Do Implicit Personalization and Explicit Styles Conflict? PsPLUG: A Lightweight Plug-in for Balancing Personalization and Style in Customized LLMs
Style instructions can wash out the very user traits a personalized model is meant to keep.
The paper names this failure “personalization collapse,” where explicit style control conflicts with implicit user preferences. PsPLUG is proposed as a lightweight plug-in that learns a user-specific residual after accounting for the requested style. The authors say it also lets personalization strength be adjusted at inference time. In their experiments, PsPLUG better preserves user preferences while keeping style adherence controllable. HF Daily Papers' note
The paper names this failure “personalization collapse,” where explicit style control conflicts with implicit user preferences. PsPLUG is proposed as a lightweight plug-in that learns a user-specific residual after accounting for the requested style. The authors say it also lets personalization strength be adjusted at inference time. In their experiments, PsPLUG better preserves user preferences while keeping style adherence controllable. HF Daily Papers' note
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