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Li-Na Yao

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Preprint Sep 2026

ChronicleRec: Pre-training Temporally Anchored Tokens for Lifelong User Modeling

ChronicleRec is a pre-train-and-transfer framework that compresses an ultra-long behavior sequence once into a chronologically ordered set of Chronicle Tokens, which can be cached per user, decoupling ultra-long sequence modeling from online candidate scoring.

Chengkai Huang, Yu-Bin Sheng, Liang Guo et al. · 0 citations
Book Open access Sep 2026

DPGFlow: Decoupled Preference Guided Flow Matching for Cross Domain Sequential Recommendation

DPGFlow is proposed, the first Flow Matching framework specifically designed for CDSR, which enables stable and efficient few-step inference and facilitates effective knowledge transfer under heterogeneous and noisy behaviors.

Xiao-Xin Ye, Chengkai Huang, Hong-Tao Huang et al. · 0 citations
Preprint Sep 2026

Closing the Long-Short View Gap in Sequential Recommendation without Cached History

This paper empirically identifies two structural flaws rooted in geometric properties and dataset sparsity, and proposes a novel two-stage framework to close the long-short-view performance gap and introduces a modified softmax to counter prefix position bias.

Ling-Feng Shi, Chengkai Huang, Li-Na Yao et al. · 0 citations
Book Open access Aug 2026

Causal Abstraction Learning for Multi-Modal Grounded Planning

Causal Abstraction Learning for Multi-Modal Grounded Planning (CALM) is proposed, a framework that enhances planning agents with the ability to discover and exploit causal regularities across tasks.

Xin-Shu Li, Shiyi Yang, Zi-Qi Xu et al. · 0 citations
Book Open access Jul 2026

Advantage-Conditioned Flow Policy for Offline Reinforcement Learning in Recommendation

PerfRec (Preference-aware Flow for Recommendation), a flow-matching offline RL framework that learns an expressive behavioral policy and distills it into an efficient one-step policy, is proposed and experiments show that PerfRec improves recommendation performance over strong offline RL baselines.

Xiaocong Chen, Siyu Wang, Li-Na Yao · 0 citations
Aug 2026

Self-supervised Causal Effects Estimation

Self-supervised Causal Effects Estimation is proposed, a novel framework that integrates causal priors with self-supervised learning to construct balanced and predictive representations for causal effects estimation that consistently outperforms state-of-the-art methods.

Xin-Shu Li, Shiyi Yang, Venus Haghighi et al. · 0 citations
Book Open access Aug 2026

Causal Abstraction Learning for Multi-Modal Grounded Planning

Recent advances in multimodal embodied agents have enabled long-horizon planning in visually rich environments via natural language. Yet, their generalization remains brittle when task instructions deviate from familiar examples, exposing a reliance on surface imitation rather than structural understanding. We propose...

Xinshu Li, Shiyi Yang, Ziqi Xu et al. · 0 citations
Book Open access Jul 2026

RegionSLM: Region-aware Question Answering on Document Screenshots

This work presents RegionSLM, a region-aware SLM designed to explicitly connect the question to its supporting regions, and curates ReDoc, a region-supervised corpus with 105k documents and 350k question-answer pairs obtained via a question-guided two-step filtering procedure.

Chao Wang, Hehe Fan, Huichen Yang et al. · 0 citations

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