Browsing Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics by Author "Ingster, Y. I."
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Article
Minimax goodness-of-fit testing in multivariate nonparametric regression
Ingster, Y. I.; Sapatinas, Theofanis (2009)We consider an unknown response function f defined on Δ = [0, 1] d, 1 ≤ d ≤ ∞, taken at n random uniform design points and observed with Gaussian noise of known variance. Given a positive sequence r n → 0 as n → ∞ and a ...
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Article
Minimax nonparametric testing in a problem related to the radon transform
Ingster, Y. I.; Sapatinas, Theofanis; Suslina, I. A. (2011)We consider the detection problem of a two-dimensional function from noisy observations of its integrals over lines. We study both rate and sharp asymptotics for the error probabilities in the minimax setup. By construction, ...
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Article
Minimax signal detection in ill-posed inverse problems
Ingster, Y. I.; Sapatinas, Theofanis; Suslina, I. A. (2012)Saint Petersburg Electrotechnical University, University of Cyprus and Saint Petersburg University of Information Technologies, Mechanics and Optics Ill-posed inverse problems arise in various scientific fields. We consider ...