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Jiaming Zhang

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#artificial intelligence Preprint Oct 2026

VL-DocIR: A Benchmark for Vision-Based Long Document Information Retrieval

Vision-based document retrieval has improved rapidly, but current evaluation settings still emphasize short documents and single relevant pages. This leaves an important gap between leaderboard performance and realistic long-document retrieval, where the evidence needed to answer a query may span multiple pages or even...

Simon Ott, Yu-Fan Chen, Rui-Ping Liu et al. · 0 citations
Preprint Aug 2026

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

SeqLoc is proposed, an online test-time sequence aggregation mechanism that recursively maintains a log-belief volume with three key components that outperforms single-frame localization by a large margin, improving both position and orientation recall by over 50%.

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

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