Yi-Tong Li

Uniform-Baseline Implementation Matters in Long-Video Question Answering: A Controlled Study of Frame Sampling

Long-video question answering (QA) under a tight frame budget forces a sampling choice, and query-aware keyframe samplers are assumed to outperform uniform sampling. We investigate which properties of a frame selection are associated with a vision-language model’s (VLM) accuracy under a fixed protocol. We compare four...