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Author

Zhao Xu

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#artificial intelligence Preprint Sep 2026

PACE: Progressive Angular-to-Norm Contrastive Embedding

This paper proposes PACE, a two-stage framework that progressively expands both the representation and trainable parameter spaces, and introduces Focal Embedding Loss, a confidence-adaptive objective that downweights queries with high positive retrieval confidence while emphasizing ambiguous queries with competitive ne...

Yan-Ping Li, Wei Zhou, Ya-Wen Liu et al. · 1 citation
#artificial intelligence Preprint Sep 2026

CHIME: Credit-Aware Hierarchical Memory Evolution for Long-Horizon Agentic Planning

Credit-Aware Hierarchical Memory Evolution (CHIME), a self-evolving memory framework that maintains a separate planning bank and execution bank and follows an attribute-before-memorize principle, which shows that CHIME consistently outperforms state-of-the-art training-based and self-evolving memory baselines.

Yongshi Ye, Tian Lan, Feihu Jiang et al. · 0 citations
Preprint Jul 2026

OvisOCR2 Technical Report

This work introduces OvisOCR2, a 0.8B document parsing model designed as an end-to-end parser that combines filtered real-document annotations with synthetic pages whose rendered images and Markdown targets are derived from the same HTML source.

Shiyin Lu, Yinglun Li, Yu Xia et al. · 1 citation

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