Search Results for author: Changjun Fan

Found 9 papers, 3 papers with code

Finding Influencers in Complex Networks: An Effective Deep Reinforcement Learning Approach

no code implementations9 Sep 2023 Changan Liu, Changjun Fan, Zhongzhi Zhang

Maximizing influences in complex networks is a practically important but computationally challenging task for social network analysis, due to its NP- hard nature.

reinforcement-learning

The Expressive Power of Graph Neural Networks: A Survey

no code implementations16 Aug 2023 Bingxu Zhang, Changjun Fan, Shixuan Liu, Kuihua Huang, Xiang Zhao, Jincai Huang, Zhong Liu

Graph neural networks (GNNs) are effective machine learning models for many graph-related applications.

Subgraph Counting

Inductive Meta-path Learning for Schema-complex Heterogeneous Information Networks

no code implementations8 Jul 2023 Shixuan Liu, Changjun Fan, Kewei Cheng, Yunfei Wang, Peng Cui, Yizhou Sun, Zhong Liu

Heterogeneous Information Networks (HINs) are information networks with multiple types of nodes and edges.

Relation

Learning from History: Modeling Temporal Knowledge Graphs with Sequential Copy-Generation Networks

1 code implementation15 Dec 2020 Cunchao Zhu, Muhao Chen, Changjun Fan, Guangquan Cheng, Yan Zhan

Since such temporal knowledge graphs often suffer from incompleteness, it is important to develop time-aware representation learning models that help to infer the missing temporal facts.

Representation Learning

Multilingual Knowledge Graph Completion via Ensemble Knowledge Transfer

1 code implementation Findings of the Association for Computational Linguistics 2020 Xuelu Chen, Muhao Chen, Changjun Fan, Ankith Uppunda, Yizhou Sun, Carlo Zaniolo

Predicting missing facts in a knowledge graph (KG) is a crucial task in knowledge base construction and reasoning, and it has been the subject of much research in recent works using KG embeddings.

Knowledge Graph Completion Self-Learning +1

Pre-Training Graph Neural Networks for Generic Structural Feature Extraction

no code implementations31 May 2019 Ziniu Hu, Changjun Fan, Ting Chen, Kai-Wei Chang, Yizhou Sun

With the proposed pre-training procedure, the generic structural information is learned and preserved, thus the pre-trained GNN requires less amount of labeled data and fewer domain-specific features to achieve high performance on different downstream tasks.

Denoising

Learning to Identify High Betweenness Centrality Nodes from Scratch: A Novel Graph Neural Network Approach

1 code implementation24 May 2019 Changjun Fan, Li Zeng, Yuhui Ding, Muhao Chen, Yizhou Sun, Zhong Liu

By training on small-scale networks, the learned model is capable of assigning relative BC scores to nodes for any unseen networks, and thus identifying the highly-ranked nodes.

Community Detection

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