Measuring What Makes You Unique: Difference-Aware User Modeling for Enhancing LLM Personalization

Fuente: arXiv
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Autori principali: Qiu, Yilun, Zhao, Xiaoyan, Zhang, Yang, Bai, Yimeng, Wang, Wenjie, Cheng, Hong, Feng, Fuli, Chua, Tat-Seng
Natura: Preprint
Pubblicazione: 2025
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author Qiu, Yilun
Zhao, Xiaoyan
Zhang, Yang
Bai, Yimeng
Wang, Wenjie
Cheng, Hong
Feng, Fuli
Chua, Tat-Seng
author_facet Qiu, Yilun
Zhao, Xiaoyan
Zhang, Yang
Bai, Yimeng
Wang, Wenjie
Cheng, Hong
Feng, Fuli
Chua, Tat-Seng
contents Personalizing Large Language Models (LLMs) has become a critical step in facilitating their widespread application to enhance individual life experiences. In pursuit of personalization, distilling key preference information from an individual's historical data as instructional preference context to customize LLM generation has emerged as a promising direction. However, these methods face a fundamental limitation by overlooking the inter-user comparative analysis, which is essential for identifying the inter-user differences that truly shape preferences. To address this limitation, we propose Difference-aware Personalization Learning (DPL), a novel approach that emphasizes extracting inter-user differences to enhance LLM personalization. DPL strategically selects representative users for comparison and establishes a structured standard to extract meaningful, task-relevant differences for customizing LLM generation. Extensive experiments on real-world datasets demonstrate that DPL significantly enhances LLM personalization. We release our code at https://github.com/SnowCharmQ/DPL.
format Preprint
id arxiv_https___arxiv_org_abs_2503_02450
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Measuring What Makes You Unique: Difference-Aware User Modeling for Enhancing LLM Personalization
Qiu, Yilun
Zhao, Xiaoyan
Zhang, Yang
Bai, Yimeng
Wang, Wenjie
Cheng, Hong
Feng, Fuli
Chua, Tat-Seng
Computation and Language
Personalizing Large Language Models (LLMs) has become a critical step in facilitating their widespread application to enhance individual life experiences. In pursuit of personalization, distilling key preference information from an individual's historical data as instructional preference context to customize LLM generation has emerged as a promising direction. However, these methods face a fundamental limitation by overlooking the inter-user comparative analysis, which is essential for identifying the inter-user differences that truly shape preferences. To address this limitation, we propose Difference-aware Personalization Learning (DPL), a novel approach that emphasizes extracting inter-user differences to enhance LLM personalization. DPL strategically selects representative users for comparison and establishes a structured standard to extract meaningful, task-relevant differences for customizing LLM generation. Extensive experiments on real-world datasets demonstrate that DPL significantly enhances LLM personalization. We release our code at https://github.com/SnowCharmQ/DPL.
title Measuring What Makes You Unique: Difference-Aware User Modeling for Enhancing LLM Personalization
topic Computation and Language
url https://arxiv.org/abs/2503.02450