Search Results for author: Yuanchen Bei

Found 19 papers, 7 papers with code

FilterLLM: Text-To-Distribution LLM for Billion-Scale Cold-Start Recommendation

no code implementations24 Feb 2025 Ruochen Liu, Hao Chen, Yuanchen Bei, Zheyu Zhou, Lijia Chen, Qijie Shen, Feiran Huang, Fakhri Karray, Senzhang Wang

Specifically, we present FilterLLM, a framework that extends the next-word prediction capabilities of LLMs to billion-scale filtering tasks.

Large Language Model Recommendation Systems

A Survey of Graph Retrieval-Augmented Generation for Customized Large Language Models

1 code implementation21 Jan 2025 Qinggang Zhang, Shengyuan Chen, Yuanchen Bei, Zheng Yuan, Huachi Zhou, Zijin Hong, Junnan Dong, Hao Chen, Yi Chang, Xiao Huang

Large language models (LLMs) have demonstrated remarkable capabilities in a wide range of tasks, yet their application to specialized domains remains challenging due to the need for deep expertise.

RAG Text Retrieval

Correlation-Aware Graph Convolutional Networks for Multi-Label Node Classification

1 code implementation26 Nov 2024 Yuanchen Bei, Weizhi Chen, Hao Chen, Sheng Zhou, Carl Yang, Jiapei Fan, Longtao Huang, Jiajun Bu

Multi-label node classification is an important yet under-explored domain in graph mining as many real-world nodes belong to multiple categories rather than just a single one.

Classification Graph Mining +1

Graph Cross-Correlated Network for Recommendation

no code implementations2 Nov 2024 Hao Chen, Yuanchen Bei, Wenbing Huang, Shengyuan Chen, Feiran Huang, Xiao Huang

Encoding all subgraph information into single vectors and inferring user-item relations with dot products can weaken the semantic information between user and item subgraphs, thus leaving untapped potential.

Click-Through Rate Prediction Collaborative Filtering +1

CLR-Bench: Evaluating Large Language Models in College-level Reasoning

no code implementations23 Oct 2024 Junnan Dong, Zijin Hong, Yuanchen Bei, Feiran Huang, Xinrun Wang, Xiao Huang

While emerging benchmarks have been proposed to evaluate LLMs in various domains such as mathematics and computer science, they merely measure the accuracy in terms of the final prediction on multi-choice questions.

Graph Neural Patching for Cold-Start Recommendations

no code implementations18 Oct 2024 Hao Chen, Yu Yang, Yuanchen Bei, Zefan Wang, Yue Xu, Feiran Huang

To this end, we introduce Graph Neural Patching for Cold-Start Recommendations (GNP), a customized GNN framework with dual functionalities: GWarmer for modeling collaborative signal on existing warm users/items and Patching Networks for simulating and enhancing GWarmer's performance on cold-start recommendations.

Recommendation Systems

Feedback Reciprocal Graph Collaborative Filtering

no code implementations5 Aug 2024 Weijun Chen, Yuanchen Bei, Qijie Shen, Hao Chen, Xiao Huang, Feiran Huang

Training graph collaborative filtering models in the absence of distinction between them can lead to the recommendation of unfascinating items to users.

Collaborative Filtering Contrastive Learning +1

Better Late Than Never: Formulating and Benchmarking Recommendation Editing

1 code implementation6 Jun 2024 Chengyu Lai, Sheng Zhou, Zhimeng Jiang, Qiaoyu Tan, Yuanchen Bei, Jiawei Chen, Ningyu Zhang, Jiajun Bu

This paper introduces a novel and significant task termed recommendation editing, which focuses on modifying known and unsuitable recommendation behaviors.

Benchmarking Recommendation Systems

Revisiting the Message Passing in Heterophilous Graph Neural Networks

1 code implementation28 May 2024 Zhuonan Zheng, Yuanchen Bei, Sheng Zhou, Yao Ma, Ming Gu, Hongjia Xu, Chengyu Lai, Jiawei Chen, Jiajun Bu

Based on HTMP and empirical analysis, we reveal that the success of message passing in existing HTGNNs is attributed to implicitly enhancing the compatibility matrix among classes.

