Annual Report 2008.pdf - SAMSI

Research Areas
Bayesian Analysis of Spatio-survival Models – Analysis of SEER Data (from NCI)
Collaborator & Mentor: Dipak Dey
We analyzed the SEER database on the multiple-cancer data using the populations of Iowa and
California using a cure rate model. This new model is introduced to capture the possibilities of
complete cure in some of the specific cancer types. A spatial analysis is also done using MCAR
models to ascertain the presence of a geographical factor for the prevalence of cancer and also
the chances of a complete cure.
Other Research
Research Started or Continued at SAMSI
1. Multivariate monotone data – with Donald Richards.
2. Bayesian isotonic regression – with Dipak K. Dey – submitted to Candian J. Statist.
3. Spatio-survival analysis for cancer data – with Dipak K. Dey
4. Power prior and propriety for generalized linear model using isotonic regression – with
Samiran Ghosh.
Papers from Ph.D. Research:
1. To appear in Journal of Statistical Planning and Inference : Estimation of smooth link
function in Monotone response models – Joint work with Moulinath Banerjee.
2. To appear in Statistics and Probability Letters : Penalized Least Square Regression in
Isotonic Regression.
3. Invited revision from Scandinavian Journal of Statistics : Penalized Likelihood ratio in
the density estimation problem.
Presentations of Other Research:
1. Bayesian exponential family isotonic regression – Colorado State, October 2007.
2. Bayesian analysis of Spatio-survival models - University of Connecticut, April 2008.
3. Estimation of a decreasing density using Likelihood ratio – New England Statistics
Symposium, Boston, April 2008
Continuing Collaborations from SAMSI Random Matrices Program:
1. Spline density estimation – with Mary C. Meyer
2. Analysis of test cricket matches using multivariate structures.
Jesus Rios (Risk Analysis, Extreme Events, Decision Theory)
Activity Report
Courses: Risk Analysis
Workshops Attended:
Risk Analysis Opening Workshop
RISK: Perception, Policy and Practice
EXTREMES: Events, Models and Mathematical Theory
Risk Revisited: Progress and Challenges (planned)
Postdoc-Grad Student Seminar Presentations:
4. Analyzing Adversarial Threats – 17 October 2007
5. Game Theoretic Concepts for Adversarial Risk Analysis – 25 March 2008
Undergraduate Two-day Workshop – 9-10 November 2007:
1. Discovering Influence Diagrams with GeNIe: Decision Analysis for Risk Management