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Nonparametric inference with generalized likelihood ratio tests

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Abstract

The advance of technology facilitates the collection of statistical data. Flexible and refined statistical models are widely sought in a large array of statistical problems. The question arises frequently whether or not a family of parametric or nonparametric models fit adequately the given data. In this paper we give a selective overview on nonparametric inferences using generalized likelihood ratio (GLR) statistics. We introduce generalized likelihood ratio statistics to test various null hypotheses against nonparametric alternatives. The trade-off between the flexibility of alternative models and the power of the statistical tests is emphasized. Well-established Wilks’ phenomena are discussed for a variety of semi- and non-parametric models, which sheds light on other research using GLR tests. A number of open topics worthy of further study are given in a discussion section.

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Correspondence to Jianqing Fan.

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This invited paper is discussed in the comments available at: http://dx.doi.org/10.1007/s11749-007-0081-7, http://dx.doi.org/10.1007/s11749-007-0082-6, http://dx.doi.org/10.1007/s11749-007-0083-5, http://dx.doi.org/10.1007/s11749-007-0084-4, http://dx.doi.org/10.1007/s11749-007-0085-3, http://dx.doi.org/10.1007/s11749-007-0086-2, http://dx.doi.org/10.1007/s11749-007-0087-1, http://dx.doi.org/10.1007/s11749-007-0088-0, http://dx.doi.org/10.1007/s11749-007-0089-z.

The work was supported by the NSF grants DMS-0354223, DMS-0532370 and DMS-0704337.

The paper was initiated when Jiancheng Jiang was a research fellow at Princeton University.

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Fan, J., Jiang, J. Nonparametric inference with generalized likelihood ratio tests. TEST 16, 409–444 (2007). https://doi.org/10.1007/s11749-007-0080-8

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