1 code implementation • Journal of Neuroscience Methods Volume 288 2017 • Ankit Parekha, Ivan W. Selesnick, Ricardo S.Osorio, Andrew W. Vargad, David M. Rapoport, Indu Ayappa
Using a non-linear signal model, which assumes the input EEG to be the sum of a transient and an oscillatory component, we propose a multichannel transient separation algorithm.
Ranked #4 on Spindle Detection on MASS SS2
no code implementations • 29 Apr 2016 • Ankit Parekh, Ivan W. Selesnick
Further, we show how to set the parameters of the non-convex penalty functions, in order to ensure that the objective function is strictly convex.
no code implementations • 6 Nov 2015 • Ankit Parekh, Ivan W. Selesnick
This letter proposes to estimate low-rank matrices by formulating a convex optimization problem with non-convex regularization.
no code implementations • 24 Sep 2015 • Yin Ding, Ivan W. Selesnick
This paper describes an exponential transient excision algorithm (ETEA).
no code implementations • 4 Apr 2015 • Ankit Parekh, Ivan W. Selesnick
To more accurately estimate non-zero values, we propose the use of a non-convex regularizer, chosen so as to ensure convexity of the objective function.
no code implementations • 13 Oct 2013 • Jun Liu, Ting-Zhu Huang, Ivan W. Selesnick, Xiao-Guang Lv, Po-Yu Chen
Usually, the high-order total variation (HTV) regularizer is an good option except its over-smoothing property.
no code implementations • 23 Aug 2013 • Po-Yu Chen, Ivan W. Selesnick
Convex optimization with sparsity-promoting convex regularization is a standard approach for estimating sparse signals in noise.
no code implementations • 29 Mar 2013 • Po-Yu Chen, Ivan W. Selesnick
This paper addresses signal denoising when large-amplitude coefficients form clusters (groups).
no code implementations • 22 Feb 2013 • Ivan W. Selesnick, Ilker Bayram
For this purpose, this paper describes the design and use of non-convex penalty functions (regularizers) constrained so as to ensure the convexity of the total cost function, F, to be minimized.