Papers › Unsupervised Speech Recognition with N-Skipgram and Positional Unigram Matching

Unsupervised Speech Recognition with N-Skipgram and Positional Unigram Matching

3 Oct 2023arXiv:2310.02382archive 2025-07-28

Liming Wang, Mark Hasegawa-Johnson, Chang D. Yoo

Training unsupervised speech recognition systems presents challenges due to GAN-associated instability, misalignment between speech and text, and significant memory demands. To tackle these challenges, we introduce a novel ASR system, ESPUM. This system harnesses the power of lower-order N-skipgrams (up to N=3) combined with positional unigram statistics gathered from a small batch of samples. Evaluated on the TIMIT benchmark, our model showcases competitive performance in ASR and phoneme segmentation tasks. Access our publicly available code at https://github.com/lwang114/GraphUnsupASR.

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