Author

Chen Zhang

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Jul 2026

Bridging the Information Gap: Semantic Densification and Hindsight Distillation for Cold-Start Prediction

New-user cold-start is a critical bottleneck for e-commerce platforms: predicting user lifetime value (LTV) and conversion rate (CVR) for users with sparse interaction history. Two prior directions -- LLM-based semantic augmentation and learning using privileged information (LUPI) -- each face a key limitation. First,...

Hao Duong Le, Yifei Gao, Huanda Li et al. · arXiv.org · 0 citations

Conference Open access 2026

PsyChain: A Collaborative Chain-of-Agents Framework for Generating Personalized and Professional Counseling Dialogues

The proposed Psy chain-of-agents framework is a chain-of-agents framework that evolves static counseling corpora into high-fidelity dialogues through collaborative simulation which explicitly models client personality, stage progression, safety monitoring, and expert supervision.

Yi Feng, Zijie Yang, Chen Zhang et al. · Annual Meeting of the Associ... · 0 citations