R$^2$A: Learning Persona Policies Through Persona Representation Learning and Runtime Alignment
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Computer Science > Computation and Language
arXiv:2608.29798 (cs)
[Submitted on 30 Aug 2026]
Title:R$^2$A: Learning Persona Policies Through Persona Representation Learning and Runtime Alignment
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Abstract:The same Persona behavior can be beneficial in one context but harmful in another, causing static Persona elicitation to perform inconsistently across tasks. We introduce the Persona Selection--Realization Framework, which models behavior generation through a latent Persona state and decomposes it into Persona Selection and Persona Realization. The discrepancies between static Persona elicitation and an ideal Persona policy in these two components define the Selection Gap and Realization Gap, respectively. Building on this framework, we propose R$^2$A, a two-stage approach for learning Persona policies. Persona Representation Learning uses structured Who--How--What presentations to encode the target Persona's objective, conditional behavioral principles, and trajectory-level manifestations. Persona Runtime Alignment then removes the explicit Persona specification and jointly calibrates behavior selection and trajectory realization using task feedback. Across 12 evaluation settings covering the four principles of the Accountable-Professional Persona studied in this work, R$^2$A overall outperforms both the base model and static Persona elicitation. Ablation results further show that Persona Representation Learning is critical for preventing Runtime Alignment from producing behaviorally imbalanced policies and for achieving more stable Persona policy learning.
| Comments: | 17 pages, 6 figures |
| Subjects: | Computation and Language (cs.CL); Artificial Intelligence (cs.AI) |
| Cite as: | arXiv:2608.29798 [cs.CL] |
| (or arXiv:2608.29798v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2608.29798
arXiv-issued DOI via DataCite (pending registration)
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View a PDF of the paper titled R$^2$A: Learning Persona Policies Through Persona Representation Learning and Runtime Alignment, by Mohan Zhang and 6 other authors
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