Publications of Qiqing Yu

Research Articles:

Under revision

Accepted

• A generalized log-rank test for interval-censored failure time data via multiple imputation. (with J.L. Huang, C.S. Lee) Statistics in Medicine
• Extensions of Buckley-James estimators to modified case-cohort studies. (with M.G. Yu) Journal of Applied Probability and Statistics

2008

• Relationship between the Cox, Lehmann, Weibull and Accelerated lifetime models (with R. Chappell, G.Y.C Wong, Y.T. Hsu, M. Mazur) Comm. Statist. A---Theory methods 37 865-870.

2007

• Buckley-James-type estimators under the classical case cohort design. (with G.Y.C. Wong and M.G. Yu) Ann. Inst. Statist. Math. 59 675-695.
• Asymptotic distributions of the Buckley-James estimator under non-standard conditions. (With FH Kong). Statistica Sinica, Vol 17 341-360
• A bivariate interval censorship model for partnership formation. (With L.Y. Wong). Journal of Multivariate Analysis Vol. 98 2 370-383.

2006

• A note on the proportional hazard s model with discrete data. Statistics and Probability Letters 77 735-739
• Buckley-James-type estimators in classical case-cohort studies. (with M.G. Yu) International Journal of Statistics and Management Systems 82-103.
• Consistency of the semi-parametric MLE in linear regression models with interval-censored data. (With G.Y.C. Wong and F.H. Kong). Scan. J. Statist. 33 367-378.
• Consistency of the generalized MLE with multivariate mixed case interval-censored data. (With Yu, S.H. and G.Y.C. Wong). Journal of Multivariate Analysis 97 720-732

2005

• Unbiasedness of the Theil-Sen estimator. (With Wang, X.Q.). Journal of Nonparametric Statistics 685-695
• A modified semi-parametric MLE in linear regression analysis with complete data or right-censored data. (With G.Y.C. Wong). Technometrics 47 34-42

2004

• A sufficient condition for admissibility of the Wilcoxon test in the classical two-sample problem. Statistics, 38 295-306

2003

• The semi-parametric MLE in linear regression with right-censored data. (With G.Y.C. Wong). Journal of Statistical computation and simulation, 73 833-848.
• Asymptotic properties of the generalized semi-parametric MLE in linear regression. (With G.Y.C. Wong). Statistica Sinica 13 311-326
• Semi-parametric MLE in simple linear regression with interval-censored data. (With G.Y.C. Wong). Communications in Statistics-Simulation and Computation 32 147-164.

2002

• How to find all Buckley-James estimates instead of just one ? (With G.Y.C. Wong). Journal of Statistical computation and simulation. 72, 451-460.
• A minimum distance estimation approach to the two-sample location-scale problem. (With Z.Y. Zhang). Lifetime Data Analysis. 8, 289-305.
• Asymptotic properties of a modified semi-parametric MLE in linear regression analysis with right-censored data. (With G.Y.C. Wong). Acta Mathematica Sinica 18 405-416.

2001

• Asymptotic properties of the GMLE of self-consistent estimators with doubly-censored data. (With L. Li) Acta Math. Sinica . 17, 581-594.
• Asymptotic properties of self-consistent estimators with mixed interval-censored data. (With G.Y.C. Wong and L. Li) Ann. Inst. Statist. Math. . 53, 469-486.

2000

• Estimation of a joint dictribution fucntion with multivariate interval-censored data when the nonparametric MLE is not unique. (With G.Y.C. Wong and Q.M. He) Biometrical Journal. 42, 747-763.
• Inadmissibility and admissibility of randomized Wilcoxon tests in discrete two-sample problems. Statistics & Decisions. 18, 35-48.
• Consistency of the GMLE with mixed case interval-censored data. (With A. Schick) Scan. J. of Statist. Vol. 27. 45-55.
• On consistency of the self-consistent estimator of survival functions with interval censored data. (With L. Li and G.Y.C. Wong) Scan. J. of Statist. Vol. 27, 35-44.

1999

• Generalized MLE Of a joint distribution function with multivariate interval-censored data. (With G.Y.C. Wong). {J. of Multi. Anal.} J. of Multi. Anal. 69, 155-166.

