Correction to: "Blind maximum likelihood separation of a linear-quadratic mixture"

TL;DR

This paper corrects specific mathematical errors in a previous work on blind source separation of linear-quadratic mixtures, ensuring the accuracy of the gradient computations used in the method.

Contribution

It provides the corrected equations for the gradient calculations in the original blind separation method, improving its correctness and reliability.

Findings

Corrected equations (20) and (17) for the gradient computation

Enhanced accuracy of the blind separation method

Clarified mathematical derivations in the original paper

Abstract

An error occurred in the computation of a gradient in our paper entitled "Blind maximum likelihood separation of a linear-quadratic mixture", presented in ICA'2004. The equations (20) in Appendix and (17) in the text were not correct. The current paper presents the correct version of these equations.