SURAJIT RAY

3125 McGavran-Greenberg CB #7420,		Email	:	sray@unc.edu
Department of Biostatistics,		Off	:	919-843-0826
University of North Carolina at Chapel Hill		Fax	:	919-966-3804
Chapel Hill, NC 27599-7420		Res	:	919-969-9261

Education

Aug 2003	Ph.D. Dept of Statistics, Pennsylvania State University
	$-$ GPA 4.0
	Dissertation: ``Distance-based Model-Selection with application to Analysis of Gene Expression Data''
	Advisor: Bruce G. Lindsay.
1999	M. Stat., Indian Statistical Institute, Calcutta, India.
	$-$ First Division with distinction;
	$-$ Specialization: Applied Statistics and Data Analysis.
1997	B. Sc. (Honors) in Statistics, Presidency College, Calcutta
	$-$ First Division with distinction;
	$-$ Minors: Mathematics, Economics

Research Interests

• Theory and applications of finite mixture models, and detection of modes in high dimensional data.
• Distance-based model selection.
• Bioinformatics; Model-based clustering and assessment of differential expression in Gene Expression Microarray Data.

Honors and Awards

2003	``Most Outstanding Student Presentation'' in Theoretical Statistics at the International Conference on Statistics, Combinatorics and Related Areas. (See Presentations below)
2002	Graduate student travel awards. (See "Presentations" below.)
2002	Davey Graduate fellowship award from the Eberly College of Science, PennState.
2002	August and Ruth Homeyer Graduate fellowship award from the Eberly College of Science, PennState.
2000	Vollmer-Kleckner Scholarship award in Science from the Eberly College of Science, PennState, for the most outstanding performance in PhD Qualifiers.

Professional Experience

Sep 2003-	Visiting Assistant Professor, Dept. of Biostatistics, University of North Carolina at Chapel Hill.
2000-2003	Research Assistant, Dept. of Statistics, Pennsylvania State University
2001-2003	Computer Support Group, Dept. of Statistics, Pennsylvania State University.
2001-2002	Instructor, Dept. of Statistics, Pennsylvania State University
2000-2001	Statistical Consultant, Consulting Center, Dept. of Statistics, Pennsylvania State University

Teaching Experience

Spring 2003	Instructor BIOS 145 (Principles of Experimental Analysis),Dept. of Biostatistics, University of North Carolina at Chapel Hill.
Fall 2001	Instructor STAT 401 (Experimental Methods), Dept. of Statistics, Pennsylvania State University.
1999-2000	Teaching Assistant STAT 200 (Introduction to Statistics), Dept. of Statistics, Pennsylvania State University.

Publications

• Basu, A., Ray, S., Park, C., Basu, S. (2002) Improved Power in Multinomial Goodness-of-fit Tests, Journal of the Royal Statistical Society Series D, September 2002, 51, 3, 381-393.

• Chen, S., Lindsay, B., Markatou M., Ray, S., Yang, K., Asymptotic properties of Generalized Quadratic Distance. [in preparation]

• Ray, S., Lindsay, B., The Topography of Multivariate Normal Mixtures. [Technical Report]

Technical Skills

• Statistics: Mixture Models, Distance-based Model Selection, Asymptotics of Generalized Quadratic Distance, Bioinformatics.
• Programming Languages: C/C++, Perl, Java, PASCAL, BASIC, SQL.
• Computing Platforms: Unix (Linux, Sun Solaris) , DOS/Windows, Mac OS-X.
• Statistical Software: Extensive experience with R/SPlus; SAS, Minitab, SPSS.

Invited Presentations

Distance-based Model-selection in Mixture Distributions, International Conference on:Statistics in Health Sciences , Nantes, France $\bullet$ June 2004.

Distance-based Model-selection for High Dimensional data, International Conference on Statistics, Combinatorics and Related Areas, University of Southern Maine $\bullet$ October 2003.

Distance-based Model-selection with application to Analysis of Gene Expression Data

• Stat Math Division Colloquium series, Indian Statistical Institute, Calcutta, $\bullet$ July 2003.
  
• Department of Biostatistics, University of North Carolina,Chapel Hill $\bullet$ March 2003.
  
• Department of Statistics, University of Florida, $\bullet$ March 2003.
  
• RAND , Santa Monica, $\bullet$ February 2003.
  
  

Professional Memberships

2001-present:	American Statistical Association (ASA)
2001-present:	Institute of Mathematical Statistics (IMS)

References

Prof. Bruce G. Lindsay	Prof. Francesca Chiaromonte
Dept of Statistics, Penn State University	Dept of Statistics, Penn State University
University Park, PA 16801	University Park, PA 16801
814.865.1220	814.865.7075
bgl@stat.psu.edu	chiaro@stat.psu.edu
Prof. C. R. Rao	Prof. James L. Rosenberger
Dept of Statistics, Penn State University	Dept of Statistics, Penn State University
University Park, PA 16801	University Park, PA 16801
814.865.3194	814.865.1348
crr1@psu.edu	jlr@stat.psu.edu