Dipak K. Dey

Ph.D. in Statistics, Purdue University, (1980)

M. Stat. (Advanced Probability and Mathematical Statistics), Indian Statistical Institute, (1975)

B. Stat. (Honors) in Statistics, Indian Statistical Institute, (1974)

Higher Secondary, Ballygunge Government High School, (1970)

Research Interests

Bayesian modeling , Computational Statistics, Decision Theory, Multivariate analysis, Reliability and Survival analysis, Statistical Shape analysis, Statistical Genetics, and Modeling Extreme Events.

Selected Publications

  • Model determination using predictive distributions with implementation via sampling based methods,(with A.E. Gelfand and H.Chang) (1992) Bayesian Statistics 4.(Bernardo et al. ed), 147-167.
  • Frequentist validity of posterior quantiles in the presence of a nuisance parameter: higher order asymptotics, (with R.Mukerjee). (1993) Biometrika, 80, 3, 499-505.
  • Bayesian robustness for multiparameter problems, (with M.Delampady). (1994) Journal of Statistical Planning and Inference 40, 375-382.
  • Bayesian model choice: asymptotics and exact calculations,(with A.E.Gelfand). (1994) Journal of Royal Statistical Society, series B, 56, 501-514.
  • Modeling expert opinion arising as partial probabilistic specification, (with A.E. Gelfand and B.K. Mallick). (1995) Journal of the American Statistical Association, 90, 598-604.
  • Bayesian analysis of outlier problems using divergence measures. (1995) Canadian Journal of Statistics, 23, 2, 194-213, (with F. Peng).
  • Bayesian approach in model selection for the binary response data, (H, chang and S. Ray), (1996) Advances in Econometrics, 11, A, 145-175.
  • Estimation of Langmuir constants using linear and nonlinear least squares regression analyses, (with C. P. Schulthess), (1996) Soil Science Society of America Journal, 60, 2, 433-442 .
  • On local sensitivity measures in Bayesian analysis (with discussion), (with S. K. Ghosh and K. Lou),(1996). Lecture Notes - IMS Monograph Series, 29, 21-39.
  • Weighted distributions viewed in the context of model selection: a Bayesian perspective, (with D. T. Larose), (1996) Test, 5, 227-246 .
  • Grouped random effects models for Bayesian meta-analysis, (with D. T. Larose), (1997). Statistics in Medicines, 16, 1817-1829.
  • Semiparametric Bayesian analysis of survival data, (with D. Sinha), (1997). Journal of the American Statistical Association, 92, 1195-1212.
  • A Weibull regression model with gamma frailties for multivariate survival data, (with S. K. Sahu, H. Aslanidou and D. Sinha), (1997). Life Time Data Analysis , 3, 1-15.
  • Bayesian approach for the nonlinear random effects models, (with M.-H. Chen and H. Chang), (1997). Biometrics , 53, 15-28.
  • Modeling toxicological multivariate mortality data: a Bayesian perspective, (with D. Sinha and H. Chu), (1997). Proceedings of the conference on "Modelling Longitudinal and Spatially Correlated Data: Methods, Applications and Future Directions", 123-134 .
  • A Bayesian approach to loss robustness, (with K. Lou and S. Bose), (1998). Statistics & Decisions 16, 65-87.
  • Bayesian analysis of multivariate survival data using Monte Carlo methods, (with H. Aslanidou and D. Sinha), (1998). Canadian Journal of Statistics, 26,33-48.
  • Modeling publication bias using weighted distribution in a Bayesian framework, (with D. Larose), (1998). Computational Statistics and Data Analysis, 26, 279-302.
  • Box-Cox transformation in Baysian analysis of compositional data, with M. Iyenger, (1998). Environmetrics, 9, 657-671.
  • Baysian modeling of correlated binary responses via scale mixture of multivariate normal link functions, (with M-H. Chen), (1998). Sankhya, Series A,60, 322-343.
  • A simulation-intensive approach for checking hierarchical models, (with A. Gelfand, T. Swartz and P. Vlachos), (1998). Test, 7, 325-346.
  • Multivariate survival analysis with positive stable frailties, (with N. Ravishanker and Z. Qiou), (1999). Biometrics, 55, 81-88.
