activity
20222025
most citedRethinking Cross-Domain Sequential Recommendation under Open-World Assumptions

32 citations · 74 across the 18 of their papers we have counts for

collaborators

19 papers

cs.IR2025

Token-Controlled Re-ranking for Sequential Recommendation via LLMs

Wenxi Dai, Wujiang Xu, Pinhuan Wang +1

The widespread adoption of Large Language Models (LLMs) as re-rankers is shifting recommender systems towards a user-centric paradigm. However, a significant gap remains: current r…

cs.LG2025

Graph4MM: Weaving Multimodal Learning with Structural Information

Xuying Ning, Dongqi Fu, Tianxin Wei +2

Real-world multimodal data usually exhibit complex structural relationships beyond traditional one-to-one mappings like image-caption pairs. Entities across modalities interact in…

cs.LG2025

LLM as GNN: Graph Vocabulary Learning for Text-Attributed Graph Foundation Models

Xi Zhu, Haochen Xue, Ziwei Zhao +7

Text-Attributed Graphs (TAGs), where each node is associated with text descriptions, are ubiquitous in real-world scenarios. They typically exhibit distinctive structure and domain…

cs.DB2025

OmniRouter: Budget and Performance Controllable Multi-LLM Routing

Kai Mei, Wujiang Xu, Minghao Guo +2

Large language models (LLMs) deliver superior performance but require substantial computational resources and operate with relatively low efficiency, while smaller models can effic…

cs.CL2025

I-MCTS: Enhancing Agentic AutoML via Introspective Monte Carlo Tree Search

Zujie Liang, Feng Wei, Wujiang Xu +3

Recent advancements in large language models (LLMs) have shown remarkable potential in automating machine learning tasks. However, existing LLM-based agents often struggle with low…

cs.CL2025★ 1 cited

iAgent: LLM Agent as a Shield between User and Recommender Systems

Wujiang Xu, Yunxiao Shi, Zujie Liang +6

Traditional recommender systems usually take the user-platform paradigm, where users are directly exposed under the control of the platform's recommendation algorithms. However, th…

cs.CL2025

A-MEM: Agentic Memory for LLM Agents

Wujiang Xu, Zujie Liang, Kai Mei +3

While large language model (LLM) agents can effectively use external tools for complex real-world tasks, they require memory systems to leverage historical experiences. Current mem…

cs.CL2025

Massive Values in Self-Attention Modules are the Key to Contextual Knowledge Understanding

Mingyu Jin, Kai Mei, Wujiang Xu +5

Large language models (LLMs) have achieved remarkable success in contextual knowledge understanding. In this paper, we show that these concentrated massive values consistently emer…

cs.LG2024★ 1 cited

Beyond KAN: Introducing KarSein for Adaptive High-Order Feature Interaction Modeling in CTR Prediction

Yunxiao Shi, Wujiang Xu, Haimin Zhang +2

Modeling high-order feature interactions is crucial for click-through rate (CTR) prediction, yet traditional approaches typically predefine a maximum interaction order and exhausti…

cs.AI2024★ 14 cited

APEER: Automatic Prompt Engineering Enhances Large Language Model Reranking

Can Jin, Hongwu Peng, Shiyu Zhao +7

Large Language Models (LLMs) have significantly enhanced Information Retrieval (IR) across various modules, such as reranking. Despite impressive performance, current zero-shot rel…

cs.CL2024★ 8 cited

MoralBench: Moral Evaluation of LLMs

Jianchao Ji, Yutong Chen, Mingyu Jin +3

In the rapidly evolving field of artificial intelligence, large language models (LLMs) have emerged as powerful tools for a myriad of applications, from natural language processing…

cs.LG2024★ 1 cited

Fine-Grained Dynamic Framework for Bias-Variance Joint Optimization on Data Missing Not at Random

Mingming Ha, Xuewen Tao, Wenfang Lin +3

In most practical applications such as recommendation systems, display advertising, and so forth, the collected data often contains missing values and those missing values are gene…

cs.IR2024★ 1 cited

iVAE: Interest Information Augmentation with Variational Regularizers for Cross-Domain Sequential Recommendation

Xuying Ning, Wujiang Xu, Tianxin Wei +1

Cross-Domain Sequential Recommendation (CDSR) leverages user behaviors across multiple domains to mitigate data sparsity and cold-start challenges in Single-Domain Sequential Recom…

cs.IR2024★ 3 cited

SLMRec: Distilling Large Language Models into Small for Sequential Recommendation

Wujiang Xu, Qitian Wu, Zujie Liang +5

Sequential Recommendation (SR) task involves predicting the next item a user is likely to interact with, given their past interactions. The SR models examine the sequence of a user…

cs.OS2024★ 9 cited

AIOS: LLM Agent Operating System

Kai Mei, Xi Zhu, Wujiang Xu +7

LLM-based intelligent agents face significant deployment challenges, particularly related to resource management. Allowing unrestricted access to LLM or tool resources can lead to…

cs.IR2023

Towards Open-world Cross-Domain Sequential Recommendation: A Model-Agnostic Contrastive Denoising Approach

Wujiang Xu, Xuying Ning, Wenfang Lin +7

Cross-domain sequential recommendation (CDSR) aims to address the data sparsity problems that exist in traditional sequential recommendation (SR) systems. The existing approaches a…

cs.IR2023★ 32 cited

Rethinking Cross-Domain Sequential Recommendation under Open-World Assumptions

Wujiang Xu, Qitian Wu, Runzhong Wang +5

Cross-Domain Sequential Recommendation (CDSR) methods aim to tackle the data sparsity and cold-start problems present in Single-Domain Sequential Recommendation (SDSR). Existing CD…

cs.IR2023★ 2 cited

Neural Node Matching for Multi-Target Cross Domain Recommendation

Wujiang Xu, Shaoshuai Li, Mingming Ha +5

Multi-Target Cross Domain Recommendation(CDR) has attracted a surge of interest recently, which intends to improve the recommendation performance in multiple domains (or systems) s…

cs.CV2022★ 2 cited

MHSCNet: A Multimodal Hierarchical Shot-aware Convolutional Network for Video Summarization

Wujiang Xu, Runzhong Wang, Xiaobo Guo +6

Video summarization intends to produce a concise video summary by effectively capturing and combining the most informative parts of the whole content. Existing approaches for video…