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Redefining the Shortest Path Problem Formulation of the Linear Non-Gaussian Acyclic Model: Pairwise Likelihood Ratios, Prior Knowledge, and Path Enumeration
April 19, 2024, 4:41 a.m. | Hans Jarett J. Ong, Brian Godwin S. Lim
cs.LG updates on arXiv.org arxiv.org
Abstract: Effective causal discovery is essential for learning the causal graph from observational data. The linear non-Gaussian acyclic model (LiNGAM) operates under the assumption of a linear data generating process with non-Gaussian noise in determining the causal graph. Its assumption of unmeasured confounders being absent, however, poses practical limitations. In response, empirical research has shown that the reformulation of LiNGAM as a shortest path problem (LiNGAM-SPP) addresses this limitation. Within LiNGAM-SPP, mutual information is chosen to …
abstract arxiv causal cs.lg data discovery graph knowledge likelihood linear noise path prior process stat.me type
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