MLP network for enhancement of noisy MFCC vectors. - Hemmo Haverinen; Petri Salmela; Juha Häkkinen; Mikko Lehtokangas; Jukka Saarinen (EUROSPEECH, 1999)

On-line parametric histogram equalization techniques for noise robust embedded speech recognition. - Hemmo Haverinen; Imre Kiss (INTERSPEECH, 2003)