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Sheng Yue

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#artificial intelligence Preprint Sep 2026

$T^5$: Twin-Critic Training for Token-Level Thoughts in Reinforcement Mid-Training

This work proposes tfour, a twin-critic method that calibrates token-level advantages from a single generated trajectory, and describes optimal mixing under the signal-retention constraint and establishes an upper bound on residual mean-induced drift.

Nan Qiao, Ye-Bin Yang, Wei-Nong Wang et al. · 0 citations
Book Open access Aug 2026

Accelerating Graph-Based RAG Retrieval via Locality-Aware Device-Cloud Collaboration

This paper proposes Lever, a locality-aware collaborative retrieval framework that exploits query locality to accelerate graph-based RAG retrieval, and identifies and empirically validate a previously underexplored property of RAG workloads: strong per-user query locality.

Yong-Heng Deng, Tianyuan Jiang, Zhen-Ya Ma et al. · 0 citations
#edge computing Oct 2026

$\mathcal {O}^{2}$-UCB: A Federated Multi-Armed Bandit Mechanism in Zero Client-Owned Data Network

The Federated Multi-Armed Bandit (FMAB) framework is proposed to facilitate collaborative model training in cloud-edge environments. Most existing FMAB-based systems assume that participants have personal datasets. This assumption becomes biased in scenarios with limited local data or when the discrepancy between histo...

Hang-Fan Li, Yang Xu, Yi-Bin Cai et al. · 0 citations
Book Open access Aug 2026

Accelerating Graph-Based RAG Retrieval via Locality-Aware Device-Cloud Collaboration

Retrieval-Augmented Generation (RAG) grounds large language models in external knowledge and has become a key technique for knowledge-intensive tasks. As knowledge bases continue to scale, however, the retrieval stage increasingly dominates end-to-end latency, limiting the responsiveness of RAG systems. In this paper,...

Yongheng Deng, Tianyuan Jiang, Zhenya Ma et al. · 0 citations

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