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作者:

Zhang, Qian (Zhang, Qian.) | Zhao, Xinyuan (Zhao, Xinyuan.) (学者:赵欣苑) | Ding, Chao (Ding, Chao.)

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EI Scopus SCIE

摘要:

Euclidean embedding from noisy observations containing outlier errors is an important and challenging problem in statistics and machine learning. Many existing methods would struggle with outliers due to a lack of detection ability. In this paper, we propose a matrix optimization based embedding model that can produce reliable embeddings and identify the outliers jointly. We show that the estimators obtained by the proposed method satisfy a non-asymptotic risk bound, implying that the model provides a high accuracy estimator with high probability when the order of the sample size is roughly the degree of freedom up to a logarithmic factor. Moreover, we show that under some mild conditions, the proposed model also can identify the outliers without any prior information with high probability. Finally, numerical experiments demonstrate that the matrix optimization-based model can produce configurations of high quality and successfully identify outliers even for large networks.

关键词:

Error bound Euclidean embedding Low-rank matrix Matrix optimizationg Outliers

作者机构:

  • [ 1 ] [Zhang, Qian]Beijing Univ Technol, Coll Appl Sci, Beijing, Peoples R China
  • [ 2 ] [Zhao, Xinyuan]Beijing Univ Technol, Coll Appl Sci, Beijing, Peoples R China
  • [ 3 ] [Ding, Chao]Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing, Peoples R China

通讯作者信息:

  • [Ding, Chao]Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing, Peoples R China

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来源 :

COMPUTATIONAL OPTIMIZATION AND APPLICATIONS

ISSN: 0926-6003

年份: 2021

期: 2

卷: 79

页码: 235-271

2 . 2 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:87

JCR分区:2

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