2024

Exposing Privacy Gaps: Membership Inference Attack on Preference Data for LLM Alignment

Feng, Qizhang, Kasa, Siva Rajesh, Kasa, Santhosh Kumar et al.

Understand

Large Language Models (LLMs) have seen widespread adoption due to their remarkable natural language capabilities.

  • However, when deploying them in real-world settings, it is important to align LLMs to generate texts according to acceptable human standards.
  • Methods such as Proximal Policy Optimization (PPO) and Direct Preference Optimization (DPO) have enabled significant progress in refining LLMs using human preference data.
  • However, the privacy concerns inherent in utilizing such preference data have yet to be adequately studied.

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