4 papers
From Cumulative Weights to Marginal Density Ratios: Per-Protocol Estimation in Sequential Target Trial Emulation
Zern Ke, Mingshi Cui, Feng Dai +3
Sequential target trial emulation evaluates eligibility at multiple baseline times to emulate a sequence of randomized trials using observational data. Estimating per-protocol effe…
A Novel Two-stage Deming Regression Framework with Applications to Association Analysis between Clinical Risks
Yajie Duan, Javier Cabrera, Davit Sargsyan
In healthcare, clinical risks are crucial for treatment decisions, yet the analysis of their associations is often overlooked. This gap is particularly significant when balancing r…
Data Nuggets: A Method for Reducing Big Data While Preserving Data Structure
Traymon E. Beavers, Ge Cheng, Yajie Duan +4
Big data, with NxP dimension where N is extremely large, has created new challenges for data analysis, particularly in the realm of creating meaningful clusters of data. Clustering…
A New Projection Pursuit Index for Big Data
Yajie Duan, Javier Cabrera, Birol Emir
Visualization of extremely large datasets in static or dynamic form is a huge challenge because most traditional methods cannot deal with big data problems. A new visualization met…