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
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
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)