矩阵的扰动与非负秩:面向统计模型
组合数学
2011-07-21 v3 交换代数
概率论
统计理论
统计理论
摘要
本文研究了扰动矩阵如何改变其非负秩。我们证明了非负秩是上半连续的,并描述了一些特殊的扰动族。我们展示了我们的结果如何与统计学中混合模型的最大似然估计研究相关联。
引用
@article{arxiv.1010.3566,
title = {Perturbation of matrices and non-negative rank with a view toward statistical models},
author = {Cristiano Bocci and Enrico Carlini and Fabio Rapallo},
journal= {arXiv preprint arXiv:1010.3566},
year = {2011}
}
备注
13 pages, 3 figures. A theorem has been rewritten, and some improvements in the presentations have been implemented