  • A new class of minimax estimators of multivariate normal mean vectors under balanced loss function, (with Y. Chung and C. Kim), (1999). Statistics and Decisions, 17, 255-266.
  • A multivariate mixture of Weibull distribution in reliability modeling, (with K. Patra), (1999). Statistics and Probability Letters, 45, 225-235.
  • On estimation with balanced loss functions, (with M. Ghosh and W. Strawderman), (1999), Statistics and Probability Letters, 45, 97-101.
  • A new skewed link model for dichotomous quantal response data, (with M.-H. Chen, and Q.-M. Shao), (1999). Journal of the American Statistical Association, 94, 1172-1186.
  • Bayesian analysis of multivariate mortality data with large families, (with M.-H. Chen and D. Sinha), (2000). Applied Statistics, 49, 129-144.
  • Comparison of frailty and other models for bivariate survival data, (with S. Sahu), (2000). Life Time Data Analysis, 6, 207-228.
  • Modeling multivariate survival data with a mixture of positive stable frailties, (with N. Ravishanker), (2000). Methodology and Computing in Applied Probability, 2, 293-308.
  • A general class of multivariate skew-elliptical distributions, (with M. Branco), (2001). Journal of Multivariate Analysis, 79, 99-113.
  • Model determination for the variance components model using reference priors, (with Y.Chung), (2002). Journal of Statistical Planning and Inference, 100, 49-65.
  • Variable selection for multivariate logistic regression models,(with M-H. Chen),(2002).Journal of Statistical Planning and Inference.
  • A general class of change point and change curve modeling for life time data,(with K.Patra),(2002). Annals of the Institute of Statistical Mathematics.
  • A Bayesian approach to inferring population structure from dominant markers. Molecular Ecology (2002), 11, 1157-1164 (with K. Holsinger and P.Lewis).
  • Prior and posterior predictive p-values in the one sided location parameter testing problem. Sankhya, Series A (2002) (with A.Micheas).
  • Variable selection for multivariate logistic regression models. Journal of Statistical Planning and Inference, 111, 37-55 (2003) (with A. Micheas)..
  • A new Bayesian approach for accelerated life test data. Applied Statistics, 52, 249-259 (with D. Sinha and K. Patra).
  • A new class of multivariate skew distributions with applications to Bayesian regression models. The Canadian Journal of Statistics, 31, 129-150 (2003) (with S.K. Sahu and M.D. Branco).
  • Wavelet modeling of priors on triangles. Journal od Multivariate Analysis, 89, 338-358 (2004) (with Y. Wang).
  • Complex elliptical distributions with applications to shape analysis.Journal of Statistical Planning and Inference, 136, 2961-2982, (2006). (with A. Micheas and K.V. Mardia).
  • Differentiation among populations with migration, mutation, and drift: implications for genetic inference.Evolution,60, 1-12 (2006) (with S. Song and K. Holsinger).
  • On Bayesian analysis of generalized linear models using Jacobian techniques.The American Statistician, 60, 3, 264-268 (2006) (with S. Das).
  • Statistical approach to metabonomic analysis of rat urine following surgical trauma. Journal of Chemometrics,20, 87-98 (2006) (with S. Ghosh, D. Grant, D. Hill, B. Luo, N. Petty, R. Melchert).
  • A quantitative study of quantile based direct prior elicitation from expert opinion. Bayesian Analysis,2, 137-166(2007) (with J. Liu).
  • Modeling spatially correlated survival data for individuals with multiple cancers.Statistical Modelling,7,191-213. (2007). (with U.Diva and S. Banerjee).
  • Bayesian analysis of generalized odds-rate hazards models for survival data.Life Time Data Analysis,13, 241-261. (2007). (with T. Banerjee , M.-H. Chen and S. Kim).
  • Bayesian dynamic models for survival data with a cure fraction.Life TimeData Analysis,13, 17-35. (2007). (with S. Kim, M-H. Chen, D. Gamerman)