摘要为检测极端事件的状态变化,基于似然比方法研究了广义Pareto分布(Generalized Pareto Distribution,GPD)变点检测模型.考虑三参数GPD变点的检验问题,提出了最大似然比检验统计量.通过证明参数变换后GPD的对数似然和检验统计量的一系列极限性质,得到了检验统计量的渐近分布.通过模拟研究,对该方法的有限样本性质进行了评价,实例分析也验证了该方法的可行性. | | 服务 | | | 加入引用管理器 | | E-mail Alert | | RSS | 收稿日期: 2019-01-06 | | 基金资助:国家自然科学基金(11661018),贵州省科技计划项目(黔科合平台人才[2017]5788号),贵州省数据驱动建模学习与优化创新团队(黔科合平台人才[2020]5016号),全国统计科学研究(2014LZ46),贵州省自然科学基金(黔科合J字[2014]2058号)资助项目. |
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