A combination of discriminative and maximum likelihood techniques for noise robust speech recognition. - Kari Laurila; Marcel Vasilache; Olli Viikki (ICASSP, 1998)

A recursive feature vector normalization approach for robust speech recognition in noise. - Olli Viikki; David Bye; Kari Laurila (ICASSP, 1998)

Incremental on-line speaker adaptation in adverse conditions. - Olli Viikki; Kari Laurila (ICSLP, 1998)

Cepstral domain segmental feature vector normalization for noise robust speech recognition. - Olli Viikki; Kari Laurila (Speech Commun., 1998)

On combining vocal tract length normalisation and speaker adaptation for noise robust speech recognition. - Ramalingam Hariharan; Olli Viikki (EUROSPEECH, 1999)

Robust speaker adaptation of continuous density HMMS using multilayer perceptron network. - Mikko Harju; Petri Salmela; Olli Viikki; Mikko Lehtokangas; Jukka Saarinen (EUROSPEECH, 1999)

Hands-free voice activation in noisy car environment. - Juha Iso-Sipilä; Kari Laurila; Ramalingam Hariharan; Olli Viikki (EUROSPEECH, 1999)

Low complexity speaker independent command word recognition in car environments. - Søren Kamaric Riis; Olli Viikki (ICASSP, 2000)

Fast decoding in large vocabulary name dialing. - Janne Suontausta; Juha Häkkinen; Olli Viikki (ICASSP, 2000)

Multi-resolution front-end for noise robust speech recognition. - Ramalingam Hariharan; Imre Kiss; Olli Viikki; Jilei Tian (INTERSPEECH, 2000)

High performance connected digit recognition through gender-dependent acoustic modelling and vocal tract length normalisation. - Ramalingam Hariharan; Olli Viikki (INTERSPEECH, 2000)

On Integrating Tonal Information Into Chinese Speech Recognition. - Xia Wang; Yuan Dong; Juha Iso-Sipilä; Olli Viikki (ISCSLP, 2000)

Speaker- and language-independent speech recognition in mobile communication systems. - Olli Viikki; Imre Kiss; Jilei Tian (ICASSP, 2001)

Comparing parameter tying methods for multilingual acoustic modelling. - Mikko Harju; Petri Salmela; Jussi Leppänen; Olli Viikki; Jukka Saarinen (INTERSPEECH, 2001)

Speaker adaptation of quantized parameter HMMs. - Marcel Vasilache; Olli Viikki (INTERSPEECH, 2001)

Multilingual pronunciation modeling for improving multilingual speech recognition. - Jilei Tian; Juha Häkkinen; Olli Viikki (INTERSPEECH, 2002)

An integrated study of speaker normalisation and HMM adaptation for noise robust speaker-independent speech recognition. - Ramalingam Hariharan; Olli Viikki (Speech Commun., 2002)

Low memory acoustic models for HMM based speech recognition. - Tommi Lahti; Olli Viikki; Marcel Vasilache (INTERSPEECH, 2003)

On a practical design of a low complexity speech recognition engine. - Marcel Vasilache; Juha Iso-Sipilä; Olli Viikki (ICASSP (5), 2004)

Multi-Lingual Speaker-Independent Voice User Interface For Mobile Devices. - Juha Iso-Sipilä; Marko Moberg; Olli Viikki (ICASSP (1), 2006)