Example-Based Speech Recognition Using Formulaic Phrases

Watkins, Christopher and Cox, Stephen (2009) Example-Based Speech Recognition Using Formulaic Phrases. In: 10th Annual Conference of the International Speech Communication Association (INTERSPEECH), 2009-09-06 - 2009-09-10.

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In this paper, we describe the design of an ASR system that is based on identifying and extracting formulaic phrases from a corpus and then, rather than building statistical models of them, performing example-based recognition of these phrases. We describe a method for combining formulaic phrases into a bigram language model that results in a 13% decrease in WER on a monophone HMM recogniser over the baseline. We show that using this model with phrase templates in the example-based recogniser gives a significant improvement in WER compared to word templates, but performance still falls short of the HMM recogniser. We also describe an LDA decision tree classifier that reduces the search space of the DTW decoder by 40% while at the same time decreasing WER.

Item Type: Conference or Workshop Item (Paper)
Faculty \ School: Faculty of Science > School of Computing Sciences
UEA Research Groups: Faculty of Science > Research Groups > Interactive Graphics and Audio
Faculty of Science > Research Groups > Smart Emerging Technologies
Depositing User: Nicola Talbot
Date Deposited: 14 Mar 2011 09:42
Last Modified: 22 Apr 2023 02:43
URI: https://ueaeprints.uea.ac.uk/id/eprint/26042

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