Author

Yufan Chen

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Preprint Aug 2026

SeqLoc: Beyond the Single Frame for Cross-View Geo-Localization in Feature-Sparse Scenes

Cross-View Geo-Localization (CVGL) with OpenStreetMap (OSM) performs well in structure-rich urban environments but collapses in feature-sparse scenes such as rural roads. To study this failure mode, in this work, we introduce CV-FSS, a benchmark that pairs sequential panoramas from five rural regions with aligned OSM m...

Junwei Zheng, Yunyi Huang, Ruize Dai et al. · 1 citation

Preprint Aug 2026

X$^2$Localizer: Cross-grained Alignment for Progressive Cross-view Video Geo-localization

This work forms Progressive Cross-view Video Geo-localization (PCVG) as a deployment-oriented extension and evaluation protocol of CVG, enabling localization under varying temporal budgets, prefix-based inference, random-start evaluation, and long-range localization with interruptions.

Zi-Chao Zeng, Weijia Fan, Yu-Fan Chen et al. · 0 citations

Preprint Aug 2026

Case2Flow: Bridging Patient Cases and Guideline Flowcharts through Multimodal Retrieval

Case2Flow is introduced, a task designed to retrieve the most relevant guideline flowchart for a given patient case from a collection of guideline documents and CRISP, a training-free scoring method that sharpens late-interaction retrieval by suppressing uninformative patches, discounting ambiguous token matches, and i...

Jiale Wei, Yufan Chen, Alexander Jaus et al. · 0 citations