New architecture enables privacy-preserving LLM personalization with deletable user proxies

By PulseAugur Editorial · [1 sources] · 2026-04-23 11:51

Researchers have developed a novel three-layer architecture designed to enhance privacy in personalized large language models. This system separates user-specific data from the core model weights by utilizing composable adapters and deletable user proxies. Experiments on Phi-3.5-mini and Llama-3.1-8B demonstrated that user data influences outputs without contaminating shared weights, and that removing user proxies effectively reverts the model to its baseline state. AI

IMPACT Enables personalized LLM experiences without compromising user data privacy through deterministic unlearning.

RANK_REASON Academic paper detailing a novel architecture for privacy-preserving LLM personalization.

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New architecture enables privacy-preserving LLM personalization with deletable user proxies

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arXiv cs.LG TIER_1 English(EN) · Ben Bariach · 2026-04-23 11:51

Separable Expert Architecture: Toward Privacy-Preserving LLM Personalization via Composable Adapters and Deletable User Proxies

Current model training approaches incorporate user information directly into shared weights, making individual data removal computationally infeasible without retraining. This paper presents a three-layer architecture that decouples personal data from shared weights by combining …

COVERAGE [1]

Separable Expert Architecture: Toward Privacy-Preserving LLM Personalization via Composable Adapters and Deletable User Proxies

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