•  Variability Estimation in PET and Related Generalized Deconvolution Models (joint with Finbarr O'Sullivan, Jour. Amer. Stat. Assoc., 1998)
•  On Best Equivariance and Admissibility Of Simultaneous MLE For Mean Direction Vectors Of Several Langevin Distributions. (joint with A. SenGupta, Ann. Inst. Stat. Math., 1998)
• An Approximate Bootstrap Technique for Variance Estimation in Parametric Images (Med. Imag. Anal., 1998) 
• Clustering Massive Datasets (Unpublished manuscript, 1998) (This was adjudged the best contributed paper in Statistical Computing at JSM 98)
• Bayesian Reconstruction in Synthetic Magnetic Resonance Imaging. (joint with Julian Besag, Bayesian Inference for Inverse Problems, Proceedings of SPIE 1998, Vol. 3459: A Mohammad-Djafari [Ed.])
•  Pay-phones, Parking-meters, Vending Machines and Bayesian Optimal Decisions on Collection Times (joint with Siddharta R. Dalal, Jour. Amer. Stat. Assoc., 2001)
•  Estimating Precision in Functional Images (Jour. Comp. Graph. Stat.,  1997) (This paper was one of four winners of the Student Paper competition of the ASA Statistical Computing Section at JSM 96)
•  Synthetic Resampling Methods for Variance Estimation in Parametric Images (Springer-Verlag Lecture Notes in Computer Sciences, Information Processing in Medical Imaging, J. Duncan and G. Gindi [Eds.], 1997) (This paper was nominated for the Francois Erbsman Young Scientist Award at IPMI 97)
•   Clustering Massive Datasets With Applications in Software Metrics and Tomography (Technometrics, 2001)
•   Fast Simulation of Markov Cluster Processes (joint with Rafaela Guidi, 1999)
•   Dynamic Visualization of List-Mode Acquired PET Data (Unpublished manuscript, 1999)
•   Comment on "A Bayesian Time-course Model in functional Magnetic Resonance Imaging" by Chris Genovese (joint with Rao Gullapalli, Jour. Amer. Stat. Assoc., 2000).
•   Test-Retest Reliability Estimation of fMRI Data (joint with Steven Roys and Rao Gullapalli, Mag. Res. Med., 2002).
•   A Statistical Perspective on Data Mining (J. Ind. Soc. Prob. Statist., Invited Survey Papers Issue, 2002).
•   Group Analysis of functional Magnetic Resonance Data Using Penalized Maximum Likelihood (joint with Rao Gullapalli, Steven Roys, Joel Greenspan, Gerald Smith, Gad Alon, s Mag. Res. Med., 2002).
•   Sex Differences in the Cerebral BOLD Signal Response to Painful Heat Stimuli (joint with Eric Moulton, Michael Keaser, Rao Gullapalli and Joel Greenspan, Am. J Psychology, 2006).
•   Multivariate Gaussian Simulation Outside Arbitrary Gaussian Ellipsoids (joint with Nick Ellis, Journal of Computational and Graphical Statistics, 2007).
•   Initializing Partition-Optimization Algorithms (IEEE/ACM Transactions on Computational Biology and Bioinformatics, 2009).
•   Clustering in the Presence of Scatter" (joint with Ivan Ramler, , Biometrics, 2009). Web supplement.
•   Assessing Certainty of Activation or Inactivation in Test-Retest fMRI Studies ( Neuroimage, 2009).
•   Noise Estimation in Magnitude MR Datasets(joint with David Faden, to appear in IEEE Transactions on Medical Imaging, 2009).
•   A k-means Direction Algorithm for Fast Clustering of Data on the Sphere" (joint with Ivan Ramler, Journal of Computational and Graphical Statistics, accepted, 2009) Web supplement.
•   Simulating Data to Study Performance of Finite Mixture Modeling and Clustering Algorithms" (joint with Volodymyr Melnykov, Journal of Computational and Graphical Statistics, accepted, 2009) Web supplement.