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Zhao-Kai Luo

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#artificial intelligence Preprint Sep 2026

Learning to Learn from Context: Synthetic Training from Perturbed Public Documents

Real-world tasks often require large language models (LLMs) to learn from complex task-specific context rather than pretrained parametric knowledge. This capability remains a weakness of LLMs, while human annotation for such task contexts is expensive and difficult to scale. Public high-quality documents are an abundan...

Hao Wu, Yang Xiao, Yu-Song Sun et al. · 0 citations
#artificial intelligence Preprint Sep 2026

CompoWorld: Compositional Environment Scaling for General Agents

Automatically generated environments provide a scalable source of interaction data for training general agents. However, existing approaches mainly generate tasks within a single environment, while real-world workflows require agents to connect information and actions across multiple services. We introduce Compositiona...

Xiao-Wen Yang, Wei-Yi Xu, Wen Da et al. · 0 citations
#artificial intelligence Preprint Sep 2026

PACT: From Credit Assignment to Critic Alignment

Policy Aligned Critic Training (PACT), which adopts an Actor-then-Critic update order to apply importance sampling correction to critic training and better align the critic with the updated policy, is developed.

Jia-Yan Fu, Hang Xu, Yong Zhang et al. · 0 citations
Preprint Aug 2026

OneModel: A Unified Foundation for Platform-Scale Multi-Scenario Ranking

Platform-scale recommender systems often span multiple business streams such as organic recommendation, advertising, and merchant services, where user behaviors form a continuous cross-stream trajectory. Maintaining separate ranking systems fragments user representations and increases engineering cost. We propose \text...

Yinqi Zhang, Pei-Yu Hu, Yuntian Tang et al. · 1 citation
Preprint Sep 2026

AtomRec: Evolving Atomic Memory for Agentic Recommendation

Agentic recommender systems use large language models to maintain semantic memory and support evidence-aware recommendation. However, existing memory mechanisms often compress user and item information into coarse summaries and connect them with scalar collaborative links, making it difficult to preserve fine-grained p...

Pei-Yu Hu, Wei-Hai Lu, Si-Ying Gu et al. · 0 citations
Preprint Aug 2026

PILOT in the Loop: Live Self-Improvement for Long-Horizon Agents

PILOT is presented, a supervisor-worker harness for live self-improvement through two coupled mechanisms: (1) live steering lets a separate supervisor redirect or abort the active worker during execution; and (2) live self-evolution distils procedures and failure modes revealed during execution into reusable skills and...

Yang Xiao, Yu-Song Sun, Haoming Wu et al. · 2 citations
Jul 2026

Hierarchical Latent Reasoning for LLM-based Recommendation

To further optimize the reasoning trajectory, HiLaR combines final recommendation feedback with layer-aware process rewards derived from the marginal target-likelihood gain of each state, and generally outperforms strong sequential, generative, and LLM-based recommendation baselines.

Pei-Yu Hu, Si-Ying Gu, Wei-Hai Lu et al. · 1 citation
Preprint Jul 2026

Akashic: A Low-Overhead LLM Inference Service with MemAttention

This work proposes Akashic, a low-overhead memory system built around MemAttention, which organizes context into bounded chunks and models semantic relationships across chunks, preserving cross-chunk evidence without repeatedly rewriting the full history.

Yang Liu, ZhaoKai Luo, Huayi Jin et al. · 0 citations

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