BUT language recognition system for NIST 2007 evaluations
Pavel Matějka, Lukáš Burget, Ondřej Glembek, Petr Schwarz, Valiantsina Hubeika, Michal Fapšo, Tomáš Mikolov, Oldřich Plchot, Jaň Černocký · 2008
This paper describes Brno University of Technology (BUT) system for 2007 NIST Language recognition (LRE) evaluation. The system is a fusion of 4 acoustic and 9 phonotactic subsystems. We have investigated several new topics such as discriminatively trained language models in phonotactic systems, and eigen-channel adaptation in model and feature domain in acoustic systems. We also point out the importance of calibration and fusion. All results are presented on NIST 2007 LRE data.