Author

Hongji Li

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#natural language process... Preprint Sep 2026

The Answer-Basin Representation Hypothesis: We Are Not Probing or Steering Concepts

The Linear Representation Hypothesis associates high-level concepts with directions in language models, but it remains unclear how these concept-related linear structures are organized within the model. We propose the Answer-Basin Representation Hypothesis: the probability measure induced over answers by the model's co...

Man-Jiang Yu, Hongji Li, Zi-Han Wang et al. · 0 citations

#artificial intelligence Preprint Jul 2026

CleanVideo: Adaptive Concept Erasure for Text-to-Video Diffusion Models

Experiments show that CleanVideo effectively erases target concepts while maintaining visual fidelity and temporal coherence, outperforming existing baselines under frame-level and video-level evaluations and under concept-recovery attacks when the protected pipeline remains intact.

Jun-Hui Liao, Hongji Li, Wen-Rui Zhou et al. · 0 citations