Auto Review: Second Stage Error Detection for Highly Accurate Information Extraction from Phone Conversations

Ayesha Qamar, Arushi Raghuvanshi, Conal Sathi, Youngseo Son


Abstract
Automating benefit verification phone calls saves time in healthcare and helps patients receive treatment faster. It is critical to obtain highly accurate information in these phone calls, as it can affect a patient’s healthcare journey. Given the noise in phone call transcripts, we have a two-stage system that involves a post-call review phase for potentially noisy fields, where human reviewers manually verify the extracted data—a labor-intensive task. To automate this stage, we introduce Auto Review, which significantly reduces manual effort while maintaining a high bar for accuracy. This system, being highly reliant on call transcripts, suffers a performance bottleneck due to automatic speech recognition (ASR) issues. This problem is further exacerbated by the use of domain-specific jargon in the calls. In this work, we propose a second-stage postprocessing pipeline for accurate information extraction. We improve accuracy by using multiple ASR alternatives and a pseudo-labeling approach that does not require manually corrected transcripts. Experiments with general-purpose large language models and feature-based model pipelines demonstrate substantial improvements in the quality of corrected call transcripts, thereby enhancing the efficiency of Auto Review.
Anthology ID:
2025.acl-industry.92
Volume:
Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 6: Industry Track)
Month:
July
Year:
2025
Address:
Vienna, Austria
Editors:
Georg Rehm, Yunyao Li
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1308–1321
Language:
URL:
https://preview.aclanthology.org/landing_page/2025.acl-industry.92/
DOI:
Bibkey:
Cite (ACL):
Ayesha Qamar, Arushi Raghuvanshi, Conal Sathi, and Youngseo Son. 2025. Auto Review: Second Stage Error Detection for Highly Accurate Information Extraction from Phone Conversations. In Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 6: Industry Track), pages 1308–1321, Vienna, Austria. Association for Computational Linguistics.
Cite (Informal):
Auto Review: Second Stage Error Detection for Highly Accurate Information Extraction from Phone Conversations (Qamar et al., ACL 2025)
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PDF:
https://preview.aclanthology.org/landing_page/2025.acl-industry.92.pdf