Author

Dongwon Kim

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Preprint Oct 2026

When to Switch: Reliable Action-Chunk Extension for Vision-Language-Action Models

Vision-Language-Action (VLA) models serve as unified policies for robotic manipulation, yet their expensive inference forces robots to pause between policy calls, resulting in stop-and-go execution that interrupts smooth motion and prolongs task completion. Extending the action chunk reduces policy calls and hence thes...

Seonghoon Yu, Dongwon Kim, Hyungrok Jung et al. · 0 citations

Jul 2026

EventCoT: Event-centric Video Chain-of-thought for Reasoning Temporal Localization

This work proposes the first event-centric video chain-of-thought framework, dubbed EventCoT, which achieves state-of-the-art results on ActivityNet-RTL while using substantially fewer visual tokens than previous work, and attains strong zero-shot results on the grounded video question answering benchmark ReXTime.

Youngkil Song, Yoonjae Baek, Dongwon Kim et al. · arXiv.org · 0 citations