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William R. Schucany

Professor


 


Contact

Department of Statistical Science
Southern Methodist University
P O Box 750332
Dallas, TX 75275-0332
Phone:  214-768-2464
Fax: 214-768-4035 
email:    schucany@mail.smu.edu

Education

 

B.A., Math., 1963, The University of Texas

M.A., Math., 1965, The University of Texas

Ph.D., Stat., 1970, Southern Methodist University

 

 CURRICULUM VITAE


Research Interests

  • Data analysis in biomedical research,
  • Gene expression and association studies,
  • Rank tests for trend
  • Nonparametric curve estimation, local linear and kernels, adaptive bandwidths, wavelets
  • Resampling methodologies including jackknife, bootstrap, and randomization tests
  •  Analysis of medical imaging data.

Teaching

  • STAT 1301-Introduction to Statistics
  • STAT 6327-28-Introduction to Mathematical Statistics
  • STAT 6385-Nonparametric Statistics
  • STAT 6386-Data Mining and Statistical Learning

Research

Selected Publications

Books and Chapters

·         The Generalized Jackknife Statistic, H. L. Gray and W. R. Schucany, Marcel Dekker, Inc., New York (1972).

·         “Analysis of data from censored samples," with Michael, Chapter 11 in Goodness of Fit Techniques, ed., by R. D'Agostino and M. Stephens, Marcel Dekker, Inc., New York (1986).

·         Statistics of Quality, edited with S. Ghosh and W. B. Smith, Marcel Dekker, Inc., New York (1996).

·         “Donald Owen’s Contribution to the Statistics of Quality” Chapter in Statistics of Quality, Marcel Dekker, Inc.:  New York (1996).

·         “Magnetic Field Quality Investigations for Superconducting Super Collider Magnets,” with Gunst, Chapter in Statistics of Quality, Marcel Dekker, Inc., New York (1996).

Refereed Journal Articles

·         “On the Evaluation of Distribution Functions," with Gray, J. Amer. Statist. Assoc., 63  (1968), 715-720.

·         “Lower Confidence Limits for Availability Assuming Lognormally Distributed Repair Times," with Gray, IEEE Transactions on Reliability, R-18 (1969), 157-162.

·         “Some Limiting Cases of the G-Transformation," with Gray, Mathematics of Computation, 23 (1969), 849-860.

·         “Bayesian Prediction and Population Size Assumptions," with Bratcher and Hunt, Technometrics, 13 (1971), 678-681.

·         “On Bias Reduction in Estimation," with Gray and Owen, J. Amer. Statist. Assoc., 66 (1971), 524-533.

·         “A Survey of Statistical Packages," with Shannon and Minton, Computing Surveys, 4 (1972), 65-79.

·         “Order Statistics in Simulation," J. Statist. Compt. Simul., 1 (1972), 281-286.

·         “A Rank Test for Two Group Concordance," with Frawley, Psychometrika, 38 (1973), 249-258.

·         “On the Jackknife Statistic and its Relation to UMVU Estimators in the Normal   Case," with Gray and Watkins, Commun. Statist., 2 1973), 285-320.

·         “Some Properties of a Test for Concordance of Two Groups of Rankings," with Li, Biometrika, 62 (1975), 417-423.

·         “On the Generalized Jackknife and its Relation to Statistical Differentials," with Gray and Watkins, Biometrika, 62 (1975), 637-642.

·         “Generating Random Variates Using Transformations with Multiple Roots," with Michael and Haas, The American Statistician, 30 (1976), 88-90.

·         “Best Estimates of Functions of Parameters in the Gamma and Gaussian Distributions”, with Gray and Woodward, IEEE Trans. on Reliability, R-25 (1976), 95-99.

·         “Efficient Estimation of P(Y<X) in the Exponential Case," with Kelley and Kelley, Technometrics, 18 (1976), 359-360.

·         “Analysis of Multiple Sets of Incomplete Rankings," with Beckett, Commun. Statist. 5 (1976), 1327-1334.

·         “Improvement of Kernel Type Density Estimators," with Sommers, J. Amer. Statist. Assoc., 72 (1977), 420-423.

