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arXiv 2408.07331cs.LG
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RSEA-MVGNN:具有可靠结构增强和聚合的多视图图神经网络

RSEA-MVGNN: Multi-View Graph Neural Network with Reliable Structural Enhancement and Aggregation

Financial Intelligence and Financial Engineering Key Laboratory of Sichuan Province, School of Computing and Artificial Intelligence, Southwestern University of Finance and Economics(四川省金融智能与金融工程重点实验室,西南财经大学计算机与人工智能学院);Institute of Artificial Intelligence and Robotics, Xi’an Jiaotong University(西安交通大学人工智能与机器人研究院)

Junyu Chen, Long Shi, Badong Chen

AI总结:

本文提出RSEA-MVGNN,通过主观逻辑估计视图不确定性,实现可靠结构增强和视图质量评估,提升多视图图神经网络的特征聚合效果。

摘要:

图神经网络(GNNs)在学习多视图图数据方面表现出显著成效。在多视图图神经网络框架中,关键挑战在于有效结合不同视图,每个视图具有不同的图结构特征(GSFs)。现有方法主要集中在两个方面:1)优先考虑最重要的GSFs,2)利用GNN进行特征聚合。然而,优先考虑最重要的GSFs可能导致特征多样性受限,现有基于GNN的聚合策略同等对待每个视图而不考虑视图质量。为解决这些问题,我们提出了一种新的多视图图神经网络,具有可靠的结构增强和聚合(RSEA-MVGNN)。首先,我们利用主观逻辑估计视图特定的不确定性。基于此不确定性,我们设计了可靠的结构增强算法,通过特征去相关算法。这种方法使每个增强过程专注于不同的GSFs,从而在增强结构中实现多样的特征表示。其次,模型学习视图特定的信念和不确定性作为观点,这些观点用于评估视图质量。基于这些观点,模型使高质量的视图主导GNN聚合,从而促进表示学习。在五个真实世界数据集上进行的实验结果表明,RSEA-MVGNN优于几种最先进的基于GNN的方法。

英文摘要:

Graph Neural Networks (GNNs) have exhibited remarkable efficacy in learning from multi-view graph data. In the framework of multi-view graph neural networks, a critical challenge lies in effectively combining diverse views, where each view has distinct graph structure features (GSFs). Existing approaches to this challenge primarily focus on two aspects: 1) prioritizing the most important GSFs, 2) utilizing GNNs for feature aggregation. However, prioritizing the most important GSFs can lead to limited feature diversity, and existing GNN-based aggregation strategies equally treat each view without considering view quality. To address these issues, we propose a novel Multi-View Graph Neural Network with Reliable Structural Enhancement and Aggregation (RSEA-MVGNN). Firstly, we estimate view-specific uncertainty employing subjective logic. Based on this uncertainty, we design reliable structural enhancement by feature de-correlation algorithm. This approach enables each enhancement to focus on different GSFs, thereby achieving diverse feature representation in the enhanced structure. Secondly, the model learns view-specific beliefs and uncertainty as opinions, which are utilized to evaluate view quality. Based on these opinions, the model enables high-quality views to dominate GNN aggregation, thereby facilitating representation learning. Experimental results conducted on five real-world datasets demonstrate that RSEA-MVGNN outperforms several state-of-the-art GNN-based methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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