放下边缘并适应:公平性强制执行对图形神经网络的微调
Indro Spinelli1, Riccardo Bianchini2, Simone Scardapane3
1Department of Computer Science (DI), Sapienza University of Rome, Via Salaria 113, 00198 Rome, Italy.
概括
这项研究引入了一种新方法,即Drop Unfair Edges and Adapt (DEA),以使图形神经网络在链接预测中更加公平. 通过调整网络连接和模型参数,DEA提高了准确性和公平性.
科学领域:
- 网络科学 网络科学
- 机器学习是机器学习.
- 人工智能的人工智能是人工智能.
背景情况:
- 图形表示学习被广泛用于网络科学任务.
- 链接预测算法可以通过使某些人口群体处于不利地位来加剧社交网络隔离.
- 现有的方法往往无法解决网络分析中的公平性问题.
研究的目的:
- 为图形神经网络提出一种新的微调策略,以确保链接预测的公平性.
- 减轻链接预测算法增加社交网络隔离的趋势.
- 提高链接预测模型的准确性和公平性.
主要方法:
- 引入一种名为Drop Unfair Edges and Adapt (DEA) 的微调策略. 引入一个名为DEA的微调策略.
- 专门为链接预测公平性开发两个基于共差的约束.
- 利用这些约束来优化一个离散的,可学习的相邻矩阵,以实现"公平"的网络表示.
- 适应模型参数与对相邻矩阵的修改同时进行.
主要成果:
- 在五个现实世界数据集上证明了DEA的有效性.
- 在链接预测任务的准确性和公平性方面取得了改进.
- 一项废除研究证实了邻近矩阵训练算法的性能优势.
- 分析表明,结合约束和相邻矩阵训练可以获得最佳结果.
结论:
- 拟议的DEA方法有效地提高了基于图形神经网络的链接预测的公平性.
- 基于共变量的约束和可学习的相邻矩阵是最佳性能的关键组成部分.
- 这种方法为开发公平的网络分析工具提供了一个有希望的方向.
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