collaborators

6 papers

cs.IR2026

RecGPT-Mobile-V2 Technical Report

Lingqing Zhang, Bin Zhang, Weipeng Huang +25

Personalized Query prediction maps implicit behavioral signals---clicks, favorites, purchases, and post-purchase exploration---to explicit retrieval intent. On-device deployment ma…

cs.IR2026

PILOT Technical Report

Jiuning Lin, Ruiquan Lan, Xiaodong Zhu +17

Existing agentic approaches for recommendation system optimization remain fundamentally reactive: they adjust parameters in response to observed metric changes but lack the ability…

cs.IR2026

DREAM Technical Report

Bin Zhang, Bowen Zheng, Chao Yi +74

Industrial recommender systems commonly use cascaded retrieval, ranking, and re-ranking pipelines. Although efficient, these pipelines fragment information and objectives across mo…

cs.IR2026

MetaStrategy: Generative Ranking with Executable LLM Strategies

Chengyu Lai, Jiuning Lin, Zhibo Xiao +12

Industrial recommender systems rank heterogeneous content under coupled user, business, commercial, and experience objectives. Existing generative ranking methods typically constru…

cs.AI2026

UnityMAS-O: A General RL Optimization Framework for LLM-Based Multi-Agent Systems

Yiqun Chen, Wei Yang, Erhan Zhang +14

LLM-based multi-agent systems decompose complex tasks into interacting roles, but most remain manually orchestrated by prompts, tools, and control rules, while agents are rarely op…

cs.AI2024

QPO: Query-dependent Prompt Optimization via Multi-Loop Offline Reinforcement Learning

Yilun Kong, Hangyu Mao, Qi Zhao +7

Prompt engineering has demonstrated remarkable success in enhancing the performance of large language models (LLMs) across diverse tasks. However, most existing prompt optimization…