LIPIcs.AofA.2020.23.pdf
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Hidden Independence in Unstructured Probabilistic Models
Authors
Antony Pearson 
,
Manuel E. Lladser
-
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Volume:
31st International Conference on Probabilistic, Combinatorial and Asymptotic Methods for the Analysis of Algorithms (AofA 2020)
Series: Leibniz International Proceedings in Informatics (LIPIcs)
Conference: International Conference on Probabilistic, Combinatorial and Asymptotic Methods for the Analysis of Algorithms (AofA) - License:
Creative Commons Attribution 3.0 Unported license
- Publication Date: 2020-06-10
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Author Details
- Department of Applied Mathematics, University of Colorado Boulder, CO, The United States
- IQ Biology Program, BioFrontiers Institute, University of Colorado Boulder, CO, The United States
Acknowledgements
We want to thank three anonymous referees for their careful reading and insightful comments that helped improve the quality of our manuscript.
Cite As Get BibTex
Antony Pearson and Manuel E. Lladser. Hidden Independence in Unstructured Probabilistic Models. In 31st International Conference on Probabilistic, Combinatorial and Asymptotic Methods for the Analysis of Algorithms (AofA 2020). Leibniz International Proceedings in Informatics (LIPIcs), Volume 159, pp. 23:1-23:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)
https://doi.org/10.4230/LIPIcs.AofA.2020.23
Abstract
We describe a novel way to represent the probability distribution of a random binary string as a mixture having a maximally weighted component associated with independent (though not necessarily identically distributed) Bernoulli characters. We refer to this as the latent independent weight of the probabilistic source producing the string, and derive a combinatorial algorithm to compute it. The decomposition we propose may serve as an alternative to the Boolean paradigm of hypothesis testing, or to assess the fraction of uncorrupted samples originating from a source with independent marginal distributions. In this sense, the latent independent weight quantifies the maximal amount of independence contained within a probabilistic source, which, properly speaking, may not have independent marginal distributions.
Subject Classification
ACM Subject Classification
- Mathematics of computing → Probabilistic representations
- Mathematics of computing → Dimensionality reduction
- Mathematics of computing → Discrete mathematics
Keywords
- Bayesian networks
- contamination
- latent weights
- mixture models
- independence
- symbolic data
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References
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