Robust Entropy Based Voice Activity Detection Using Parameter Reconstruction in Noisy Environment. - Hagyong Han; Kwang-Seok Lee; Si-Young Koh; Kang-In Hur (J. Inform. and Commun. Convergence Engineering, 2003)

Parts-Based Feature Extraction of Spectrum of Speech Signal Using Non-Negative Matrix Factorization. - Jeong-Won Park; Chang-Keun Kim; Kwang-Seok Lee; Si-Young Koh; Kang-In Hur (J. Inform. and Commun. Convergence Engineering, 2003)

The Audio Signal Classification System Using Contents Based Analysis. - Kwang-Seok Lee; Young-Sub Kim; Hagyong Han; Kang-In Hur (J. Inform. and Commun. Convergence Engineering, 2007)