·         “Combination of a Preference Pattern with the Triangle Taste Test," with Woodward, Biometrics, 33 (1977), 31-39.

·         “Adjusting the Degrees of Freedom for the Jackknife," with Woodward, Commun. Statist., 6 (1977), 439-442.

·         “Bibliography for Statistical Consulting," with Woodward, Biometrics, 33 (1977), 564-565.

·         “Correlation Structure in Farlie-Gumbel-Morgenstern Distributions," with Parr and Boyer, Biometrika, 65 (1978), 650-653.

·         “A New Approach to Testing Goodness-of-Fit for Censored Samples," with Michael, Technometrics, 21 (1979), 435-441.

·         “Analysis of the Reliability of a New Scale for Housing Quality," with Mansfield, Woodward and Hess, J. Statist. Planning and Inference, 3 (1979), 305-313.

·         “Concordance among Categorized groups of Judges," with Beckett, J. of Edu. Statist., 4 (1979), 125-137.

·         “Robustness of Minimum Distance Estimation," with Parr, J. Amer. Statist. Assoc., 75 (1980), 616-624.

·         “A Special Distribution Result for Bilinear Forms," with Beckett and Broffitt, J. Amer. Statist. Assoc., 75 (1980), 466-468.

·         “The Jackknife: A Bibliography" with Parr, Int. Statist. Rev., 48 (1980), 73-78.

·         “Jackknifing L-Statistics with Smooth Weight Functions," with Parr, J. Amer. Statist. Assoc., 77 (1982), 629-638.

·         “Minimum Distance Estimation and Components of Goodness-of-Fit Statistics," with Parr, J. Roy Statist. Soc., Ser. B, 44 (1982), 178-189.

·         “An Empirical Study of Related Correlation Coefficients", with Boyer and Palachek, J. Edu. Statist., 8 (1983), 75-86.

·         “On the Correlation of a Group of Rankings with an External Ordering Relative to the Internal Concordance", with Palachek, Statist. Prob. Letters, 1 (1983), 259-263.

·         “On Approximate Confidence Intervals for Measures of Concordance," with Palachek, Psychometrika, 49 (1984), 133-141.

·         “A Comparison of Minimum Distance and Maximum Likelihood Estimation of a Mixture Proportion," with Woodward, Parr & Lindsey, J. Amer. Statist. Assoc.79 (1984), 590-598.

·         “The Influence Curve and Goodness of Fit" with Michael, J. Amer. Statist. Assoc., 80 (1985), 678-682.

·         “Locally Optimal Window Widths for Kernel Density Estimation with Large Samples", Statist. Prob. Letters, 7 (1989), 401-405.

·         “A Local Cross-Validation Algorithm", with Hall, Statist. Prob. Letters, 8 (1989), 109-117.

·         “Jackknifing R-estimators", with Sheather, Biometrika, 76, (1989), 393-398.

·         “On Nonparametric Regression with Higher-order Kernels", J. Statist. Planning & Inference, 23, (1989), 145-151.

·         “Small Sample Variance Estimators for U-Statistics," with Bankson, Austral. J. Statist., 31 (1989), 417-426.

·         “Better Nonparametric Bootstrap Confidence Intervals for the Correlation Coefficient," with Hall and Martin, J. Statist. Comp. Simul., 33 (1989), 161-172.

·         “Bootstrap Prediction Intervals for Autoregression", with Thombs, J. Amer. Statist. Assoc., 85 (1990), 486-492.

·         “Jackknife Estimation of the Bootstrap Acceleration Constant", with Frangos, Comp. Statist. Data Anal., 9 (1990), 271-281.

·         “Gaussian-based Kernels", with Wand, Canadian J. Statist., 18 (1990), 197-204.

·         “One-step Bootstrapping for Smooth Iterative Procedures", with Wang, J. Roy. Statist. Soc., B, 53 (1991), 587-596.

·         “Adaptive Bandwidth Choice for Kernel Regression", J. Amer. Statist. Assoc., 90 (1995), 535-540.

·         “Improved Bootstrap Confidence Intervals in Certain Toxicological Experiments" with Frangos, Commun. in Statist., Theo. & Meth., A24, (1995), 829-844.

