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Masking loss impact on leakage in low-overlap regions

Investigate whether the auxiliary masking loss in SURT primarily reduces leakage-related errors in low-overlap conditions, thereby lowering insertion and deletion error rates.

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Background

Adding a masking loss improved SURT’s performance the most in low-overlap conditions, contrary to expectation. The authors hypothesize this reflects reduced leakage errors when overlap is sparse.

Validating this conjecture would help attribute gains from the masking loss to specific error modes and optimize its use.

References

We conjecture that this may be a result of fewer leakage-related errors in low overlap regions.

— Listening to Multi-talker Conversations: Modular and End-to-end Perspectives (2402.08932 - Raj, 14 Feb 2024) in Chapter 6 (Streaming Unmixing and Recognition Transducers), Section “Effect of auxiliary objectives”