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- W2607887979 abstract "In this article, we propose an efficient and robust estimation for the semiparametric mixture model that is a mixture of unknown location-shifted symmetric distributions. Our estimation is derived by minimizing the profile Hellinger distance (MPHD) between the model and a nonparametric density estimate. We propose a simple and efficient algorithm to find the proposed MPHD estimation. Monte Carlo simulation study is conducted to examine the finite sample performance of the proposed procedure and to compare it with other existing methods. Based on our empirical studies, the newly proposed procedure works very competitively compared to the existing methods for normal component cases and much better for non-normal component cases. More importantly, the proposed procedure is robust when the data are contaminated with outlying observations. A real data application is also provided to illustrate the proposed estimation procedure." @default.
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- W2607887979 date "2017-04-25" @default.
- W2607887979 modified "2023-09-27" @default.
- W2607887979 title "Computation of an efficient and robust estimator in a semiparametric mixture model" @default.
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- W2607887979 doi "https://doi.org/10.1080/00949655.2017.1318136" @default.
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