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TA-RAG introduces a lightweight, prompt-based framework that integrates explicit tone control into standard RAG pipelines without requiring model fine-tuning. By addressing stigma, readability, and empathy through four specific components, the approach demonstrates that factual grounding alone is insufficient for sensitive health domains like HIV peer support. This work highlights a viable direction for adapting retrieval-augmented systems to meet the nuanced communication standards required in high-stakes social contexts.
TA-RAG: Tone-Aware Retrieval-Augmented Generation for Peer-Support Health Communication
arXiv:2606.06794v1 Announce Type: new Abstract: Retrieval-augmented generation (RAG) successfully grounds large language model (LLM) outputs in trusted documents, but factual grounding alone is insufficient for sensitive peer-support health communication. In domains such as HIV peer support, responses must also be accessible, stigma-free, empathetic, and tailored to the recipient. This paper presents TA-RAG, a lightweight, prompt-based tone-aware RAG framework that embeds explicit tone control into a RAG pipeline without requiring model fine-tuning. We operationalise tone across four core components: stigma-free rewriting, readability adjustment, recipient adaptation, and empathy rephrasing. We evaluate TA-RAG through component-level tests using questions derived from HIV Online Learning Australia (HOLA), UNAIDS terminology guidance, readability metrics, peer-support standards from National Association of People with HIV Australia (NAPWHA), and a public empathy dataset. Results show that the TA-RAG's components improve their targeted communication quality while preserving key content. These findings emphasise that prompt-based tone control is a potential direction for making RAG outputs suitable for sensitive peer-support health communication.
Abstract:Retrieval-augmented generation (RAG) successfully grounds large language model (LLM) outputs in trusted documents, but factual grounding alone is insufficient for sensitive peer-support health communication. In domains such as HIV peer support, responses must also be accessible, stigma-free, empathetic, and tailored to the recipient. This paper presents TA-RAG, a lightweight, prompt-based tone-aware RAG framework that embeds explicit tone control into a RAG pipeline without requiring model fine-tuning. We operationalise tone across four core components: stigma-free rewriting, readability adjustment, recipient adaptation, and empathy rephrasing. We evaluate TA-RAG through component-level tests using questions derived from HIV Online Learning Australia (HOLA), UNAIDS terminology guidance, readability metrics, peer-support standards from National Association of People with HIV Australia (NAPWHA), and a public empathy dataset. Results show that the TA-RAG's components improve their targeted communication quality while preserving key content. These findings emphasise that prompt-based tone control is a potential direction for making RAG outputs suitable for sensitive peer-support health communication.
Computation and Language (cs.CL); Information Retrieval (cs.IR)
I.2.7; H.3.3; I.7
arXiv:2606.06794 [cs.CL]
(or arXiv:2606.06794v1 [cs.CL] for this version)
https://doi.org/10.48550/arXiv.2606.06794 Focus to learn more arXiv-issued DOI via DataCite (pending registration)
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