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Chenlei Guo

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#machine learning Preprint Oct 2026

WOVEN: Weaving Visual World Modeling into Multimodal LLMs

Multimodal large language models (MLLMs) struggle with spatial, embodied, physical, and temporal reasoning. We hypothesize that these failures reflect a shared deficit in visual transition reasoning, and test whether this capability can serve as a shared training primitive, one that different models can learn from diff...

Zhe-Yu Fan, Yue Zhang, Ming-Kai Deng et al. · 0 citations
#artificial intelligence Preprint Sep 2026

EnSIMem: Entity-Structured Indexing for Long-Term Agent Memory

Results show that entity-structured indexing and episode-level provenance provide a reliable foundation for long-term memory in agents, and EnSIMem achieves high answer accuracy while maintaining compact, evidence-focused contexts.

Xuan-Yu Meng, Xing Fan, Xin-Yi Fan et al. · 0 citations

PA3: Policy-Aware Agent Alignment through Chain-of-Thought

This work proposes a multi-stage alignment method that teaches models to recall and apply relevant business policies during chain-of-thought reasoning at inference time, without including the full business policy in-context.

Shubhashis Roy Dipta, Daniel Bis, Kun Zhou et al. · 6 citations
#machine learning Preprint Aug 2026

Scaling Automatic Research Agents via World Models

This paper proposes World Model RL (WMRL), which replaces environment execution with a world model to remove this bottleneck and accelerates training by 3-4x on various tasks at different agent scales, while exceeding the performance of standard RL baselines.

Xi-Yuan Yang, S. Sarwar, Jingru Cheng et al. · 1 citation

VEG: Verbal ϵ -greedy for Semantic Exploration in Multi-Turn RL Agents

This work proposes VEG (verbal ϵ -greedy), a novel framework that leverages external feedback as a dynamic control variable to explicitly balance exploration and exploitation within the semantic space and achieves superior accuracy compared to standard RL baselines.

Yongchang Hao, Jie Hao, Yongsheng Mei et al. · 0 citations

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