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Lama Moukheiber

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#machine learning Preprint Oct 2026

How Long, Not How Close: A Learned Temporal Metric for Planning in Latent World Models

Latent world models plan by rolling a frozen predictor forward under candidate action sequences and ranking the candidates by the latent distance between their imagined end state and the goal. However, this ranking breaks down when the goal lies several plans away, because the latent distance measures how closely an en...

Lama Moukheiber, Haotian Xue, Yong-Xin Chen · 0 citations
#artificial intelligence Preprint Sep 2026

LabBook: Harnessing Experimental History for Efficient LLM-Driven Discovery

Evolutionary approaches to LLM-driven discovery often generate new programs from a small set of selected ancestors. This keeps contexts manageable but can omit useful evidence from other experiments, whereas including the full experimental history produces long, redundant contexts. We introduce a simple, single-agent d...

Bo Yuan, Wenqian Ye, Ze-Lin Zhao et al. · 0 citations
Preprint Aug 2026

Improving Generalization Robustness of Multimodal RLVR

Reinforcement Learning with Verifiable Rewards (RLVR) makes Multimodal Large Language Models more accurate, but the gains are brittle: simply paraphrasing a question or changing the prompt template can degrade them, which challenges reliable deployment in high-stakes scenarios like medical VQA. We trace this to two iss...

P. Zhou, Zhiwei Tang, Xiaopeng Peng et al. · 0 citations

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