Article ; Online: Infusing behavior science into large language models for activity coaching.
PLOS digital health
2024 Volume 3, Issue 4, Page(s) e0000431
Abstract: Large language models (LLMs) have shown promise for task-oriented dialogue across a range of domains. The use of LLMs in health and fitness coaching is under-explored. Behavior science frameworks such as COM-B, which conceptualizes behavior change in ... ...
Abstract | Large language models (LLMs) have shown promise for task-oriented dialogue across a range of domains. The use of LLMs in health and fitness coaching is under-explored. Behavior science frameworks such as COM-B, which conceptualizes behavior change in terms of capability (C), Opportunity (O) and Motivation (M), can be used to architect coaching interventions in a way that promotes sustained change. Here we aim to incorporate behavior science principles into an LLM using two knowledge infusion techniques: coach message priming (where exemplar coach responses are provided as context to the LLM), and dialogue re-ranking (where the COM-B category of the LLM output is matched to the inferred user need). Simulated conversations were conducted between the primed or unprimed LLM and a member of the research team, and then evaluated by 8 human raters. Ratings for the primed conversations were significantly higher in terms of empathy and actionability. The same raters also compared a single response generated by the unprimed, primed and re-ranked models, finding a significant uplift in actionability and empathy from the re-ranking technique. This is a proof of concept of how behavior science frameworks can be infused into automated conversational agents for a more principled coaching experience. |
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Language | English |
Publishing date | 2024-04-02 |
Publishing country | United States |
Document type | Journal Article |
ISSN | 2767-3170 |
ISSN (online) | 2767-3170 |
DOI | 10.1371/journal.pdig.0000431 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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