13 papers
Network-aware IV Regression for Causal Node Discovery and Estimation
Samhita Pal, Dhrubajyoti Ghosh
Estimating causal effects from high-dimensional, structured exposures is a fundamental challenge in modern applications ranging from neuroscience and finance to environmental scien…
A Nonparametric Adaptive EWMA Control Chart for Binary Monitoring of Multiple Stream Processes
Faruk Muritala, Austin Brown, Dhrubajyoti Ghosh +1
Monitoring binomial proportions across multiple independent streams is a critical challenge in Statistical Process Control (SPC), with applications from manufacturing to cybersecur…
Spatiotemporal Characterization of Overdose Mortality in Georgia, USA Using Spectral and Nonlinear Interaction Analysis, 2003-2021
Dhrubajyoti Ghosh
Drug overdose mortality in the United States exhibits strong geographic heterogeneity and complex temporal evolution, yet most spatiotemporal studies focus on trends and risks with…
A Rank-Based Information Fusion Framework for Comparing Clustered Multivariate Socioeconomic Outcomes
Dhrubajyoti Ghosh
We propose a multivariate, distribution-free ranking framework for comparing clustered, correlated outcomes across groups, motivated by the evaluation of state-level policy environ…
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…