Imprecise Gaussian discriminant classification

作者:

Highlights:

• We robustify Gaussian discriminant analysis by considering sets of estimates.

• We use near-ignorance priors to derive bounding boxes on mean estimates.

• We discuss the computational issue for generic and diagonal covariance matrices.

• We make a full experimental study showing the benefits of using imprecise estimates.

• We make a first exploration of the benefits of using the model in non i.i.d. situations.

摘要

•We robustify Gaussian discriminant analysis by considering sets of estimates.•We use near-ignorance priors to derive bounding boxes on mean estimates.•We discuss the computational issue for generic and diagonal covariance matrices.•We make a full experimental study showing the benefits of using imprecise estimates.•We make a first exploration of the benefits of using the model in non i.i.d. situations.

论文关键词:Discriminant analysis,Robust Bayesian,Classification,Near-ignorance

论文评审过程:Received 25 March 2020, Revised 17 September 2020, Accepted 29 October 2020, Available online 1 November 2020, Version of Record 30 January 2021.

论文官网地址:https://doi.org/10.1016/j.patcog.2020.107739