Nonstationary environment compensation based on sequential estimation

Download PDF
Open Webpage

Nam Soo Kim

Published: 1998, Last Modified: 09 Jan 2026IEEE Signal Process. Lett. 1998EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Sequential approaches are proposed to compensate for the effects of the nonstationary environment for robust speech recognition. Unlike the batch approaches, the proposed methods derive a different parameter estimate for each time using the sequential expectation maximization (EM) algorithm. Moreover, we also propose the forward-backward estimation scheme as an improvement of the sequential parameter estimation.