Pre-prints, re-prints and updates. (incomplete list)

Pan and Zhou (1998) Using 1-parameter sub-family of distributions in empirical likelihood ratio with censored data Updated 1/2001

Pan and Zhou (1998) Empirical likelihood ratios in terms of cumulative hazard.

Zhou and Chen (1999) Testing and confidece intervals with doubly censored dada.

Zhou (1999) Blinded Power estimation for the Kaplan-Meier/Nelson-Aalen.

Zhou (1999) Nonparametric Bayes estimator of Survival functions with interval/doubly censored data.

Zhou (2000) Empirical Envelope MLE and likelihood ratio test.

Zhou (2000) Nonparametric Bayes estimator of survival functions for doubly/interval censored data. Updated 2002.

Zhou (2000) Understanding the Cox regression model with time-change covariates. An updated version (include frailty models). (9/2001)

Chen and Zhou (2001) Computing Censored Empirical likelihood by Quadratic Programing.

Zhou and Cui (2000) New Mathematical model for comparative judgment Power point file. Presented at NIP 16.

Zhou, M. (2002) Empirical likelihood ratio for arbitrarily censored/truncated data by EM algorithm.

Kim, K. and Zhou, M. (2003). Symmetric location estimation/testing by empirical likelihood

Zhou, M. and Li, G. (2004). Empirical likelihood analysis of the Buckley-James estimator
Zhou, M. (2004). Empirical likelihood analysis of the rank estimator for the censored AFT model.
Su, Y. and Zhou, M. (2004). On a connection between the Bradley-Terry model and the Cox proportional hazards model.
Zhou, M. and Luan, J. (2005) Nonparametric Bayes Estimator of Survival Function for Right-Censoring and Left-Truncation Data
Bathke, A., Kim, M. and Zhou, M. (2005) Combine multiple tests by empirical likelihood with censored data
Zhou, M. (2005) The Cox proportional hazards model with a partially known baseline
Zhou, M. Bathke, A., Kim, M. (2006) Empirical likelihood for Heteroscedastic AFT model.
Zhou, M. and Fang, H. (2006) A Comparison of Poisson and Bionomial Empirical Likelihood.
Zhou, M. (2007)  Empirical Likelihood for Counting Processes.
Zhou, M. (2008)  Empirical Likelihood Ratio Test for Mean and Median Residual Lifetime (with censored data)

Some R packages related to the research work: (first two also available at CRAN)

emplik Empirical likelihood ratio, can handle censored/truncated data. (it should be also on CRAN). A plot of 2-dim confidence region.
dblcens Compute NPMLE of CDF from doubly censored data.
NPBayes Nonparametric Bayes estimator of CDF from arbitrary censored data.
rankreg: A package for rank estimators with censored AFT model.
CoxEL: A package to compute empirical likelihood test when side info on baseline hazard is available for a Cox model.

Ph.D. students I directed (with year graduated):

Ding, Li (1994); Zhang, Yuan (1995); Pan, XiaoRong (1997); Fang, Hui (2000); Chen, Kun (2001); Kim, Kyoungmi (2003);
Su, Yuhua (2003); Luan, Julia (2004); Chen, Min (2005);  Zhu, Hua (2007).

I am currently interested in these research problems:

Empirical likelihood ratio method for censored data, involving AFT models, Cox models and quantile regressions.
Empirical likelihood analysis of some non-standard problems --- where NPMLE do not exist. (envelope empirical likelihood ratio).
Computational method for the Empirical Likelihood Ratio.

Regression models for ranking data --- improving the Bradley-Terry model (K ranking at a time). Scaling.

Better Monte Carlo method in the computation of the trace of VERY LARGE matrix.

Statistical analysis for doubly censored data --- computation of the distribution estimator, testing and confidence intervals.

I have also worked on the problems related to the Kaplan-Meier estimator, the Cox proportional hazards regression model, and the Nelson-Aalen estimator.

Nonparametric Bayes estimator of survival curve with arbitrary censored data.

Slides of Recent talks:

Log-rank test, improved. PDF file.
Empirical Likelihood and AFT models PDF file.
Computation of censored/truncated empirical likelihood ratio by EM PDF file.
What is a Cox model? Power point file.
Improving Cox model. PDF file.
Power point file on the intro to empirical likelihood Power point file.
PDF file of 2 examples (simulations): double censored data and modified Cox model estimators: PDF file.