Maximum likelihood estimation of a unimodal probability mass function
Maximum likelihood estimation of a unimodal probability mass function
复制标题
单峰概率质量函数的最大似然估计
DOI:
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复制
发表时间:
2016
期刊:
影响因子:
--
通讯作者:
H. Jankowski
中科院分区:
文献类型:
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作者:
F. Balabdaoui;H. Jankowski
We develop an estimation procedure of a discrete probability mass function (pmf) with unknown support. We derive the maximum likelihood estimator of this pmf under the mild and natural shape-constraint of unimodality. Shape-constrained estimation is a powerful and robust technique, which additionally provides smoothing of the empirical distribution yielding thereby gains in eciency. We show that our unimodal estimator is consistent when the model is specied, and that it converges to the best projection of the true pmf on the unimodal class under model misspecication. Furthermore, we derive the limiting distribution of the the estimator, and use the obtained result to build asymptotic condence bands for the unknown pmf when the latter is unimodal. We illustrate our approach using time-to-onset data of the Ebola virus during the 1976 outbreak in the former republic of Zaire.
DOI:
10.3934/mbe.2013.10.1455
发表时间:
2013-10
期刊:
Mathematical biosciences and engineering : MBE
影响因子:
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作者:
Chowell G;Fuentes R;Olea A;Aguilera X;Nesse H;Hyman JM
通讯作者:
Hyman JM
影响因子:
1.1
作者:
Jankowski,HannaK;Wellner,JonA
通讯作者:
Wellner,JonA