1998

• Asymptotic properties of the GMLE in the case 1 interval-censorship model with discrete inspection times. (With A. Schick, L. Li and G. Y. C. Wong). Canadian Journal of Statistics Vol. 26, No. 4, 619-627.
• Asymptotic variance of the GMLE of a survival function with interval-censored data. (With L. Li and G.Y.C. Wong) Sankhya,. 60, 184-197.
• Asymptotic properties of the GMLE with case 2 interval-censored data. (With A. Schick, L. Li and G. Y. C. Wong). Statistics & Probability Letters, 223-228. .
• Admissibility of the best invariant estimators of a discrete distribution function. Statistica Sinica, 8. 377-392.
• Consistency of self-consistent estimators of a discrete distribution function with bivariate right-censored data. (With G.Y.C. Wong). Commun. Statist. 27, 1461-1476.

1997

• An EM algorithm for smoothing the self-consistent estimator of survival functions with interval-censored data. (With L. Li and T. Watkins) Scan. J. of Statist. 24, 531-542
• Self-consistent estimators of survival functions with doubly-censored data. (With L. Li). Commun. Statist., 2609-2623
• Comparing estimates of the effects of air pollution on human mortality obtained using different regression methodologies. (With L. A. Baxter, S. J. Finch and W. L. Fredrick) Risk analysis

1996

• Analysis and prediction of hydrogen bonding of protein-DNA complexes on parallel processors. (With G. Campbell, Y. Deng, J. Glimm, Y. Wang, M. Eisenberg and A. Grollman.) J. of Comput. Chem., 17. 1712-1725.

1995

• On minimax estimation of a survival function under the right censorship model. (With E. G. Phadia) Statistics & Decisions, 14, 73-96.
• An analogy between nonparametric problems of estimating a distribution function and their parametric versions. (With L. Kuo) Sankhya A., 57. 472-485.
• Admissibility and minimaxity of the UMVU estimator of P(X is less than Y). (With Z. Govindarajulu) Annals of Satistics 23. 598-607.

1994

• On the strong consistency of the product limit estimator. (With L. Li) Sankhya A., 56. 416-430.

1993

• Admissibility of the best invariant estimator of a distribution function under the Kolmogorov-Smirnov Loss. (With E. G. Phadia) Commun. Statist., 22(8). 2103-2124.
• Global minimization for problems with multiple local minima. (With Y. Deng, J. Glimm and M. Eisenberg) Appl. Math. Let., 6, No. 2. 89-90.
• Admissibility of the empirical distribution function in discrete nonparametric invariant problems. Statistics & Probability Letters, 18. 337-343.

1992

• Genomic mapping by single copy landmark detection: a predictive model with a discrete mathematical approach. (With T. Marr and X. Yan) Mammalian Genome, 3. 644-649.
• Minimaxity of the best invariant estimator of a distribution function under the Kolmogorov-Smirnov Loss. (With E. G. Phadia) Annals of Statistics, 20, 2192-2195.
• Minimaxity of the empirical distribution function in discrete invariant estimation of a distribution function. Statistics & Decisions, 10. 25-38.
• A General method of finding a minimax estimator of a distribution function when no equalizer rule is available. Canadian Journal of Statistics 20, No. 3. 281-290.
• Minimax invariant estimator of a continuous distribution function. Ann. Inst. Statist. Math. 44, 729-735.
• Inadmissibility of the best invariant estimator of a distribution function. Sankhya A., 54. 74-79.

1991

• Minimaxity and admissibility of the product limit estimator. (Wtih E. G. Phadia) Ann. Inst. Statist. Math. 43, No. 3. 579-596.
• Minimaxity of the empirical distribution function in invariant estimation. (With M. S. Chow) Ann. Statist. 19, 935-951.

1990

• Admissibility of linear estimators in the fisheries census. Metrika 37, 245-252.

1989

• Methodology for the invariant estimation of a continuous distribution function. Ann. Inst. Statist. Math. 41, 503-520.
• Admissibility of the best invariant estimator of a distribution function. Statistics & Decisions 7, 1-14.
• Admissibility of the empirical distribution function in the invariant problem. Statistics $\&$ Decisions 7, 4. 383-398.
• Inadmissibility of the empirical distribution function in continuous invariant problems. Ann. Statist. 17, 1347-1359.