Department seminar by Dan ChengExport this event to calendar

Wednesday, November 17, 2021 — 12:00 PM EST

Please Note: This seminar will be given online.

Probability seminar series

Dan Cheng
Arizona State University

Link to join seminar: Hosted on Zoom

Peak height distributions of Gaussian random fields and their applications in statistics

Peak height distributions of Gaussian random fields and their applications in statistics Seminar Abstract: Motivated by computing p-values for multiple testing of local maxima in signal and change point detections, we study the height distribution of local maxima of smooth isotropic Gaussian random fields parameterized on Euclidean space or spheres. The obtained formulae hold in general in the sense that there are no restrictions on the covariance function of the field except for smoothness and isotropy. The results are based on a characterization of the distribution of the Hessian of the Gaussian field by means of the family of Gaussian orthogonally invariant (GOI) matrices, of which the Gaussian orthogonal ensemble (GOE) is a special case.

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