Photograph of Surajit Ray

Surajit Ray

University Gardens
University of Glasgow GLASGOW G12 8QQ

Phone:   0141 330 6238
Fax:       0141 330 4814
E-mail: Surajit.Ray at
Research Interests: My research interests are in the area of model selection, the theory and geometry of mixture models and functional data analysis. I am especially interested in challenges presented by "large magnitude", both in the dimension of data vectors and in the number of vector. Core areas of methodological research include multivariate mixtures, structural equations models, high-dimensional clustering and functional clustering. Key collaborative activities involve projects in immunology, modeling of climate ecosystem dynamics and medical image segmentation.

Postgraduate Opportunities
Recently Published and Working Papers
Spatial models with covariates improve estimates of peat depth in blanket peatlands with Young, D. M., Parry, L. E. , Lee, D.
PLoS ONE, (2018)
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Functional principal component analysis of spatially correlated data with Liu, C., and Hooker, G.
Statistics and Computing, (2017)
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Parallel and hierarchical mode association clustering with an R package Modalclust with Y.Cheng.
Vol 4(10), pp. 826-836. Open Journal of Statistics (2014)
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Multivariate modality inference using Gaussian kernel. with Y.Cheng.
Vol 4(5), pp. 419-434. Open Journal of Statistics (2014)
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Kernels, degrees of freedom, and power properties of quadratic goodness of fit tests. with B.G. Lindsay and M. Markatou.
Vol 109, No 505, Journal of American Statistical Association (2014)
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BIC and Alternative Bayesian Information Criteria in the Selection of Structural Equation Models with K. Bollen, J. Zavisca and Jeffrey J. Harden.
31 Jan 2014, Structural Equation Modeling: A Multidisciplinary Journal (2014)
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Statistical monitoring of clinical trials with multiple co-primary endpoints using multivariate B-value with Yansong Cheng, Mark Chang and Sandeep Menon
To appear in Statistics in Biopharmaceutical Research (2014)
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On the Number of Modes of Finite Mixtures of Elliptical Distributions with Grigory Alexandrovich and Hajo Holzmann
49-57 Conference Proceedings: Algorithms from and for Nature and Life 2013 (2013)
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Functional Factor Analysis For Periodic Remote Sensing Data with Chong Liu, Giles Hooker, and Mark Friedl.
Annals of Applied Statistics 2012, Vol 6, No 2
PDF | Supplement
A Comparison of Bayes Factor Approximation Methods Including Two New Methods with K. Bollen, J. Zavisca and Jeffrey J. Harden.
vol. 41 no. 2 294-324, Sociological Methods & Research (2012)
Preprint | Journal Page
On the upper bound of the number of modes of a multivariate normal mixture with Dan Ren
Volume 108, Pages 41–52, Journal of Multivariate Analysis (2012)
Preprint | Journal Page

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