collaborators

5 papers

cs.IR2026

RAIR: A Rule-Aware Benchmark Uniting Challenging Long-Tail and Visual Salience Subset for E-commerce Relevance Assessment

Chenji Lu, Zhuo Chen, Hui Zhao +4

Search relevance plays a central role in web e-commerce. While large language models (LLMs) have shown significant results on relevance task, existing benchmarks lack sufficient co…

cs.IR2026

LORE: A Large Generative Model for Search Relevance

Chenji Lu, Zhuo Chen, Hui Zhao +9

Achievement. We introduce LORE, a systematic framework for Large Generative Model-based relevance in e-commerce search. Deployed and iterated over three years, LORE achieves a cumu…

cs.LG2025

Gradient Deconfliction via Orthogonal Projections onto Subspaces For Multi-task Learning

Shijie Zhu, Hui Zhao, Tianshu Wu +4

Although multi-task learning (MTL) has been a preferred approach and successfully applied in many real-world scenarios, MTL models are not guaranteed to outperform single-task mode…

cs.IR2025

MIM: Multi-modal Content Interest Modeling Paradigm for User Behavior Modeling

Bencheng Yan, Si Chen, Shichang Jia +12

Click-Through Rate (CTR) prediction is a crucial task in recommendation systems, online searches, and advertising platforms, where accurately capturing users' real interests in con…

cs.IR2025

Explainable LLM-driven Multi-dimensional Distillation for E-Commerce Relevance Learning

Gang Zhao, Ximing Zhang, Chenji Lu +5

Effective query-item relevance modeling is pivotal for enhancing user experience and safeguarding user satisfaction in e-commerce search systems. Recently, benefiting from the vast…