DREAM:用于无监督图域适应的双变量框架
概括
双变义语义图表挖掘 (DREAM) 通过整合隐式和显式结构语义来解决无监督图域的适应. 这种方法提高了图形分类的准确性,克服了传统消息传递神经网络 (MPNNs) 的局限性.
科学领域:
- 图表 机器学习 机器学习
- 人工智能的人工智能
- 数据挖掘 数据挖掘
背景情况:
- 图形分类在机器学习中至关重要,通常使用消息传递神经网络 (MPNNs).
- MPNN默认地学习拓语义,但在不受监督的域适应中与域移动和有限的标签作斗争.
- 现有的方法在提取全面的图形结构语义方面面临挑战.
研究的目的:
- 为无监督的图域适应提出双变义语义图形挖掘 (DREAM).
- 结合隐式和显式的图形结构语义,以改善图形表示.
- 在域调整场景中增强图形分类模型的稳定性和准确性.
主要方法:
- DREAM采用双分支架构:一个隐式语义的消息传递分支,一个显式高阶结构语义的路径聚合分支.
- 预期最大化 (EM) 风格的变化框架用于两个分支机构的联合培训.
- E步构建了一个图的图表以捕捉域间的相关性,而M步改进了MPNNs.
主要成果:
- 拟议的DREAM方法与基准数据集的现有基线相比,显示出更高的性能.
- 隐式和显式语义的联合优化有效地改善了图形分类.
- 实验验证证证实了DREAM方法在无监督域适应中的有效性.
结论:
- 通过利用互补的图形结构语义,DREAM为无监督图域适应提供了一个有效的解决方案.
- 显式和隐式学习路径的整合增强了图形神经网络的概括能力.
- 这项研究证实了DREAM的优势,为更强大的图形分类模型铺平了道路.
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