·         “A Comparison of Confidence Intervals from R-estimators in Regression", with George, McKean, and Sheather, J. Statist. Comp. Simul., 53 (1995), 13-22.

·         “On Combining Independent Nonparametric Regression Estimators", with Gerard, Statist. Prob. Letters 26 (1996), 25-34.

·         "Scatterplots for Unordered Pairs", with Ernst and Guerra, The American Statistician, 50 (1996), 260-265.

·         "Kernel Smoothing to Improve Bootstrap Confidence Intervals", with Polansky, J. Roy. Statist. Soc., B., 59 (1997), 821-838.

·         "Asymptotically Efficient Nonparametric Estimation with Additional Dichotomous Observations", with Koshevnik, Statistica Sinica, 7 (1997), 1121-1133.

·         "Methodology for Nonparametric Regression from Independent Sources", with Gerard, Computational Statistics and Data Analysis 25(1997), 287-304.

·         “Smoothed Bootstrap Confidence Intervals with Discrete Data", with Guerra and Polansky, Computational Statistics and Data Analysis, 26 (1997), 163-176.

·         "Locating Exotherms in Differential Thermal Analysis with Nonparametric Regression," with Gerard, J. Agri. Biol. Environ. Statist., 2 (1997), 255-268.

·         “Nonparametric Kernel Regression Estimation Near Endpoints", with Cha, Journal of Statistical Planning and Inference, 66 (1998), 289-304.

·         “A Class of Permutation Tests of Bivariate Interchangeability”, with Ernst, Journal of American Statistical Association, 94 (1999), 273-284.

·         “Local Bandwidth Selection for Kernel Estimation of Population Densities with Line Transect Sampling”, with Gerard, Biometrics, 55 (1999), 769-773.

·         "Combining Population Density Estimates in Line Transect Sampling using the Kernel Method", with Gerard, J. Agri. Biol. Environ. Statist., 7 (2002), 233-242.

·         "The Mixture Approach for Simulating Bivariate Distributions with Specified Correlations", with Michael, The American Statistician, 56 (2002), 48-54.

·         "Simulating Multivariate Distributions with Specific Correlations", with Harris and Minhajuddin, J. Statist. Comp. Simul., 74 (2004), 599-607.

·         "Kernel Smoothers: An overview of curve estimators", Statistical Science, 19 (2004), 663-675.

·         "Improved Agreement Between Talairach and MNI Coordinate Spaces in Deep Brain Regions", with Carmack, Spence, Gunst, Woodward and Haley, NeuroImage, 22 (2004), 367-371.

·         "Robust and Efficient Estimation for the Generalized Pareto Distribution," with S. Juarez, Extremes, 7 (2004), 237-251.

·         "Preliminary Goodness-of-fit Tests for Normality Do Not Validate the One-sample Student t”, with Ng, Communications in Statistics: Theory & Methods, 35 (2006), 2275-2286.

·         "Using a White Matter Reference to Remove the Dependency of Global Signal on Experimental Conditions in SPECT Analyses”, with Spence, Carmack, Gunst, Woodward and Haley, NeuroImage, 32 (2006), 49-53.

·         ``A Note on the Asymptotic Distribution of the Minimum Density Power Divergence Estimator”, with Juárez, IMS Lecture Notes, 2nd Lehman Symposium-Optimality, 49 (2006), 334-339.

·         "Accounting for Spatial Dependence in the Analysis of SPECT Brain Imaging Data”, with Spence, Carmack, Gunst, Woodward, and Haley, Journal of American Statistical Association, 102 (2007), 464- 473.

·         “An Enhanced Sign Test for Dependent Binary Data with Small Numbers of Clusters”, with Gerard, Comp. Statist. & Data Analysis, 51 (2007), 4622-4632.

·         “Bootstrap Tests for Multivariate Directional Hypotheses”, with Minhajuddin, Frawley, and Woodward, J. Statist. Planning and Inference, 137 (2007), 2302-2315.

·         “Undercoverage of Wavelet-Based Resampling Confidence Intervals”, with Tang and Woodward, Commun. Statist.-Simulat.& Comput, 37 (2008), 1307-1315.

