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Duoqian Miao

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#artificial intelligence Preprint Oct 2026

MemCode: Discrete Semantic Representations for Long-Term Agent Memory

Long-term memory remains a fundamental bottleneck for large language model (LLM) agents across sessions. Existing systems typically adopt a write-then-retrieve paradigm, storing context-dependent dialogue fragments and retrieving them via nearest-neighbor search in a continuous embedding space. This design yields unsta...

Xin Li, Liang Hu, Duo-Qian Miao et al. · 0 citations
Book Open access Aug 2026

HeteroFL-LoRA: Federated LoRA Fine-Tuning Across Heterogeneous LFMs via Singular Value Collaboration

HeteroFL-LoRA is proposed, a federated framework that enables LoRA fine-tuning across heterogeneous LFMs and introduces a Singular Matrix–Guided Subspace Projection that employs singular matrices to achieve cross-subspace mapping, enabling heterogeneous clients to aggregate their LoRA updates in a unified representatio...

Zhuojia Wu, Qi Zhang, Xue-Rong Zhao et al. · 0 citations
Aug 2026

IRPP: Invariant Representation Learning With Progressive Prototype Refinement for Unsupervised Person Re-Identification

Unsupervised person re-identification (USL-ReID) typically relies on clustering to generate pseudo-labels, but significant cross-view appearance variations often cause images of the same identity to be split into different clusters. Training on such noisy pseudo-labels severely degrades the learned representations. The...

Xuan Tan, Qi-Xian Zhang, Ding Qi et al. · 0 citations
Jul 2026

Mask-Guided Asymmetric Contrastive and Semantic Alignment for Unsupervised Person Re-Identification

Unsupervised person re-identification (ReID) aims to learn identity-discriminative representations without manual annotations, which is challenging due to noisy pseudo labels, background clutter, and large appearance variations. Recent studies have shown that exploiting fine-grained local cues is crucial for improving...

Xuan Tan, Ruijian Wei, Qixian Zhang et al. · 0 citations
Book Open access Aug 2026

HeteroFL-LoRA: Federated LoRA Fine-Tuning Across Heterogeneous LFMs via Singular Value Collaboration

HeteroFL-LoRA is proposed, a federated framework that enables LoRA fine-tuning across heterogeneous LFMs and introduces a Singular Matrix–Guided Subspace Projection that employs singular matrices to achieve cross-subspace mapping, enabling heterogeneous clients to aggregate their LoRA updates in a unified representatio...

Zhuojia Wu, Qi Zhang, Xuerong Zhao et al. · 0 citations

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