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arXiv 1907.09565stat.MEstat.APstat.COstat.ML
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矩阵-变量- $t$分布分类

Classification with the matrix-variate-$t$ distribution

Geoffrey Z. Thompson, Ranjan Maitra, William Q. Meeker, Ashraf Bastawros

摘要:

矩阵变量分布可以直观地模拟多变量时间序列、时空或重复测量应用中出现的矩阵值观测的依赖结构。本文提出了一种用于矩阵变量$t$分布判别分析和分类的期望最大化算法。该方法在模拟数据集上或应用于骨折表面的法医匹配或功能磁共振,卫星或手势图像的分类时显示出希望。

英文摘要:

Matrix-variate distributions can intuitively model the dependence structure of matrix-valued observations that arise in applications with multivariate time series, spatio-temporal or repeated measures. This paper develops an Expectation-Maximization algorithm for discriminant analysis and classification with matrix-variate $t$-distributions. The methodology shows promise on simulated datasets or when applied to the forensic matching of fractured surfaces or the classification of functional Magnetic Resonance, satellite or hand gestures images.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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