RANGER: Sparsely-Gated Mixture-of-Experts with Adaptive Retrieval Re-ranking for Pathology Report Generation

The paper proposes RANGER, a novel framework for pathology report generation that combines a sparsely-gated Mixture-of-Experts decoder with an adaptive retrieval re-ranking module to overcome limitations in existing transformer-based approaches by enabling dynamic expert specialization and reducing noise from external knowledge retrieval.

Yixin Chen, Ziyu Su, Hikmat Khan + 1 more2026-03-05🤖 cs.AI

FocusGraph: Graph-Structured Frame Selection for Embodied Long Video Question Answering

FocusGraph is a novel framework for embodied long video question answering that combines a lightweight Scene-Caption LLM Selector for identifying query-relevant clips and a training-free Patch-wise Sparse-Flow Retention method for keyframe selection, achieving state-of-the-art performance on egocentric benchmarks while significantly reducing inference time.

Tatiana Zemskova, Solomon Andryushenko, Ilya Obrubov + 4 more2026-03-05💻 cs

Leveraging Foundation Models for Content-Based Image Retrieval in Radiology

This paper demonstrates that off-the-shelf vision foundation models, particularly the weakly-supervised BiomedCLIP, can serve as highly effective, general-purpose feature extractors for content-based image retrieval in radiology, achieving performance comparable to specialized systems across 1.6 million images and 161 pathologies without requiring additional training.

Stefan Denner, David Zimmerer, Dimitrios Bounias + 8 more2026-03-04💻 cs