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Author

Sangtae Ahn

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Jul 2026

Distribution-Alignment Bridge for Uncertainty-Aware Text-to-Video Retrieval

This paper proposes the Distribution-Alignment Bridge (DAB), a framework that reconceptualizes text-to-video retrieval as a distribution alignment task rather than traditional deterministic point matching, and introduces a distribution-aware contrastive loss based on Kullback-Leibler divergence.

Kyeongmo Chae, Jihoon Lee, Sangtae Ahn · 0 citations
Preprint Aug 2026

GaussVLA: Geometry-Aware Spatial Reasoning for Vision-Language-Action Model

GaussVLA is proposed, a Mamba-based VLA that incorporates two custom modules: Gaussian Spatial Tokenizer (GST) to lift frozen semantic and depth features into compact 3D Gaussian tokens, and Depth-Aware Chain-of-Thought (DA-CoT) that performs structured, non-autoregressive geometric reasoning under language and flow-ti...

MD SELIM SAROWAR, Md Tanvir Islam, Sungho Kim et al. · 1 citation

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