchmarked against the best quote offered by the others. We begin with the linear case.
Ivan Guo, Shijia Jin
wiley +1 more source
The Influence of Grain Crushing and Pore Collapse on the Formation of Faults
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.Abstract During an earthquake, slip occurs in a localized shear zone that features a heavily granulated fault core that can be characterized as a shear band. We study the formation of this fault core in a granular rock such as sandstone by developing a model of crushable granular media within the framework of Breakage Mechanics. This model accounts for
N. A. Collins‐Craft +3 more
wiley +1 more source
Splitting methods with variable metric for KL functions
, 2013 We study the convergence of general abstract descent methods applied to a lower semicontinuous nonconvex function f that satisfies the Kurdyka-Lojasiewicz inequality in a Hilbert space.
Frankel, Pierre +2 more
core +1 more source
A Tutorial on Optimal Dynamic Treatment Regimes
Statistics in Medicine, Volume 45, Issue 3-5, February 2026.ABSTRACT A dynamic treatment regime (DTR) is a sequence of treatment decision rules tailored to an individual's evolving status over time. In precision medicine, much focus has been placed on finding an optimal DTR which, if followed by everyone in the population, would yield the best outcome on average; and extensive investigations have been conducted
Chunyu Wang, Brian D. M. Tom
wiley +1 more source