通过分解的决定点过程,通过多种负样本的卷积神经网络绘制图形.
IEEE transactions on neural networks and learning systems
|September 19, 2023
概括
本研究引入了一种用于图形表示学习的新方法,该方法使用来自确定点过程 (DPP) 的多样化的负样本. 该方法增强了图形卷积网络 (GCNs),并对抗过度平滑,以获得更好的节点分类.
科学领域:
- 机器学习 机器学习
- 图形表示学习学习学习图形表示学习
- 人工智能的人工智能
背景情况:
- 图形卷积神经网络 (GCNs) 擅长通过消息传递学习图形表示.
- 目前的GCN主要使用相邻的节点作为积极样本,忽略了来自非相邻节点的有价值信息.
- 过度平滑是GCN中常见的问题,限制了表示质量.
研究的目的:
- 通过结合多样化的负样本来开发图形表示学习的新方法.
- 通过解决抽样选择的局限性来提高GCN的效率和有效性.
- 为了减轻图形神经网络中的过度平滑问题.
主要方法:
- 在确定点过程 (DPP) 中利用质量多样性分解,从非邻近节点生成多样化的负样本.
- 将图形结构和节点表示纳入负样本分布中.
- 提出了一种新的基于最短路径的方法,以提高DPP采样的计算效率.
主要成果:
- 提出的方法显著提高了对节点分类任务的标准表示学习的性能.
- 多样化的负样本的整合有效地缓解了GCN中的过度平滑问题.
- 经验评估表明,新方法的优势超过现有方法.
结论:
- 结合多样化的负样本的新方法提高了GCN的性能,并解决了过度光滑.
- 基于最短路径的DPP采样提供了一个计算效率高的替代方案.
- 这项研究为推进图形表示学习提供了一个有希望的方向.
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