The Annals of Statistics
- Ann. Statist.
- Volume 44, Number 2 (2016), 876-905.
Bayesian manifold regression
Abstract
There is increasing interest in the problem of nonparametric regression with high-dimensional predictors. When the number of predictors $D$ is large, one encounters a daunting problem in attempting to estimate a $D$-dimensional surface based on limited data. Fortunately, in many applications, the support of the data is concentrated on a $d$-dimensional subspace with $d\ll D$. Manifold learning attempts to estimate this subspace. Our focus is on developing computationally tractable and theoretically supported Bayesian nonparametric regression methods in this context. When the subspace corresponds to a locally-Euclidean compact Riemannian manifold, we show that a Gaussian process regression approach can be applied that leads to the minimax optimal adaptive rate in estimating the regression function under some conditions. The proposed model bypasses the need to estimate the manifold, and can be implemented using standard algorithms for posterior computation in Gaussian processes. Finite sample performance is illustrated in a data analysis example.
Article information
Source
Ann. Statist., Volume 44, Number 2 (2016), 876-905.
Dates
Received: December 2014
Revised: September 2015
First available in Project Euclid: 17 March 2016
Permanent link to this document
https://projecteuclid.org/euclid.aos/1458245738
Digital Object Identifier
doi:10.1214/15-AOS1390
Mathematical Reviews number (MathSciNet)
MR3476620
Zentralblatt MATH identifier
1341.62196
Subjects
Primary: 62H30: Classification and discrimination; cluster analysis [See also 68T10, 91C20] 62-07: Data analysis
Secondary: 65U05 68T05: Learning and adaptive systems [See also 68Q32, 91E40]
Keywords
Asymptotics contraction rates dimensionality reduction Gaussian process manifold learning nonparametric Bayes subspace learning
Citation
Yang, Yun; Dunson, David B. Bayesian manifold regression. Ann. Statist. 44 (2016), no. 2, 876--905. doi:10.1214/15-AOS1390. https://projecteuclid.org/euclid.aos/1458245738
Supplemental materials
- Reviews of geometric properties and proofs of Theorems 2.1, 2.2, 2.4 and 3.2. Concepts and results in differential and Riemannian geometry were reviewed in Section 7, where new results are included with proofs. Then proofs of Theorems 2.1, 2.2, 2.4 and 3.2 are provided in Section 8.Digital Object Identifier: doi:10.1214/15-AOS1390SUPP