Debaditya Roy

2 papers indexed

arxivcs.CV2026-07-01

Imprint: Online Memory Compression for Long-Horizon Egocentric QA

Long-horizon egocentric question answering involves answering about events that have occurred hours or days in the past. This requires memory representations that remain both retrieval-effective and scalable over days or weeks of recording. Existing long-horizon egocentric QA met…

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arxivcs.CV2026-06-29

H-GRPO: Permutation-Invariant Reinforcement Learning for Grounded Visual Reasoning

Eric Peh, Debaditya Roy, Basura Fernando

Vision-Language Models (VLMs) often achieve high performance on benchmarks while remaining "black boxes", yet they remain prone to hallucination or rely on superficial shortcuts. In this work, we propose a framework designed to enhance both performance and interpretability throug…

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