William Dillon

XMM-Newton and Optical Observations of Cataclysmic Variables from SDSS (2009)

Hilton, Eric J., Szkody, Paula, Mukadam, Anjum, Henden, Arne, Dillon, William, Schmidt, Gary D.

We report on XMM-Newton and optical results for 6 cataclysmic variables that were selected from Sloan Digital Sky Survey spectra because they showed strong HeII emission lines, indicative of being...

An Extension of Multiple Correspondence Analysis for Identifying Heterogeneous Subgroups of Respondents

Heungsun Hwang, Hec Montréal, William Dillon, Yoshio Takane

multiple correspondence analysis, k-means, cluster-level respondent heterogeneity, alternating least squares,

Modeling within-subject dependencies in ordinal paired comparison data

Ulf Böckenholt, William Dillon

repeated measurements, rankings, intransitivities, Thurstonian models,