ISCA Archive ICSLP 2000
ISCA Archive ICSLP 2000

On-line learning of acoustic and lexical units for domain-independent ASR

Giuseppe Riccardi

We are interested in on-line acquisition of acoustic, lexical and semantic units from spontaneous speech. Traditional ASR techniques require the domain-specific knowledge of acoustic, lexicon data and more importantly the word probability distributions. In this paper we propose an algorithm for unsupervised learning of acoustic and lexical units from out-of-domain speech data. The new lexical units are used for fast adaptation of language model probabilities to a new domain. We show that starting from the Switchboard corpus (lexicon and language model) we learn the most relevant language statistics of the "How May I Help?" task.


Cite as: Riccardi, G. (2000) On-line learning of acoustic and lexical units for domain-independent ASR. Proc. 6th International Conference on Spoken Language Processing (ICSLP 2000), vol. 4, 45-48

@inproceedings{riccardi00_icslp,
  author={Giuseppe Riccardi},
  title={{On-line learning of acoustic and lexical units for domain-independent ASR}},
  year=2000,
  booktitle={Proc. 6th International Conference on Spoken Language Processing (ICSLP 2000)},
  pages={vol. 4, 45-48}
}