Service Engineer
Resume:
Steve Verrill
abpi4v@r.postjobfree.com
U.S.D.A. Forest Products Laboratory
Madison, WI 53726
Mathematical Statistician,
U.S.D.A. Forest Products Laboratory
Responsibilities and Expertise
design of experiments
data analysis
research that is related to consulting problems
reviews of study plans, research reports, papers
development of statistical computing routines (e.g.,
reliability distribution fits, power
calculations, graphics, PCR/PLS/Ridge Regression)
development of
1987 to 1988:
Group Leader, Statistics and Probability Group, Computing and
Mathematics Research Division,
Lawrence Livermore National Laboratory
1981 to 1988:
Mathematician, Lawrence Livermore National Laboratory
Responsibilities and Expertise
nonlinear regression problems including the development and
maintenance of a computer package
general linear models problems including the development and
maintenance of a computer package
design of experiments, and reliability and safety analyses for
the Weapons Engineering Division
reliability analyses for the Magnetic Fusion Test Facility
nonparametric and multivariate analysis
general mathematical and statistical consulting including
extensive experience with probability modeling, optimization,
and geometrical and combinatorial problems
1979 to 1981:
Mathematical Statistician, U.S.D.A. Forest Products Laboratory
1976 to 1981:
Teaching and Research Assistant, Statistics Department,
University of Wisconsin - Madison
Ph.D. in
statistics from the
University of Wisconsin - Madison, 1981
M.A. in
mathematics from the University of Wisconsin - Madison,
1979
B.A. in mathematics from the University of Wisconsin - Madison,
1976.
Graduated with honors.
35 years of programming experience
Currently programming in FORTRAN, Perl, and Java
Have programmed in NUAlgol, Basic, and C
SLATEC, NAG, IMSL, LINPACK, and LAPACK mathematical
subroutine libraries
R, S-Plus, SAS, MINITAB, BMDP, and SPSS statistical packages
HALO, GRAFLIB, DI-3000, SunCore, SunGKS, PriorGKS, and Java
graphics libraries,
including the creation of 3-d applications from 2-d primitives
LaTeX, HTML, and troff markup languages
Twenty-two years of experience as a system administrator of
Sun workstations --- both Solaris 1.x (BSD UNIX) and
Solaris 2.x (System V UNIX)
Certified Sun System Administrator (Solaris 2.x)
Linux experience
NCSA and Apache WWW server administration experience
Have used Perl to write CGI scripts that drive FORTRAN
programs over the WWW
(
http://www1.fpl.fs.fed.us/webpr.steve.html)
Have written
Java
applets/applications
(http://www1.fpl.fs.fed.us/javapr.html)
Verrill and Johnson (1982), "The Asymptotic Distribution of a
Special Quadratic Form," UW-Madison Department of Statistics
Technical Report 698.
Verrill and Johnson (1983), "The Asymptotic Distributions of
Censored Data Versions of the Shapiro-Wilk Test of Normality Statistic,"
UW-Madison Department of Statistics Technical Report 702.
Bendtsen, Gjovik, and Verrill (1983), "Mechanical Properties
of Longleaf Pine Treated with Waterborne Salt Preservatives,"
USDA Forest Service Forest Products Laboratory Research Paper #434.
Verrill (1983), "Minitab," Tentacle, 3(2), 7-8.
(Tentacle is a Lawrence Livermore National Laboratory publication.)
Verrill (1984), "A General Linear Models Program," Tentacle, 4(12), 1-6.
Verrill (1985), "Power Calculations and GLM2," Tentacle, 5(4), 11-13.
Violet, Verrill, Balaban, and Borg (1986),
"The 57 Fe Magnetic Hyperfine Field in Au-Fe Alloys,"
Hyperfine Interactions, 28, 985-988.
Verrill (1986), "Normal Probability Plots and the Shapiro-Wilk
Test of Normality," Tentacle, 6(8), 1-6.
Verrill and Johnson (1987), "The Asymptotic Equivalence of
Some Modified Shapiro-Wilk Statistics -- Complete and Censored
Sample Cases," Annals of Statistics, 15, 413-419.
Johnson, Verrill, and Moore (1987), "Two Sample Rank Tests
for Detecting Changes in a Small Proportion of the Treated Population,"
Biometrics, 43, 641-655.
Verrill (1987), "NREG: A Nonlinear Regression Package,"
Tentacle, 7(4), 27-31.
Verrill and Johnson (1987), "A Large Sample Approximation to the
Distribution of a Modified Shapiro-Wilk Statistic Under Right
Censoring," Lawrence Livermore National Laboratory UCRL-97603.
Axelrod, Verrill, Patrick, and Yow (1988), "A Monte Carlo Investigation
of a Proposed Screen for NX-Borehole Jack Data,"
The ASTM Geotechnical Testing Journal, 11, 20-29.
Verrill and Johnson (1988), "Tables and Large Sample Distribution Theory
for Censored Data Correlation Statistics for Testing Normality,"
Journal of the American Statistical Association, 83,
1192-1197.
Verrill and Johnson (1988), "Asymptotic Distributions for Quadratic Forms
with Applications to Censored Data Tests of Fit,"
Communications in Statistics - Theory and Methods, 17.
Verrill and Durst (1988), "Probability Models of the MSAD
Arming Process," Lawrence Livermore National Laboratory
technical report.
Verrill and Hickman (1988), "Elementary Sources of Concurrency in a
Standard Quasi-Newton Unconstrained Nonlinear Optimization Algorithm,"
Lawrence Livermore National Laboratory UCID-21511.
Verrill, Axelrod, and Durst (1990), "We've Got the Positive
Correlation BLUEs," The American Statistician, 44,
171-173.
