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Zhi Song

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#artificial intelligence Preprint Sep 2026

Contract Memory Compiler: Resolve, Then Traverse

MQuAKE-MemStream, a derived dataset of ordered memory streams built from MQuAKE-Remastered counterfactual cases, is introduced, and the Contract Memory Compiler (CMC) is introduced, which achieves state-of-the-art multi-hop accuracy on FactConsolidation.

Zhi Song, Ximing Xing, Chun-Han Li et al. · 2 citations
#machine learning Preprint Aug 2026

PertMind: Eliciting Emergent Biological Reasoning in LLM via Reinforcement Learning on Cellular Perturbation Data

It is shown that cellular perturbation atlases can instead become reinforcement-learning environments, where measured gene responses provide computable rewards for biological reasoning, and introduces PertMind, which combines trusted-trajectory supervised initialization with gene-, pathway-, and format-level reinforcem...

Zhen-Chao Tang, Xiao-Gang Xu, Jia-Fei Wu et al. · 0 citations
Preprint Jul 2026

Branch-JEPA: Finite-Support Predictive Distributions for JEPA World Models

Branch-JEPA is introduced, which replaces this point-valued transition with a context-weighted finite set of latent successors, and preserves more distinct futures, while full-set scoring improves the quality of the resulting predictive distribution.

Zhi Song, Ximing Xing, Zhenchao Tang et al. · 0 citations

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