期刊
JOURNAL OF MACHINE LEARNING RESEARCH
卷 23, 期 -, 页码 -出版社
MICROTOME PUBL
关键词
Causal Inference; Generative Adversarial Networks; Graphical Models
SAM is a causal discovery method that utilizes both conditional independencies and distributional asymmetries to infer the underlying causal structure. It involves a game between players estimating variable distributions conditionally and an adversary discriminating generated data from original data.
A new causal discovery method, Structural Agnostic Modeling (SAM), is presented in this paper. Leveraging both conditional independencies and distributional asymmetries, SAM aims to find the underlying causal structure from observational data. The approach is based on a game between different players estimating each variable distribution conditionally to the others as a neural net, and an adversary aimed at discriminating the generated data against the original data. A learning criterion combining distribution estimation, sparsity and acyclicity constraints is used to enforce the optimization of the graph structure and parameters through stochastic gradient descent. SAM is extensively experimentally validated on synthetic and real data.
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