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Jie Hao

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#artificial intelligence Preprint Oct 2026

MemComposer: Learning to Assemble Memories for LLM Agents via Reinforcement Learning

Agent memory enables large language model (LLM) agents to reuse past experiences without updating their parameters. However, semantic similarity alone does not guarantee memory usefulness: downstream performance depends on how memories are selected and presented to the agent. We propose MemComposer, a memory composer t...

Yi-Xuan Xie, Xue-Qiang Xu, Xin-Yi Fan et al. · 0 citations
#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

HyperMCTS: Hypergraph-Augmented MCTS for Long-Horizon LLM Agents

This work proposes HyperMCTS, a training-free method that augments an ordered MCTS tree with a cross-trajectory hypergraph, allowing outcomes collected under one prefix to inform selection under another while preserving execution histories in the tree.

Ting-Song Xiao, Nithish Balachandar Moudhgalya, Chandrayee Basu et al. · 0 citations
#machine learning Preprint Sep 2026

Cliff: Learning Process Rewards from the First Mistake

Cliff, a reward shaping strategy that utilizes an off-the-shelf LLM as a teacher to identify the first mistake in each rollout, is proposed and established as a simple, general and effective approach for improving RLVR with richer, fine-grained supervision.

Pei-Xuan Han, Runnan Wang, Ketan Ramaneti 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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