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arXiv:2611.11497 · v1

TID System for Speech-COSER Challenge 2026: ASR Track

Fernando LópezJordi Luque
cs.CLcs.AI
首次提交 2026-11-09 00:50
版本更新 2026-11-09 00:50
雷达观测 2026-11-10 12:16
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摘要

We describe the system submitted by Telefónica Innovación Digital to the Speech-COSER Challenge 2026, which features spontaneous speech from elderly speakers recorded in rural Spain. For ASR, we perform CTC-based pseudo-forced alignment scores audio-text match quality to guide a two-stage LoRA curriculum, followed by post-hoc magnitude pruning of the LoRA matrices to enhance generalization. An ensemble of seven systems combined via ROVER achieves 36.25\% unnormalized and 22.17\% normalized WER.

作者备注：TID system for Speech-COSER Challenge 2026

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v1 · 2026-11-09 00:50 · 最新观测版本

TID System for Speech-COSER Challenge 2026: ASR Track

We describe the system submitted by Telefónica Innovación Digital to the Speech-COSER Challenge 2026, which features spontaneous speech from elderly speakers recorded in rural Spain. For ASR, we perform CTC-based pseudo-forced alignment scores audio-text match quality to guide a two-stage LoRA curriculum, followed by post-hoc magnitude pruning of the LoRA matrices to enhance generalization. An ensemble of seven systems combined via ROVER achieves 36.25\% unnormalized and 22.17\% normalized WER.

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