Paper: NLP on Spoken Documents Without ASR

ACL ID D10-1045
Title NLP on Spoken Documents Without ASR
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2010
Authors

There is considerable interest in interdis- ciplinary combinations of automatic speech recognition (ASR), machine learning, natu- ral language processing, text classification and information retrieval. Many of these boxes, especially ASR, are often based on consid- erable linguistic resources. We would like to be able to process spoken documents with few (if any) resources. Moreover, connect- ing black boxes in series tends to multiply er- rors, especially when the key terms are out-of- vocabulary (OOV). The proposed alternative applies text processing directly to the speech without a dependency on ASR. The method finds long (∼1 sec) repetitions in speech, and clusters them into pseudo-terms (roughly phrases). Document clustering and classi- fication work surprisingly well on pseudo- ter...