All talks will be held in CAS 109 unless otherwise specified.

Fall 2016 Colloquiums

April 27 (Tue) 2:00-3:00 Dr. David Booth (Kent State Univ.)

On the Discovery and Use of Disease Risk Factors with Logistic Regression: New Prostate Cancer
Risk Factors

Abstract: We begin by arguing that the often used algorithm for the discovery and use of disease risk factors, stepwise logistic regression, is unstable. We then argue that there are other algorithms available that are much more stable and reliable (e.g. the lasso and gradient boosting). We then propose a protocol for the discovery and use of risk factors using lasso or boosting variable selection with logistic regression. We then illustrate the use of the protocol with a set of prostate cancer data and show that it recovers known risk factors. Finally we use the protocol to identify new risk factors for prostate cancer.

Fall 2016 Masters Paper Presentations

Mar. 21 (Tue) 2:30-3:00 Lukke Sweet

Fall 2016 Graduates: Changlin Wang, Faizan Khatri, Micah Ruth, Lina Zhang, Paul Traxler

Past Colloquiums

Oct. 27 (Thu)  2:00-3:00     Dr. Ananda Sen (School of Public Health, UMichigan)  "Competing Risks and Missing Cause of Failure: An Overview"  

Nov. 10 (Thu)  2:00-3:00     Dr. Won Chang (Dept. of Mathematical Sciences, UCincinnati)  "Improving Ice Sheet Model Calibration Using Paleoclimate and Modern Data"

Nov. 17 (Thu) 2:00-3:00 Dr. Siva Sivaganesan, (Dept. of Mathematical Sciences, U of Cincinnati) (CANCELLED)