| 2006 | ICASSP | Multi-Lingual Speaker-Independent Voice User Interface For Mobile Devices. | Juha Iso-Sipil, Marko Moberg, Olli Viikki |
| 2004 | ICASSP | On a practical design of a low complexity speech recognition engine. | Marcel Vasilache, Juha Iso-Sipil, Olli Viikki |
| 2003 | Interspeech | Low memory acoustic models for HMM based speech recognition. | Tommi Lahti, Olli Viikki, Marcel Vasilache |
| 2002 | Interspeech | Multilingual pronunciation modeling for improving multilingual speech recognition. | Jilei Tian, Juha Hkkinen, Olli Viikki |
| 2001 | ICASSP | Speaker- and language-independent speech recognition in mobile communication systems. | Olli Viikki, Imre Kiss, Jilei Tian |
| 2001 | Interspeech | Comparing parameter tying methods for multilingual acoustic modelling. | Mikko Harju, Petri Salmela, Jussi Leppnen, Olli Viikki, Jukka Saarinen |
| 2001 | Interspeech | Speaker adaptation of quantized parameter HMMs. | Marcel Vasilache, Olli Viikki |
| 2000 | ICASSP | Low complexity speaker independent command word recognition in car environments. | Sren Kamaric Riis, Olli Viikki |
| 2000 | ICASSP | Fast decoding in large vocabulary name dialing. | Janne Suontausta, Juha Hkkinen, Olli Viikki |
| 2000 | Interspeech | Multi-resolution front-end for noise robust speech recognition. | Ramalingam Hariharan, Imre Kiss, Olli Viikki, Jilei Tian |
| 2000 | Interspeech | High performance connected digit recognition through gender-dependent acoustic modelling and vocal tract length normalisation. | Ramalingam Hariharan, Olli Viikki |
| 1999 | Interspeech | On combining vocal tract length normalisation and speaker adaptation for noise robust speech recognition. | Ramalingam Hariharan, Olli Viikki |
| 1999 | Interspeech | Robust speaker adaptation of continuous density HMMS using multilayer perceptron network. | Mikko Harju, Petri Salmela, Olli Viikki, Mikko Lehtokangas, Jukka Saarinen |
| 1999 | Interspeech | Hands-free voice activation in noisy car environment. | Juha Iso-Sipil, Kari Laurila, Ramalingam Hariharan, Olli Viikki |
| 1998 | ICASSP | A combination of discriminative and maximum likelihood techniques for noise robust speech recognition. | Kari Laurila, Marcel Vasilache, Olli Viikki |
| 1998 | ICASSP | A recursive feature vector normalization approach for robust speech recognition in noise. | Olli Viikki, David Bye, Kari Laurila |
| 1998 | Interspeech | Incremental on-line speaker adaptation in adverse conditions. | Olli Viikki, Kari Laurila |