Lei Cheng

Venues

Frequent coauthors

Papers

1. G-UBS: Towards Robust Understanding of Implicit Feedback via Group-Aware User Behavior Simulation
   AAAI 2026 ·

   Boyu Chen

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2. Intent-Driven Semantic ID Generation for Grounded Conversational News Recommendation
   ACL 2026 ·

   Hongyang Su

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3. VRAgent-R1: Boosting Video Recommendation with MLLM-based Agents via Reinforcement Learning
   AAAI 2026 ·

   Siran Chen

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4. When Top-ranked Recommendations Fail: Modeling Multi-Granular Negative Feedback for Explainable and Robust Video Recommendation
   AAAI 2026 ·

   Siran Chen

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5. A Learnable Fully Interacted Two-Tower Model for Pre-Ranking System
   SIGIR 2025 ·

   Chao Xiong

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6. DOGR: Leveraging Document-Oriented Contrastive Learning in Generative Retrieval
   AAAI 2025 ·

   Penghao Lu

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7. Enhancing Sequential Recommenders with Augmented Knowledge from Aligned Large Language Models
   SIGIR 2024 ·

   Yankun Ren

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8. GATS: Generative Audience Targeting System for Online Advertising
   SIGIR 2024 ·

   Cong Jiang

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