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  Identifying confounders using additive noise models

Janzing, D., Peters, J., Mooij, J., & Schölkopf, B. (2009). Identifying confounders using additive noise models. In 25th Conference on Uncertainty in Artificial Intelligence (UAI 2009) (pp. 249-257). Corvallis, OR, USA: AUAI Press.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-C481-3 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-C482-1
Genre: Conference Paper

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 Creators:
Janzing, D1, Author           
Peters, J2, Author           
Mooij, JM2, Author           
Schölkopf, B2, Author           
Bilmes, Editor
J., Editor
Ng, A. Y., Editor
McAllester, D. A., Editor
Affiliations:
1Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497795              
2Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497795              

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 Abstract: We propose a method for inferring the existence of a latent common cause ("confounder") of two observed random variables. The method assumes that the two effects of the confounder are (possibly nonlinear) functions of the confounder plus independent, additive noise. We discuss under which conditions the model is identifiable (up to an arbitrary reparameterization of the confounder) from the joint distribution of the effects. We state and prove a theoretical result that provides evidence for the conjecture that the model is generically identifiable under suitable technical conditions. In addition, we propose a practical method to estimate the confounder from a finite i.i.d. sample of the effects and illustrate that the method works well on both simulated and real-world data.

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 Dates: 2009-06
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: ISBN: 978-0-9749039-5-8
URI: http://www.cs.mcgill.ca/~uai2009/
BibTex Citekey: 5903
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Title: 25th Conference on Uncertainty in Artificial Intelligence (UAI 2009)
Place of Event: Montréal, Canada
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Title: 25th Conference on Uncertainty in Artificial Intelligence (UAI 2009)
Source Genre: Proceedings
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Publ. Info: Corvallis, OR, USA : AUAI Press
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 249 - 257 Identifier: -