1 citations · 1 across the 3 of their papers we have counts for
3 papers
q-fin.ST2025★ 1 cited
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…
stat.ME2025
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…
stat.AP2025
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…