Somesh Chattopadhyay Assistant Professor Address: Department of Statistics Florida State University Tallahassee, FL 32306-4330, USA Office: 106B OSB (Oceanography and Statistics Building) Phone: (850) 644-9855 Fax: (850) 644-5271 E-mail: somesh@stat.fsu.edu

Dr. Somesh Chattopadhyay is an assistant professor in the Department of Statistics at Florida State University. He has received his B.Stat. and M.Stat. degrees from Indian Statistical Institute and his Ph.D. degree in statistics from University of Virginia. He spent a year as a visiting assistant professor in the Institute of Statistics and Decision Sciences at Duke University. He has joined Florida State University in Fall, 2002.

Teaching

Classes for Spring 2006

List of classes taught in the recent past

Research

• Biostatistics and epidemiology
• Applied probability
• Multivariate analysis

In biostatistics he is primarily interested in survival analysis, especially in multivariate survival analysis. One important problem in multivariate survival analysis is modeling the relationship between different events and multiple occurrences of the same event. His research involves modeling and analysis of multiple types of events with possible recurrence. His epidemiology research involves epidemiology of cardiovascular diseases.

He is interested in applied probability modeling of biological and physiological systems. He is also interested in developing novel techniques for making statistical inference of the models. His works include modeling of endocrinological systems in human and developing new techniques of analysis using an alternating Metropolis and diffusion scheme.

He has recently become interested in multivariate analysis. Among the topics in multivariate analysis his research includes missing data problems in multivariate analysis and discriminant analysis.

He is also interested in the theoretical aspects of the false discovery rate.

Publications

• Probabilistic recovery of neuroendocrine pulsatile secretory and kinetic structure: An alternating discrete and continuous scheme (with D.M. Keenan and J.D. Veldhuis),
  Quarterly of Applied Mathematics, (2006) (to appear).
• Composite model of time-varying appearance and disappearance of neurohormone pulse signals in blood (with D.M. Keenan and J.D. Veldhuis),
  Journal of Theoretical Biology, 236 (2005), 242--255.
• Body mass index and mortality: a meta-analysis based on person-level data from twenty-six observational studies (with D.L. McGee and Diverse Populations Collaboration),
  Annals of Epidemiology, 15 (2005), 87--97.
• Smoking, body weight, and CHD mortality in diverse populations (with The Diverse Populations Collaboration),
  Preventive Medicine, 38 (2004), 834--840.
• Markov multistate models for cardiovascular diseases
  (submitted).

Talks

Conference Talks

• Statistical Modeling of Hormonal Pulsatile Behavior.
  Presented at the International Conference of Statistics in Honor of Professor C. R. Rao, San Antonio, Texas, March 16 - 19, 2000.
• Estimating Hormonal Pulse-times and Structural Parameters. Presented at the International Biometric Society ENAR/IMS meeting, Charlotte, North Carolina, March 25 - 28, 2001.
• Simultaneous Hormone Pulse Time and Secretion and Elimination Estimation: An Alternating Metropolis and Diffusion Scheme.
  Presented at the Joint Statistical Meetings, New York City, New York, August 11-15, 2002. (Invited)
• Validation and Calibration: An Empirical Study of Prognostic Survival Models.
  Presented at the International Biometric Society ENAR/IMS meeting, Tampa, Florida, March 30 - April 2, 2003.
• Validation and Calibration of Proportional Hazards Models.
  Presented at the Joint Statistical Meetings, San Francisco, California, August 3-7, 2003.
• A Study of Deaths Due to Cardiovascular Diseases through Markovian Multistate Models.
  Presented at the Joint Statistical Meetings, Toronto, Ontario, Canada, August 8-12, 2004.
• Markovian Multistate Regression Models for Cardiovascular Diseases.
  Presented at the Joint Statistical Meetings, Minneapolis, Minnesota, August 7-11, 2005.

Colloquium Talks

• Biostatistics Branch, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina. February 2001.
• Department of Statistics, Ohio State University, Columbus, Ohio. February 2001.
• Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. February 2001.
• Department of Mathematics, Idaho State University, Pocatello, Idaho. March 2001.
• Department of Mathematical Sciences, University of Texas at Dallas, Richardson, Texas. March 2001.
• Department of Mathematics, Washington University in St. Louis, St. Louis, Missouri. March 2001.
• Institute of Statistics and Decision Sciences, Duke University, Durham, North Carolina. October 2001.
• Department of Statistics, Florida State University, Tallahassee, Florida. February 2002.
• Joint Colloquium of Departments of Statistics of Florida State University and University of Florida, Gainesville, Florida. April 2004.
• Department of Statistics, Pennsylvania State University, University Park, Pennsylvania. October 2005.
• Department of Mathematics and Statistics, University of West Florida, Pensacola, Florida, November 2005.

Grants

• Co-PI on "BMI and Mortality in Diverse Population" grant (R01) from NIH, 2002-2005 (PI: Daniel McGee).
• PI on the First Year Assistant Professor summer grant "Statistical Modeling and Analysis of Hormonal Systems" from Florida State University, Summer 2003.

Service