@inproceedings{73eda7977c334f67bdc9574c835bddcf,
title = "Incorporating MAP estimation and covariance transform for SVM based speaker recognition",
abstract = "In this paper, we apply Constrained Maximum a Posteriori Linear Regression (CMAPLR) transformation on Universal Background Model (UBM) when characterizing each speaker with a supervector. We incorporate the covariance transformation parameters into the supervector in addition to the mean transformation parameters. Maximum Likelihood Linear Regression (MLLR) covariance transformation is adopted. The auxiliary function maximization involved in Maximum Likelihood (ML) and Maximum a Posteriori (MAP) estimation is also presented. Our experiment on the 2006 NIST Speaker Recognition Evaluation (SRE) corpus shows that the two proposed techniques provide substantial performance improvement.",
keywords = "MAPLR, MLLR, Speaker adaptation, Speaker recognition",
author = "Leung, {Cheung Chi} and Donglai Zhu and Lee, {Kong Aik} and Bin Ma and Haizhou Li",
year = "2010",
month = sep,
language = "English",
series = "Proceedings of the 11th Annual Conference of the International Speech Communication Association, INTERSPEECH 2010",
publisher = "International Speech Communication Association",
pages = "2318--2321",
booktitle = "Proceedings of the 11th Annual Conference of the International Speech Communication Association, INTERSPEECH 2010",
}