Goodness-of-fit tests for noisy directional data
- 👤 Speaker: Thanh Mai Pham Ngoc, Université Paris Sud, Orsay
- 📅 Date & Time: Friday 17 February 2012, 14:30 - 15:30
- 📍 Venue: MR12, CMS, Wilberforce Road, Cambridge, CB3 0WB
Abstract
The spherical convolution model provides a setup where each genuine observation Xi belonging to S2 the unit sphere of R3, is contaminated by a small random rotation. The aim of the present work is to provide nonparametric adaptive minimax goodness-of-fit testing procedures on f, the density of Xi from noisy observations. More precisely, let f0 being the uniform density on S2, we consider the problem of testing the the null hypothesis f = f0 with alternatives expressed in L2 norm over Sobolev class.
Series This talk is part of the Statistics series.
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Friday 17 February 2012, 14:30-15:30