arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1301.7370cs.AI
收藏

因果模型的半马氏等价性

On the Semi-Markov Equivalence of Causal Models

University of Pittsburgh(匹兹堡大学)

Benoit Desjardins

摘要:

在有限马尔可夫等价类的因果充分模型表示的有向无环图的结构的可变性已得到充分的特点。在没有因果充分性的情况下,无限半马尔可夫等价类模型的特征仅在于等价类中的每个模型都具有相同的边际统计依赖性。在本文中,我们研究了半马尔可夫等价类内因果模型结构的变异性,并提出了一个系统的方法来构建模型,需要任何特定的边际统计依赖。

英文摘要:

The variability of structure in a finite Markov equivalence class of causally sufficient models represented by directed acyclic graphs has been fully characterized. Without causal sufficiency, an infinite semi-Markov equivalence class of models has only been characterized by the fact that each model in the equivalence class entails the same marginal statistical dependencies. In this paper, we study the variability of structure of causal models within a semi-Markov equivalence class and propose a systematic approach to construct models entailing any specific marginal statistical dependencies.

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。

↑