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cs.CV2026
Variance & Greediness: A comparative study of metric-learning losses
Donghuo Zeng, Hao Niu, Zhi Li +1
Metric learning is central to retrieval, yet its effects on embedding geometry and optimization dynamics are not well understood. We introduce a diagnostic framework, VARIANCE (int…
cs.CV2025
CoTasks: Chain-of-Thought based Video Instruction Tuning Tasks
Yanan Wang, Julio Vizcarra, Zhi Li +2
Despite recent progress in video large language models (VideoLLMs), a key open challenge remains: how to equip models with chain-of-thought (CoT) reasoning abilities grounded in fi…