collaborators

12 papers

cs.IR2026

Preference-Drift-Aware Subsequence Learning and Hierarchical Context Fusion for Long-Sequence Generative Recommendation

Fei Li, Qingyun Gao, Jianzhe Zhao +5

Long-sequence generative recommendation methods autoregressively model the user's interaction sequence to generate the next-item representation. Existing methods generally fall int…

cs.IR2026

TGR: Advancing Industrial Recommendation from Generative-Paradigm Ranking toward Unified Generation and Reasoning

TGR Team, Lei Cheng, Haonan Hu +11

Industrial recommender systems typically rely on cascaded retrieval, pre-ranking, ranking, and reranking stages, whose separately optimized models limit scaling, fragment decision…

cs.IR2026

Bridging the Structural Gap: Adapting Autoregressive Generation for Recommendation

Junchao Zeng, Junzhang Zhu, Junyang Chen +4

Generative Recommendation (GR) has emerged as a new paradigm for sequential recommendation, in which a representative line of work encodes items into hierarchical semantic IDs via…

cs.IR2026

CCFormer: Efficient Cross-Field Interaction and Hierarchical Sequence Compression for Industrial Recommendation at Tencent

Yunlong Wang, Huizhe Zhang, Haonan Hu +5

Recent studies in industrial recommendation systems have demonstrated that sequential recommendation models built upon self-attention can benefit from predictable scaling laws by i…

cs.LG2026

SPARD: Defending Harmful Fine-Tuning Attack via Safety Projection with Relevance-Diversity Data Selection

Shuhao Chen, Weisen Jiang, Yeqi Gong +5

Fine-tuning large language models often undermines their safety alignment, a problem further amplified by harmful fine-tuning attacks in which adversarial data removes safeguards a…

cs.CL2026

Intent-Driven Semantic ID Generation for Grounded Conversational News Recommendation

Hongyang Su, Beibei Kong, Lei Cheng +3

Conversational news recommendation requires grounding each suggestion in a rapidly evolving article corpus while addressing implicit user intents that lack explicit retrievable key…

cs.IR2026

SAGER: Self-Evolving User Policy Skills for Recommendation Agent

Zhen Tao, Riwei Lai, Chenyun Yu +7

Large language model (LLM) based recommendation agents personalize what they know through evolving per-user semantic memory, yet how they reason remains a universal, static system…

cs.IR2025

HiGR: Industrial-Scale Hierarchical Generative Slate Recommendation Framework in Tencent

Yunsheng Pang, Zijian Liu, Yudong Li +10

Slate recommendation, which presents users with a ranked item list in a single display, is ubiquitous across mainstream online platforms. While recent generative recommendation met…

cs.MM2025

When Top-ranked Recommendations Fail: Modeling Multi-Granular Negative Feedback for Explainable and Robust Video Recommendation

Siran Chen, Boyu Chen, Chenyun Yu +5

Existing video recommendation systems, relying mainly on ID-based embedding mapping and collaborative filtering, often fail to capture in-depth video content semantics. Moreover, m…

cs.IR2025

G-UBS: Towards Robust Understanding of Implicit Feedback via Group-Aware User Behavior Simulation

Boyu Chen, Siran Chen, Zhengrong Yue +7

User feedback is critical for refining recommendation systems, yet explicit feedback (e.g., likes or dislikes) remains scarce in practice. As a more feasible alternative, inferring…

cs.MM2025

VRAgent-R1: Boosting Video Recommendation with MLLM-based Agents via Reinforcement Learning

Siran Chen, Boyu Chen, Chenyun Yu +6

Owing to powerful natural language processing and generative capabilities, large language model (LLM) agents have emerged as a promising solution for enhancing recommendation syste…

cs.AI2025

Investigating Pedagogical Teacher and Student LLM Agents: Genetic Adaptation Meets Retrieval Augmented Generation Across Learning Style

Debdeep Sanyal, Agniva Maiti, Umakanta Maharana +4

Effective teaching requires adapting instructional strategies to accommodate the diverse cognitive and behavioral profiles of students, a persistent challenge in education and teac…