Graph Mining

Guarding Graph Neural Networks for Unsupervised Graph Anomaly Detection

no code implementations25 Apr 2024 Yuanchen Bei, Sheng Zhou, Jinke Shi, Yao Ma, Haishuai Wang, Jiajun Bu

Recent advances have utilized Graph Neural Networks (GNNs) to learn effective node representations by aggregating information from neighborhoods.

Graph Anomaly Detection

Large Language Model Simulator for Cold-Start Recommendation

no code implementations14 Feb 2024 Feiran Huang, Yuanchen Bei, Zhenghang Yang, Junyi Jiang, Hao Chen, Qijie Shen, Senzhang Wang, Fakhri Karray, Philip S. Yu

While warm items benefit from historical user behaviors, cold items rely solely on content features, limiting their recommendation performance and impacting user experience and revenue.

Collaborative Filtering Language Modeling +4

Multi-Behavior Collaborative Filtering with Partial Order Graph Convolutional Networks

1 code implementation12 Feb 2024 Yijie Zhang, Yuanchen Bei, Hao Chen, Qijie Shen, Zheng Yuan, Huan Gong, Senzhang Wang, Feiran Huang, Xiao Huang

POG defines the partial order relation of multiple behaviors and models behavior combinations as weighted edges to merge separate behavior graphs into a joint POG.

Collaborative Filtering Recommendation Systems

Macro Graph Neural Networks for Online Billion-Scale Recommender Systems

1 code implementation26 Jan 2024 Hao Chen, Yuanchen Bei, Qijie Shen, Yue Xu, Sheng Zhou, Wenbing Huang, Feiran Huang, Senzhang Wang, Xiao Huang

Predicting Click-Through Rate (CTR) in billion-scale recommender systems poses a long-standing challenge for Graph Neural Networks (GNNs) due to the overwhelming computational complexity involved in aggregating billions of neighbors.

Recommendation Systems

Reinforcement Neighborhood Selection for Unsupervised Graph Anomaly Detection

no code implementations9 Dec 2023 Yuanchen Bei, Sheng Zhou, Qiaoyu Tan, Hao Xu, Hao Chen, Zhao Li, Jiajun Bu

To address these issues, we utilize the advantages of reinforcement learning in adaptively learning in complex environments and propose a novel method that incorporates Reinforcement neighborhood selection for unsupervised graph ANomaly Detection (RAND).

Graph Anomaly Detection Representation Learning

Alleviating Behavior Data Imbalance for Multi-Behavior Graph Collaborative Filtering

no code implementations12 Nov 2023 Yijie Zhang, Yuanchen Bei, Shiqi Yang, Hao Chen, Zhiqing Li, Lijia Chen, Feiran Huang

To this end, we propose IMGCF, a simple but effective model to alleviate behavior data imbalance for multi-behavior graph collaborative filtering.

Collaborative Filtering Multi-Task Learning +1

Modeling Spatiotemporal Periodicity and Collaborative Signal for Local-Life Service Recommendation

no code implementations22 Sep 2023 Huixuan Chi, Hao Xu, Mengya Liu, Yuanchen Bei, Sheng Zhou, Danyang Liu, Mengdi Zhang

(2) spatiotemporal collaborative signal, which indicates similar users have similar preferences at specific locations and times.

Recommendation Systems

CPDG: A Contrastive Pre-Training Method for Dynamic Graph Neural Networks

no code implementations6 Jul 2023 Yuanchen Bei, Hao Xu, Sheng Zhou, Huixuan Chi, Haishuai Wang, Mengdi Zhang, Zhao Li, Jiajun Bu

Dynamic graph data mining has gained popularity in recent years due to the rich information contained in dynamic graphs and their widespread use in the real world.

Flattened Graph Convolutional Networks For Recommendation

no code implementations25 Sep 2022 Yue Xu, Hao Chen, Zengde Deng, Yuanchen Bei, Feiran Huang

Third, we propose a layer ensemble technique which improves the expressiveness of the learned representations by assembling the layer-wise neighborhood representations at the final layer.

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