·         “Abnormal Brain Response to Cholinergic Challenge in Chronic Encephalopathy from the 1991 Gulf War”, Haley, Spence, Carmack, Gunst, Schucany, Petty, Devous, Bonte, and Trivedi, Psychiatry Research: Neuroimaging, 17 (2009), 207-220.

·         “Far Casting Cross Validation”, with Carmack, Spence, Gunst, Lin, and Haley, J. Comp. Graphical Statist., 18 (2009), 879-893.

·         “Testing the Ratio of Two Poisson Rates”, with Gu, Ng, and Tang, Biometrical Journal, 50 (2008), 283–298.

Selected Presentations

·         "Combining Bias Estimates in Nonparametric Regression from Independent Sources",contributed paper (with Pat Gerard), ASA Winter Meeting, Raleigh, NC, January 1995.

·         "Local bandwidth selection for kernel estimation of population density using line transect sampling," IMS Eastern Regional Meeting, Memphis, TN, March 1997 (with Pat Gerard).

·         “Using local polynomials to identify jumps, troughs, and shoulders:  An application to cold tolerance features in plants,” invited presentation with Pat Gerard at NSF Smoothing Workshop, Rice University, May 1997.

·         "Bootstrap Testing for Ordered Multivariate Means", Invited presentation, Symposium on Nonparametric Methods, Univ. Florida, Jan. 22-23, 1999.

·         "Treed Kernel Smoothers: Recursive Partitioning of Bandwidths for Local-Linear Regression", invited presentation Nonparametric Research Conference, Florida State University, Jan. 17-18, 2003 and Conference of Texas Statisticians, April 4, 2003.

·         "Recursive Partitioning for Changing Kriging Models in Brain Regions", with Carmack, Spence and Gunst, Joint Statistical Meetings, Toronto, August 2004.

·         “Recursive Partitioning to Change Smoothing Tools in Different Regions of Images”, with Carmack, Spence and Gunst.  Invited presentation at Nonparametric Research Conference, Texas A&M University, January 14-15, 2005.

Dissertation Direction

1.         Sommers, John P.  On the Improvement of Kernel Type Density Estimators  (June 1972)

2.         Frawley, William H.  Improved Approximate Confidence Levels.  (December 1972)

3.         Li, Lai-Hung Loretta.  A Rank Test Sensitive to Common Concordance in Two

            Groups  (August 1973).

4.         Minor, James Marshall.  Improved Estimation of f'(y)/f(y)  (August 1973).

5.         Beckett, James III.  Some Properties and Applications of a Statistic for Analyzing

            Concordance of Rankings of Groups of Judges  (June 1975).

6.         Michael, John R.  Goodness-of-Fit: Type II Censoring and Influence Functions  (Aug. 1977).

7.         Parr, William C.  Minimum Distance and Robust Estimation  (Aug. 1978).

8.         Ulrich, Gary.  Bilinear Rank Statistics  (December 1980).

9.         Palachek, Albert D.  Applications of U-Statistics to Testing and Estimation of

            Concordance  (Aug. 1981).

10.       Bosmia, Natwarlal J.  Minimum Distance Estimation of a Truncation Parameter  (Aug 1982).

11.       Lee, Young-Ha.  An Improvement of the Bootstrap Methodology (August 1983).

12.       Thombs, Lori A.  Bootstrap Prediction Intervals for Autoregressive Processes  (Aug 1985).

13.       Cha, Kyung-Joon.  Adaptive Bandwidth Selection for a Boundary Kernel in

            Nonparametric Regression (Aug. 1990).

