解决网络事件序列中并发因果关系的鲁棒发现难题
Resilient Concurrent Causal Discovery for Topological Event Sequences

- 引入带影响感知的超边注意力机制,融合事件时长与网络先验知识
- 通过掩码自监督优化,使模型在缺失数据下仍能准确恢复事件类型
- 适用于电信网络等真实场景,对不完整数据有强鲁棒性
拓扑事件序列的因果发现对保障网络可靠性至关重要。现有方法难以捕捉并发事件引发的复杂因果关系,且对不完整事件序列缺乏鲁棒性。为此,我们提出一种鲁棒的并发因果发现方法(RCCD),可从拓扑事件序列中稳健学习因果图。首先,设计影响感知的超边因果注意力机制,将事件时长融入嵌入表示,通过超边因果卷积聚合并发事件特征,并注入网络先验知识以捕捉复杂的多对一因果交互。其次,构建基于掩码的交替因果优化框架,通过自监督掩码重建迫使模型基于上下文恢复被遮蔽的事件类型,从而提升预测器对缺失数据的鲁棒性。在模拟和真实电信网络数据集上进行的大量实验表明,该方法在准确率和鲁棒性上均显著优于现有最先进方法,更适用于真实电信网络环境。
原文摘要 · Abstract (English)
Causal discovery on topological event sequences is crucial for ensuring the reliability of networks. However, existing methods struggle to capture the complex causal relationships arising from concurrent events and lack robustness to incomplete event sequences. To address these issues, we propose a resilient concurrent causal discovery method, termed RCCD, enabling robust learning of causal graphs from topological event sequences. Specifically, we first introduce an influence-aware hyperedge causal attention mechanism, which incorporates event duration into the embedding representation, aggregates concurrent event features via hyperedge causal convolution, and injects network prior knowledge to capture the complex many-to-one causal interactions. Furthermore, we design a masked-based alternating causal optimization framework, which forces the model to recover masked event types based on context through self-supervised mask reconstruction, thereby enhancing the resilience of the predictor to missing data. To validate the effectiveness of our method, we conduct extensive experiments on both simulated and real-world telecommunication network datasets. Experimental results demonstrate that the proposed method significantly outperforms existing state-of-the-art methods in both accuracy and robustness, making it more suitable for real-world telecommunication network environments.
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