Understanding the Role of User Profile in the Personalization of Large Language Models

Understand

Utilizing user profiles to personalize Large Language Models (LLMs) has been shown to enhance the performance on a wide range of tasks.

• However, the precise role of user profiles and their effect mechanism on LLMs remains unclear.
• This study first confirms that the effectiveness of user profiles is primarily due to personalization information rather than semantic information.
• Furthermore, we investigate how user profiles affect the personalization of LLMs.