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New method uses Wasserstein distance for ICA and causal inference

Researchers have developed a novel approach to Independent Component Analysis (ICA) and causal inference using the squared 2-Wasserstein distance to the standard Gaussian distribution as a measure of non-Gaussianity. This method allows for the exact identification of the ICA unmixing matrix and provides a characterization of causal orders in Linear Non-Gaussian Acyclic Models (LiNGAM). The paper details empirical estimators, convergence bounds, and three practical solvers for ICA and causal order search, demonstrating competitive performance and releasing open-source implementations. AI

IMPACT Introduces a novel statistical method applicable to machine learning tasks like source separation and causal discovery.

RANK_REASON The cluster contains an academic paper detailing a new methodology in machine learning and statistics.

Read on arXiv stat.ML →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

New method uses Wasserstein distance for ICA and causal inference

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COVERAGE [2]

  1. arXiv stat.ML TIER_1 English(EN) · F\'elix Laplante, Christophe Ambroise, Pierre Humbert ·

    Contrast-Free ICA and Causal Inference via Wasserstein Distances to the Gaussian

    arXiv:2607.12832v1 Announce Type: new Abstract: We study the squared $2$-Wasserstein distance to the standard Gaussian as a non-Gaussianity criterion and use it for linear Independent Component Analysis (ICA) and causal inference in Linear Non-Gaussian Acyclic Models (LiNGAM). Th…

  2. arXiv stat.ML TIER_1 English(EN) · Pierre Humbert ·

    Contrast-Free ICA and Causal Inference via Wasserstein Distances to the Gaussian

    We study the squared $2$-Wasserstein distance to the standard Gaussian as a non-Gaussianity criterion and use it for linear Independent Component Analysis (ICA) and causal inference in Linear Non-Gaussian Acyclic Models (LiNGAM). The analysis relies on a strict inequality between…