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Zichuan Liu

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#machine learning Preprint Oct 2026

SplitJEPA: Learning Invariant and Variant Latent Worlds without Reconstruction

SplitJEPA is introduced, a JEPA that jointly recovers the latent state and its invariant and variant organization directly in representation space, without any reconstruction, and extends reconstruction-free latent recovery to invariant-variant block identification.

Rui-Jin Hua, Zichuan Liu, Zhuokai Zhao et al. · 0 citations
Preprint Aug 2026

Towards A Unified Information Bottleneck Framework for Time Series Explanations

A unified objective function for explainable time series learning that bridges attribution and counterfactual reasoning within a single framework is proposed and a novel explanation framework is introduced that learns a parametric transformation network to construct explanation-embedded instances.

Xu Zheng, Zichuan Liu, Zhuo-Min Chen et al. · 0 citations
Jul 2026

Tool-Adaptive LLM Reranker

TALRanker is a novel framework that formalizes pointwise relevance scoring as an agentic Markov decision process that achieves state-of-the-art performance across standard and reasoning-intensive retrieval benchmarks, matching throughput with pointwise rerankers while outperforming parameter-heavy reasoning models.

Zichuan Liu, Ruijin Hua · 0 citations

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