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#artificial intelligence Preprint Sep 2026

Gradient-Aligned Pair Selection for Personalized Preference Optimization

Personalizing large language models (LLMs) requires aligning generation behavior with user-specific preferences rather than aggregate quality. While Direct Preference Optimization (DPO) provides a stable framework for preference learning, its effectiveness in personalized settings critically depends on how preference p...

Ruo-Ming Jin, Xin-Yu Li, Hao Zhou et al. · 0 citations
#artificial intelligence Preprint Sep 2026

On the Regularization Landscape for the Linear Recommendation Models

Recently, a wide range of recommendation algorithms inspired by deep learning techniques have emerged as the performance leaders on several standard recommendation benchmarks. While these algorithms were built on different DL techniques (e.g., dropouts, autoencoder), they have similar performance and even similar cost...

Dong Li, Zhenming Liu, Ruoming Jin et al. · 0 citations
#artificial intelligence Preprint Sep 2026

PLUME: Parameter-Efficient Personalization of Large Language Models via Low-Rank User Modulation in Shared Subspaces

Personalizing large language models (LLMs) is essential for delivering AI assistance that aligns with individual users'styles, intents, and preferences. While per-user fine-tuning can substantially enhance personalization quality, it introduces significant parameter and storage overhead, limiting scalability to large u...

Xin-Yu Li, Hao Zhou, Jian-Feng Zhu et al. · 0 citations

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