1 citations · 1 across the 5 of their papers we have counts for
6 papers
Derivations for the Cumulative Standardized Binomial EWMA (CSB-EWMA) Control Chart
Faruk Muritala, Austin Brown, Dhrubajyoti Ghosh +1
This paper presents the exact mathematical derivation of the mean and variance properties for the Exponentially Weighted Moving Average (EWMA) statistic applied to binomial proport…
Demographic Distribution Matching between real world and virtual phantom population
Dhrubajyoti Ghosh, Fakrul Islam Tushar, Lavsen Dahal +5
Virtual imaging trials (VITs) offer scalable and cost-effective tools for evaluating imaging systems and protocols. However, their translational impact depends on rigorous comparab…
Polyspectral Mean based Time Series Clustering of Indian Stock Market
Dhrubajyoti Ghosh
In this study, we employ k-means clustering algorithm of polyspectral means to analyze 49 stocks in the Indian stock market. We have used spectral and bispectral information obtain…
A novel smoothing-based goodness-of-fit test of covariance for multivariate sparse functional data
Dhrubajyoti Ghosh, Zhuolin Song, Luo Xiao +1
Accurately specifying covariance structures is critical for valid inference in longitudinal and functional data analysis, particularly when data are sparsely observed. In this stud…
Ensemble Survival Analysis for Preclinical Cognitive Decline Prediction in Alzheimer's Disease Using Longitudinal Biomarkers
Dhrubajyoti Ghosh, Samhita Pal, Michael Lutz +1
Predicting the risk of clinical progression from cognitively normal (CN) status to mild cognitive impairment (MCI) or Alzheimer's disease (AD) is critical for early intervention in…
Power and sample size calculation for multivariate longitudinal trials using the longitudinal rank sum test
Dhrubajyoti Ghosh, Xiaoming Xu, Sheng Luo
Neurodegenerative diseases such as Alzheimer's and Parkinson's often exhibit complex, multivariate longitudinal outcomes that require advanced statistical methods to comprehensivel…