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Communication-Efficient Distributed Estimation and Computation Using Skew-Normal Distribution

delete2025-10-01
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PRE
AI
D
Danlu Wang
Y
Yanyan Liu
C
Chao Ma *
DOI:10.1007/s10114-025-3520-zdelete
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Abstract

Abstract

En 中文
In this paper, we introduce a communication-efficient distributed estimation method tailored for massive datasets exhibiting skewness. The data are stored across multiple machines. We construct a surrogate likelihood which only need to transfer subgradient from local machines to approximate higher-order derivatives of the global likelihood. An enhanced EM algorithm is developed for computations. The proposed method not only addresses the non-normality of data by utilizing first-order gradient information in each transmission, ensuring low communication overhead, but also ensures privacy protection. Simulation studies illustrate the superior performance of the proposed methods.
Keywords:
Skew-normal distribution
massive data
distributed estimation

Journal

A
ACTA MATHEMATICA SINICA-ENGLISH SERIES
IF:
0.9
Papers:
92
Citations:
0

Organization

W
Wuhan University
Scholars:
5.0K
Papers: 1.7K
Citations: 10.0W