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arXiv · 2312.07136

Robust End-to-End Diarization with Domain Adaptive Training and Multi-Task Learning

Ivan Fung·Lahiru Samarakoon·Samuel J. Broughton
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Abstract

Due to the scarcity of publicly available diarization data, the model performance can be improved by training a single model with data from different domains. In this work, we propose to incorporate domain information to train a single end-to-end diarization model for multiple domains. First, we employ domain adaptive training with parameter-efficient adapters for on-the-fly model reconfiguration. Second, we introduce an auxiliary domain classification task to make the diarization model more domain-aware. For seen domains, the combination of our proposed methods reduces the absolute DER from 17.66% to 16.59% when compared with the baseline. During inference, adapters from ground-truth domains are not available for unseen domains. We demonstrate our model exhibits a stronger generalizability to unseen domains when adapters are removed. For two unseen domains, this improves the DER performance from 39.91% to 23.09% and 25.32% to 18.76% over the baseline, respectively.

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Ivan Fung, Lahiru Samarakoon, Samuel J. Broughton. 2023-12-12. Robust End-to-End Diarization with Domain Adaptive Training and Multi-Task Learning. https://arxiv.org/abs/2312.07136

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