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Buyun Zhang

3 accepted papers

2026

Implicit Turn-Wise Policy Optimization for Proactive User-LLM Interaction

ICML 2026poster

Multi-turn human-AI collaboration is fundamental to deploying interactive services such as adaptive tutoring, conversational recommendation, and professional consultation. However, optimizing these interactions via reinforcement learning is hindered by the sparsity of verifiable intermediate rewards…

Cited by 0SourceScholar
2025

The Efficiency vs. Accuracy Trade-off: Optimizing RAG-Enhanced LLM Recommender Systems Using Multi-Head Early Exit

ACL 2025long

The deployment of Large Language Models (LLMs) in recommender systems for Click-Through Rate (CTR) prediction requires a careful balance between computational efficiency and predictive accuracy. This paper introduces OptiRAG-Rec, a comprehensive framework that integrates Retrieval-Augmented Generati…

Cited by 0SourcePDFScholar
2024

Wukong: Towards a Scaling Law for Large-Scale Recommendation

ICML 2024poster

Scaling laws play an instrumental role in the sustainable improvement in model quality. Unfortunately, recommendation models to date do not exhibit such laws similar to those observed in the domain of large language models, due to the inefficiencies of their upscaling mechanisms. This limitation pos…

Cited by 21SourcePDFScholar