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arXiv 2005.08543stat.MEstat.ML
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具有潜在共同原因的时间序列因果特征选择的充要条件

Necessary and sufficient conditions for causal feature selection in time series with latent common causes

Atalanti A. Mastakouri, Bernhard Schölkopf, Dominik Janzing

摘要:

我们研究了时间序列的直接原因和间接原因的识别问题,并在存在隐变量的情况下给出了条件,在一定的图形约束下证明了这些条件的充分必要性。我们的理论结果和估计算法需要两个条件独立性测试,每个观察到的候选时间序列,以确定它是否是一个观察到的目标时间序列的原因。我们在模拟中提供实验结果,以及真实数据。我们的研究结果表明,我们的方法导致非常低的假阳性和相对较低的假阴性率,优于广泛使用的格兰杰因果关系。

英文摘要:

We study the identification of direct and indirect causes on time series and provide conditions in the presence of latent variables, which we prove to be necessary and sufficient under some graph constraints. Our theoretical results and estimation algorithms require two conditional independence tests for each observed candidate time series to determine whether or not it is a cause of an observed target time series. We provide experimental results in simulations, as well as real data. Our results show that our method leads to very low false positives and relatively low false negative rates, outperforming the widely used Granger causality.

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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