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Penalized regression methods for simultaneous variable selection and coefficient estimation, especially those based on the lasso of Tibshirani (1996), have received a great deal of attention in recent years, mostly through frequentist models. Properties such as consistency have been studied, and are achieved by different lasso variations. Here we look at a… (More)

- BY RAHUL MUKERJEE, MALAY GHOSH
- 2005

The paper considers priors obtained by ensuring approximate frequentist validity of (a) posterior quantiles, and of (b) the posterior distribution function. It is seen that, at the second order of approximation, the two approaches do not necessarily lead to identical conclusions. Examples are given to illustrate this. The role of invariance in the context… (More)

- SANKAR DATTA, MALAY GHOSH
- 1996

Jeffreys’ prior, one of the widely used noninformative priors, remains invariant under reparameterization, but does not perform satisfactorily in the presence of nuisance parameters. To overcome this deficiency, recently various noninformative priors have been proposed in the literature. Ž . This article explores the invariance or lack thereof of some of… (More)

- Sounak Chakraborty, Malay Ghosh, Bani K. Mallick
- J. Multivariate Analysis
- 2012

Statistical modelling and inference problems with sample sizes substantially smaller than the number of available covariates are challenging. This is known as large p small n problems. We develop nonlinear regression models in this setup for accurate prediction. In this paper, we introduce a full Bayesian support vector regression model with Vapnik’s… (More)

- T Balasaravanan, P Chezhian, +4 authors K Gurumurthi
- Tree physiology
- 2005

Eucalyptus is the most economically important hardwood plantation tree cultivated in tropical and subtropical countries. Inter-simple sequence repeat (ISSR) markers were used to evaluate genetic relationships within and between individuals of six Eucalyptus species. A total of 583 loci (265 to 1535 bp) were amplified from 149 individuals belonging to the… (More)

- Robert M Dorazio, Bhramar Mukherjee, Li Zhang, Malay Ghosh, Howard L Jelks, Frank Jordan
- Biometrics
- 2008

In surveys of natural populations of animals, a sampling protocol is often spatially replicated to collect a representative sample of the population. In these surveys, differences in abundance of animals among sample locations may induce spatial heterogeneity in the counts associated with a particular sampling protocol. For some species, the sources of… (More)

Generalized linear models (GLMs) have been used quite effectively in the modeling of a mean response under nonstandard conditions, where discrete as well as continuous data distributions can be accommodated. The choice of design for a GLM is a very important task in the development and building of an adequate model. However, one major problem that handicaps… (More)

- Author Malay Ghosh, Kannan Natarajan, +4 authors Bradley P. CARLIN
- 2010

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. American… (More)

- Dhiman Bhadra, Michael J Daniels, Sungduk Kim, Malay Ghosh, Bhramar Mukherjee
- Biometrics
- 2012

In a typical case-control study, exposure information is collected at a single time point for the cases and controls. However, case-control studies are often embedded in existing cohort studies containing a wealth of longitudinal exposure history about the participants. Recent medical studies have indicated that incorporating past exposure history, or a… (More)

- Malay GHOSH, Yeong-Hwa KIM
- 2001

The Behrens-Fisher problem concerns the inference for the difference between the means of two normal populations whose ratio of variances is unknown. In this situation, Fisher’s fiducial interval differs markedly from the Neyman-Pearson confidence interval. A prior proposed by Jeffreys leads to a credible interval that is equivalent to Fisher’s solution,… (More)