Bayesian wavelet shrinkage
β Scribed by Gabriel Huerta
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2010
- Tongue
- English
- Weight
- 131 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0163-1829
- DOI
- 10.1002/wics.127
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Bayesian waveletβshrinkage methods are defined through a prior distribution on the space of wavelet coefficients after a Discrete Wavelet Transformation (DWT) has been applied to the data. Posterior summaries of the wavelet coefficients establish a Bayes shrinkage rule. After the Bayes shrinkage is performed, an Inverse DWT can be used to recover the signal that generated the observations. This article reviews some of the main approaches for Bayesian wavelet shrinkage that span both smooth and multivariate types of shrinkage. WIREs Comp Stat 2010 2 668β672 DOI: 10.1002/wics.127
This article is categorized under:
Statistical and Graphical Methods of Data Analysis > Bayesian Methods and Theory
Statistical and Graphical Methods of Data Analysis > Markov Chain Monte Carlo (MCMC)
π SIMILAR VOLUMES
The results of Hall et al. (1998, Ann. Statist. 26, 922-943) together with Efromovich (2000, Bernoulli) imply that a data-driven block shrinkage wavelet estimator, which mimics a sharp minimax linear oracle, is rate optimal over spatially inhomogeneous function spaces. This result does not contradic
Wavelet shrinkage estimators are obtained by applying a shrinkage rule on the empirical wavelet coefficients. Such simple estimators are now well explored and widely used in wavelet-based nonparametrics. Results of Tao (1996, Appl. Comput. Harmon. Anal. 3, 384-387) demonstrated that hard and soft th