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A Maximum Entropy Copula Model for Mixed Data: Representation, Estimation, and Applications

Subhadeep, Mukhopadhyay

arXiv 21 Aug 2021 · Mathematics — Statistics Theory · publishedJournal of nonparametric statistics (2022) · 1 citations (OpenAlex)

arXiv:2108.09438 · PDF · DOI · OpenAlex · Extracted main text

Abstract

A new nonparametric model of maximum-entropy (MaxEnt) copula density function is proposed, which offers the following advantages: (i) it is valid for mixed random vector. By `mixed' we mean the method works for any combination of discrete or continuous variables in a fully automated manner; (ii) it yields a bonafide density estimate with intepretable parameters. By `bonafide' we mean the estimate guarantees to be a non-negative function, integrates to 1; and (iii) it plays a unifying role in our understanding of a large class of statistical methods. Our approach utilizes modern machinery of nonparametric statistics to represent and approximate log-copula density function via LP-Fourier transform. Several real-data examples are also provided to explore the key theoretical and practical implications of the theory.

Citation extraction

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Most heavily cited references

The works this paper leans on most, across its whole bibliography — not restricted to papers in our corpus. Ranked by composite intensity, which combines how often a work is mentioned, how many sections mention it, and how much of that falls in the main text rather than the appendix.

ReferenceIntensityMentionsSectionsMain text
1Mukhopadhyay, S. and E. Parzen (2020) Nonparametric universal copula modeling0.9416383%
agresti2014unmatched citation key agresti20140.64422100%
goodman1991unmatched citation key goodman19910.58531100%
4S. Mukhopadhyay, E. Parzen. and S. N. Lahiri (2012) From data to constraints0.5113233%
good96unmatched citation key good960.51121100%
Benzecri91unmatched citation key Benzecri910.40511100%
D13aunmatched citation key D13a0.40511100%
D21discreteunmatched citation key D21discrete0.40511100%
D22ADMunmatched citation key D22ADM0.40511100%
Deep17LPModeunmatched citation key Deep17LPMode0.40511100%

Showing the top 10 of 41 scored citations. 8 of these could not be matched to a bibliography entry, so only the citation key is shown.