Facet-level Persona Control with Contrastive SAE for Role-Playing

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• Facet-Level Persona Control by Trait-Activated Routing with Contrastive SAE for Role-Playing LLMs

  Facet-level personality control in role-playing LLMs is substantially improved by injecting contrastively trained sparse autoencoder (SAE) control vectors into mid-residual layers, with the CV-SAE+Pro