PPaperPicks

Xu Chen

Renmin University of China, China

52 papers at tracked venues · 43 at CORE A* · active 2024–2026

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Venues

ACL ×8NeurIPS ×7SIGKDD ×7WWW ×7ICLR ×4NAACL ×4EMNLP ×3ICML ×3AAAI ×2SIGIR ×2ACM MM ×1CIKM ×1ICDE ×1RecSys ×1VLDB ×1

Frequent coauthors

Hao Wang
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Zeyu Zhang
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Xueyang Feng
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Rui Li
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Lei Wang
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Jiakai Tang
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Haoran Tan
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Zexu Sun
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Luyu Chen
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Jingsen Zhang
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Haoxuan Li
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Jinman Zhao
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Papers

  1. Beyond Step Pruning: Information Theory Based Step-level Optimization for Self-Refining Large Language Models
    AAAI 2026 ·
    Jinman Zhao
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  2. Divergence Meets Consensus: A Multi-Source Negative Sampling Framework for Sequential Recommendation
    SIGIR 2026 ·
    Yuanzi Li
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  3. Explicit v.s. Implicit Memory: Exploring Multi-hop Complex Reasoning Over Personalized Information
    SIGKDD 2026 ·
    Zeyu Zhang
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  4. From Coarse to Fine: Self-Adaptive Hierarchical Planning for LLM Agents
    ACL 2026 ·
    Haoran Tan
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  5. Learning from Cognition: Enhancing RL Efficiency for LLM Reasoning via Hierarchical Metacognitive Decomposition and Refinement
    ACL 2026 ·
    Zexu Sun
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  6. Optimizing Multi-Turn Interactive Recommendation Agents via Generative Intrinsic Motivation
    WWW 2026 ·
    Xueyang Feng
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  7. CAM: A Constructivist View of Agentic Memory for LLM-Based Reading Comprehension
    NeurIPS 2025 ·
    Rui Li
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  8. CharacterBox: Evaluating the Role-Playing Capabilities of LLMs in Text-Based Virtual Worlds
    NAACL 2025 ·
    Lei Wang
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  9. Distributional LLM-as-a-Judge
    NeurIPS 2025 ·
    Luyu Chen
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  10. Enhancing Recommendation Explanations through User-Centric Refinement
    EMNLP 2025 ·
    Jingsen Zhang
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  11. Expectation Confirmation Preference Optimization for Multi-Turn Conversational Recommendation Agent
    ACL 2025 ·
    Xueyang Feng
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  12. GenSim: A General Social Simulation Platform with Large Language Model based Agents
    NAACL 2025 ·
    Jiakai Tang
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  13. Improving Retrospective Language Agents via Joint Policy Gradient Optimization
    NAACL 2025 ·
    Xueyang Feng
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  14. Iterative Missing Data Imputation with Model Form Adaptation and Non-Missing Feature Supervision
    NeurIPS 2025 ·
    Hao Wang
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  15. KAPA: A Deliberative Agent Framework with Tree-Structured Knowledge Base for Multi-Domain User Intent Understanding
    ACL 2025 ·
    Jiakai Tang
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  16. KnowTrace: Bootstrapping Iterative Retrieval-Augmented Generation with Structured Knowledge Tracing
    SIGKDD 2025 ·
    Rui Li
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  17. LLM-Based Multi-Agent Systems are Scalable Graph Generative Models
    ACL 2025 ·
    Jiarui Ji
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  18. Lighter-X: An Efficient and Plug-and-play Strategy for Graph-based Recommendation through Decoupled Propagation
    VLDB 2025 ·
    Yanping Zheng
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  19. MF-LLM: Simulating Population Decision Dynamics via a Mean-Field Large Language Model Framework
    NeurIPS 2025 ·
    Qirui Mi
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  20. MMRole: A Comprehensive Framework for Developing and Evaluating Multimodal Role-Playing Agents
    ICLR 2025 ·
    Yanqi Dai
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  21. MemBench: Towards More Comprehensive Evaluation on the Memory of LLM-based Agents
    ACL 2025 ·
    Haoran Tan
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  22. MemEngine: A Unified and Modular Library for Developing Advanced Memory of LLM-based Agents
    WWW 2025 ·
    Zeyu Zhang
