Prediction-Augmented Generation for Automatic Diagnosis Tasks

Chan-Yang Ju, Dong-Ho Lee


Abstract
Most Large language models (LLMs) adopt an autoregressive architecture, predicting the next word token based on the preceding context. While this approach is robust for language generation tasks such as writing and summarization, it has limitations for high-level reasoning tasks, such as prediction and decision-making. To overcome these limitations, we introduce a new method called Prediction-Augmented Generation (PAG). PAG can improve the generation quality and predictive accuracy of large language models in inference-driven tasks by integrating task-specific predictive models as external tools, enabling more structured and precise reasoning. Moreover, our method does not simply copy the inferences of a predictive model, but improves the inference results with knowledge from the large language model to create better predictions. We comprehensively evaluate our proposed method on diverse datasets for automatic diagnosis tasks requiring extensive domain knowledge and advanced reasoning.
Anthology ID:
2025.findings-acl.732
Volume:
Findings of the Association for Computational Linguistics: ACL 2025
Month:
July
Year:
2025
Address:
Vienna, Austria
Editors:
Wanxiang Che, Joyce Nabende, Ekaterina Shutova, Mohammad Taher Pilehvar
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
14225–14246
Language:
URL:
https://preview.aclanthology.org/display_plenaries/2025.findings-acl.732/
DOI:
Bibkey:
Cite (ACL):
Chan-Yang Ju and Dong-Ho Lee. 2025. Prediction-Augmented Generation for Automatic Diagnosis Tasks. In Findings of the Association for Computational Linguistics: ACL 2025, pages 14225–14246, Vienna, Austria. Association for Computational Linguistics.
Cite (Informal):
Prediction-Augmented Generation for Automatic Diagnosis Tasks (Ju & Lee, Findings 2025)
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PDF:
https://preview.aclanthology.org/display_plenaries/2025.findings-acl.732.pdf