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Author

Sheng-Han Tan

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Preprint Sep 2026

STORM-Bench: Evaluating Online Video QA under Evolving and Incomplete Evidence

Reliable online video question answering requires tracking state transitions while selectively abstaining when visual evidence is insufficient. Existing benchmarks focus on static recognition or long-range retrieval, rarely evaluating these coupled capabilities under evolving and incomplete evidence. We present STORM-B...

Si-Ru Zhong, Sheng-Han Tan, Rihong Yan et al. · 0 citations
Preprint Sep 2026

RADNPO: Reference-free Adaptive Negative Preference Optimization for LLM Unlearning

Large language models (LLMs) can memorize sensitive, private, or copyrighted content during pre-training, making machine unlearning necessary for removing targeted knowledge. Recent preference optimization (PO)-based unlearning methods improve stability over gradient ascent (GA)-based methods by introducing alignment-s...

Sheng-Han Tan, Zi-Yi Zhou, Wen-Peng Hu et al. · 0 citations

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