| 1991 | Interspeech | Computer-aided, voice-based, medical report preparation: an application to radiology. | Roberto Billi, P. Buttafava, P. De Stefani, M. Gamba, D. Voltolini |
| 1991 | Interspeech | Prototype systems for large-vocabulary speech recognition: polyglot and spicos. | Hermann Ney, Roberto Billi |
| 1990 | Interspeech | POLYGLOT: multilingual speech recognition and synthesis. | V. Vittorelli, Gilles Adda, Roberto Billi, Lou Boves, Mervyn A. Jack, Enrico Vivalda |
| 1989 | Interspeech | A pc-based very large vocabulary isolated word speech recognition system. | Roberto Billi, G. Arman, D. Cericola, G. Massia, M. J. Mollo, F. Tafini, G. Varese, V. Vittorelli |
| 1989 | Interspeech | Architecture and implementation of the olivetti PC-based very large vocabulary isolated word speech recognition system. | P. Buttafava, Roberto Billi, W. Digiampietro, G. Massia, V. Vittorelli |
| 1986 | ICASSP | Word preselection for large vocabulary speech recognition. | Roberto Billi, G. Massia, F. Nesti |
| 1983 | ICASSP | Experimental comparison among data compression techniques in isolated word recognition. | Roberto Pieraccini, Roberto Billi |
| 1982 | ICASSP | Vector quantization and Markov source models applied to speech recognition. | Roberto Billi |
| 1980 | ICASSP | An identification method for objective quality measurements on speech waveform coders. | Roberto Billi, Carlo Scagliola |