14.       Bao, Weihang.  Simultaneous Selection of Local Bandwidth and Kernel Order (Dec 1990). 

15.       Perera, Nalin.  Nonparametric Regression with Measurement Error Model (Aug. 1993).

16.       Gerard, Patrick.  Combining Independent Nonparametric Regression Estimators (Dec  1993).

17.      Polansky, Alan.  Kernel Smoothing to Improve Bootstrap Confidence Intervals  (Aug1995)

18.       Ernst, Michael D.  Permutation Tests of Bivariate Interchangeability (May 1997).

19.       Adams, Bryan E.  Scatterplot Smoothing with Partially Variable Bandwidths (Aug 1998)

20.       Pitblado, Jeff.  Estimating Partially Variable Bandwidths in Local Linear Regression using an Information Criterion (May 2000)

21.       Juarez, Sergio.  Robust and Efficient Estimation for the Generalized Pareto Distribution  (May 2003)

22.       Minhajuddin, Abu.   Bootstrap Tests for Multivariate Ordered Alternative Hypotheses (August 2003)

23.       Jia, An.  Recursive Partitioning for Kernel Smoothers (December 2003)

24.       Carmack, Patrick S. Recursive Partitioning in Spatially Correlated Data (August 2004)

25.       Tang, Liansheng, Undercoverage of Wavelet-based Resampling Confidence Intervals and a Parametric Spatial Bootstrap (May 2005)

26.       Gedif, Kinfemichael.  Detecting Brain Activations in fMRI Experiments with a Cross- Correlation Statistic (May 2008)

27.       Kozlitina, Julia. Tests for Trend in the Analysis of Genetic Association Studies (December 2008)

Research Grants

“Bias Reduction", (ONR Contracts),

            $ 76,000 (January 1972-February 1975),  $288,000 (March 1975-January 1982)

            $145,000 (February 1982 - February 1985)

“Sample Reuse in Statistical Modeling", (ONR) $195,684 (June 1985-September 1988)

“Simulation Methodology on MELCOR Program”, Sandia National Laboratories,

            $9,931 (Sept 1984 - March 1985)

“Statistical Modeling of Antibody Repertoire", University of Maryland (NIH), $16,000

            (June 1990 - September 1990)

“Statistical Methods for Magnetic Field Quality Assurance", (DOE/SSC) with Gunst, $151,000

            (June 1992 - July 1993)

"Conference on Nonparametrics in Large, Multidimensional Data Mining", (NSF) $10,000

            (Dec. 2000 - May 2001)

"A Project to Investigate Innovative Ways of Analyzing Neuro-Imaging Data and the Associated

Records of Human Subjects", The University of Texas Southwestern Medical Center at

Dallas/U. S. Army Medical Research Acquisition Activity (DOD) with Gunst and Woodward $628,000 (July 2002 - May 2005)


Teaching

 Fall 2010

·         STAT 8398, “Dissertation Research”

Spring 2011

·         STAT 8399, “Dissertation Research”


Professional Offices

Communications in Statistics, Associate Editor (1972-1992), Senior Editor (1992- present)

The American Statistician, Editor (1991-1993)

J. American  Statistical Association, Associate Editor (1983-1985)

J. Educational Statistics, Associate Editor (1981-1983)

Statistics: Textbooks and Monographs, Coordinating Editor, Marcel Dekker (1992 - present)

ASA, Section on Statistical Education, Nominations Committee (1977), Chair-elect (1985),

            Chair (1986); ad hoc Committee on the Economic Status of the Profession 

            (1985-88); Committee on Publications (1990-1992); Committee on Nominations

            (1994-96); Publications Management Committee (1998-2000)

            Section on Nonparametrics Chair-Elect (2000), Chair (2001)

            Search Committee, The American Statistician Editor (2001)

North Texas Chapter of the American Statistical Association (ASA)

Vice President (1970-71); President (1971-72), Secretary (1972-78)

Sigma Xi, SMU Chapter, Treasurer (1976-77), V.P. (1982-83), President (1983-84)

Phi Beta Kappa, SMU Chapter, Audit Committee Chair (1982),  Membership (1990-1992)

Organizer and Program Chairman, Texas Conference of Statisticians  (1981 and 1982),

            Program Co-Chair (1991, 1996, 1999 and 2005)


Honors and Awards

Phi Beta Kappa

Research Award, SMU Chapter, Sigma Xi (1979)

Fellow of the American Statistical Association (1981)

Don Owen Award from San Antonio Chapter of ASA (1984)

Elected Member of International Statistical Institute (1994)

ASA Founders Award (2004)

Paul Minton Service Award (2009)


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