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Author

Lei Xiang

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Jul 2026

HPD-Parsing: Hierarchical Parallel Document Parsing

HPD-Parsing is introduced, which replaces full-page autoregressive generation with a Hierarchical Parallel Decoding paradigm, and establishes hierarchical parallel decoding as an effective alternative to full-page autoregressive generation, opening a new direction for efficient unified document parsing.

Shubo Wei, Jing-Jing Wu, Ling-Kun Zhang et al. · 0 citations
Preprint Aug 2026

DocTrace: Towards Traceable Long Document VQA via Hierarchical Evidence Graph Reasoning

This paper proposes DocTrace, a hierarchical framework that progressively performs evidence localization, structured document parsing, and evidence graph reasoning to enable explicit evidence provenance, and develops a two-stage training framework.

Lei Xiang, Zhi-Cheng Guan, Hong Chen et al. · 0 citations

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