HalluEntity: Benchmarking and Understanding Entity-Level Hallucination Detection

Understand

To mitigate the impact of hallucination nature of LLMs, many studies propose detecting hallucinated generation through uncertainty estimation.

• However, these approaches predominantly operate at the sentence or paragraph level, failing to pinpoint specific spans or entities responsible for hallucinated content.
• This lack of granularity is especially problematic for long-form outputs that mix accurate and fabricated information.
• To address this limitation, we explore entity-level hallucination detection.