JSM 2015 Preliminary Program

Online Program Home
My Program

Abstract Details

Activity Number: 38
Type: Contributed
Date/Time: Sunday, August 9, 2015 : 2:00 PM to 3:50 PM
Sponsor: Biometrics Section
Abstract #315891 View Presentation
Title: A Discriminant Function for Renal Inflammatory Activity Associated with Lupus Nephritis
Author(s): Alice Hinton* and H.N. Nagaraja and Brad Rovin
Companies: The Ohio State University and The Ohio State University and The Ohio State University Medical Center
Keywords: Discriminant Analysis ; Longitudinal Data ; Multivariate Normal Distribution
Abstract:

The concepts of discriminant analysis are used to develop a classifier for a multivariate longitudinal dataset in which a change in both mean and variance occurs at an unknown time. Conditional distributions involving a patterned covariance matrix accounting for the correlations between the variables as well as the correlations across time are then utilized to develop a discriminant function. After a training dataset is used to provide estimates for each of the parameters needed to specify the discriminant function, the classifier can then be sequentially applied as observations are accumulated to identify the time at which the change occurs. The proposed method is applied to a dataset composed of patients with lupus nephritis who experience repeated renal inflammatory activity.


Authors who are presenting talks have a * after their name.

Back to the full JSM 2015 program





For program information, contact the JSM Registration Department or phone (888) 231-3473.

For Professional Development information, contact the Education Department.

The views expressed here are those of the individual authors and not necessarily those of the JSM sponsors, their officers, or their staff.

2015 JSM Online Program Home