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  23. MemSim: A Bayesian Simulator for Evaluating Memory of LLM-based Personal Assistants
    NeurIPS 2025 ·
    Zeyu Zhang
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  24. Optimal Transport for Time Series Imputation
    ICLR 2025 ·
    Hao Wang
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  25. Proximity Matters: Local Proximity Enhanced Balancing for Treatment Effect Estimation
    SIGKDD 2025 ·
    Hao Wang
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  26. RecUserSim: A Realistic and Diverse User Simulator for Evaluating Conversational Recommender Systems
    WWW 2025 ·
    Luyu Chen
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  27. Select, Read, and Write: A Multi-Agent Framework of Full-Text-based Related Work Generation
    ACL 2025 ·
    Xiaochuan Liu
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  28. Tackling the Length Barrier: Dynamic Context Browsing for Knowledge-Intensive Task
    SIGKDD 2025 ·
    Hongjin Qian
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  29. The 1st Workshop on LLM Agents for Social Simulation
    CIKM 2025 ·
    Yige Yuan
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  30. Time-o1: Time-Series Forecasting Needs Transformed Label Alignment
    NeurIPS 2025 ·
    Hao Wang
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  31. Towards Effective and Efficient Continual Pre-training of Large Language Models
    ACL 2025 ·
    Jie Chen
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  32. TrendSim: Simulating Trending Topics in Social Media Under Poisoning Attacks with LLM-based Multi-agent System
    NAACL 2025 ·
    Zeyu Zhang
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  33. Unbiased Recommender Learning from Implicit Feedback via Weakly Supervised Learning
    ICML 2025 ·
    Hao Wang
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  34. Uncertainty and Influence aware Reward Model Refinement for Reinforcement Learning from Human Feedback
    ICLR 2025 ·
    Zexu Sun
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  35. A Tutorial on Feature Interpretation in Recommender Systems
    RecSys 2024 ·
    Zhaocheng Du
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  36. Causally Debiased Time-aware Recommendation
    WWW 2024 ·
    Lei Wang
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  37. Debiased Collaborative Filtering with Kernel-Based Causal Balancing
    ICLR 2024 ·
    Haoxuan Li
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  38. Generalizing Knowledge Graph Embedding with Universal Orthogonal Parameterization
    ICML 2024 ·
    Rui Li
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  39. Large Language Model Powered Agents for Information Retrieval
    SIGIR 2024 ·
    An Zhang
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  40. Large Language Model Powered Agents in the Web
    WWW 2024 ·
    Yang Deng
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  41. Large Language Model-based Human-Agent Collaboration for Complex Task Solving
    EMNLP 2024 ·
    Xueyang Feng
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  42. Natural Language Explainable Recommendation with Robustness Enhancement
    SIGKDD 2024 ·
    Jingsen Zhang
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  43. Policy-Based Bayesian Active Causal Discovery with Deep Reinforcement Learning
    SIGKDD 2024 ·
    Heyang Gao
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  44. Reflective Multi-Agent Collaboration based on Large Language Models
    NeurIPS 2024 ·
    Xiaohe Bo
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  45. Relaxing the Accurate Imputation Assumption in Doubly Robust Learning for Debiased Collaborative Filtering
    ICML 2024 ·
    Haoxuan Li
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  46. See or Guess: Counterfactually Regularized Image Captioning
    ACM MM 2024 ·
    Qian Cao
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  47. Simulating Human Society with Large Language Model Agents: City, Social Media, and Economic System
    WWW 2024 ·
    Chen Gao
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  48. Towards Robust Recommendation via Decision Boundary-aware Graph Contrastive Learning
    SIGKDD 2024 ·
    Jiakai Tang
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  49. Towards Tool Use Alignment of Large Language Models
    EMNLP 2024 ·
    Zhiyuan Chen
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  50. Uncovering the Propensity Identification Problem in Debiased Recommendations
    ICDE 2024 ·
    Honglei Zhang
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  51. Understanding Human Preferences: Towards More Personalized Video to Text Generation
    WWW 2024 ·
    Yihan Wu
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  52. Would You Like Your Data to Be Trained? A User Controllable Recommendation Framework
    AAAI 2024 ·
    Lei Wang
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