Bohnhoff, Moody, Verrill, and Shirek (1990), "Influence of Butt
Joints and Their Reinforcement on Nail-Laminated Post Properties,"
proceedings of the 1990 International Summer Meeting of the American
Society of Agricultural Engineers.
Bohnhoff, Moody, Verrill, and Shirek (1991), "Bending
Properties of Reinforced and Unreinforced Spliced Nail-Laminated
Posts," USDA Forest Service Forest Products Laboratory Research Paper #503.
Johnson and Verrill (1991), "The Large Sample Distribution of the
Shapiro-Wilk Statistic and its Variants Under Type I or Type
II Right Censoring," Statistics and
Probability Letters, 12, 405-413.
Verrill (1993), "Predictor Sort Sampling, Tight T's, and the Analysis
of Covariance," The Journal of the American
Statistical Association, 88, 119-124.
Urbanik, Lee, Laufenberg, and Verrill (1993), "Combined Board
Performance Under Cyclic Humidity Conditions. Task II - Combined
Board Testing," Report to the CKPG consortium.
Anderson, Durst, Fienberg, Hardin, and Verrill (1993), "We
Cannot Ensure Quality With Certification," Amstat News, no.
203, November, 15-16.
Verrill (1994), Invited Comment on "Statistical Values,
Quality, and Certification" by Peter Imrey, The American
Statistician, 48, 78-79.
Efron, Fienberg, Freedman, Tanner, and Verrill (1994), "Survey
on Certification Follow-Up: Certification a `Very Bad Idea,' " Amstat News, no. 213, October, 11.
Milota, Tschernitz, Verrill, and Mianowski (1995), "Gas Permeability
of Plantation Loblolly Pine," Wood and Fiber Science, 27,
34-40.
Kuskowski, Lee, and Verrill (1995), "Hygroexpansivity - Papermaking
Variables and Corrugated Container Stacking Behavior. Final Report
CKPG Project 3686-1 Phase III," Report to the CKPG consortium.
De Souza Mendes, Simpson, and Verrill (1995), "Laboratory Test for
Grouping Tropical Species for Kiln Drying," Wood
Science and Technology, 29, 353-362.
Karlsson, McNatt, and Verrill (1996), "Vacuum-Pressure Soak Plus Ovendry
as an Accelerated-Aging Test for Wood-Based Panel Products," Forest
Products Journal, 46, 84-88.
Verrill and Green (1996), "Predictor Sort Sampling, Tight t's, and the
Analysis of Covariance: Theory, Tables, and Examples," USDA Forest
Service Forest Products Laboratory Research Paper #558.
Verrill, Green, and Herian (1997), "TT: A
Program That Implements Predictor Sort Design And Analysis,"
USDA Forest
Service Forest Products Laboratory General Technical Report #101.
Simpson and Verrill
(1997),
"Estimating Kiln Schedules for Tropical and
Temperate Hardwoods Using Specific Gravity,"
Forest Products Journal, 47, 64-68.
Kretschmann, Alden, and Verrill (1998), "Variations of Microfibril Angle
in Loblolly Pine: Comparison of Iodine Crystallization and X-ray
Diffraction Techniques," The Proceedings of the IAWA/IUFRO
International Workshop on
the Significance of Microfibril Angle to Wood Quality, 157-176.
Lindstrom, Evans, and Verrill (1998), "Influence of Cambial Age
and Growth Conditions on Microfibril Angle in Young Norway Spruce
(Picea abies [L.] Karst.), Holzforschung, 52, 573-581.
Verrill (1999), "When Good Confidence Intervals Go Bad: Predictor Sort
Experiments
and ANOVA,"
The American Statistician, 53, 38-42.
Verrill, Green, and Herian (2000), "Power Calculations in the Predictor
Sort Computer Program," USDA Forest Service
Forest Products Laboratory Research Note #277.
Verrill, Herian, and Green (2001), "Predictor Sort Sampling and
One-sided Confidence Bounds on Quantiles," Proceedings of the
Physical Sciences and Engineering Section at the 2001 American
Statistical Association Annual Meetings. Verrill, Kretschmann, and Herian (2001),
" -- A Graphically
Interactive Java Program that Fits Microfibril Angle X-ray Diffraction
Data,"
USDA Forest Service Forest Products Laboratory Research Note #283.
Verrill (2001), "Rolling Your Own: Linear Model Hypothesis Testing
and Power Calculations via the Singular Value Decomposition,"
Statistical Computing and Statistical Graphics Newsletter,
12, no. 1, 15-18.
Simpson, Wang, and Verrill (2003), "Heat Sterilization Time of
Ponderosa Pine and Douglas-Fir Boards and Square Timbers," USDA Forest
Service Forest Products Laboratory Research Paper #607.
Verrill (2003), "Confidence Bounds for Normal and Lognormal
Distribution Coefficients of Variation," USDA Forest
Service Forest Products Laboratory Research Paper #609.
Verrill, Herian, and Spelter (2004), "Estimating the Board Foot
to Cubic Foot Ratio," USDA Forest
Service Forest Products Laboratory Research Paper #616.
Verrill, Herian, and Green (2004), "Predictor Sort Sampling and
Confidence Bounds on Quantiles I: Asymptotic Theory," USDA Forest
Service Forest Products Laboratory Research Paper #623.
Hernandez, Green, Kretschmann, and Verrill (2005), "Improved Utilization
of Small-Diameter Ponderosa Pine in Glued-Laminated Timber," USDA Forest
Service Forest Products Laboratory Research Paper #625.
Verrill and Durst (2005), "The Decline and Fall
of Type II Error Rates," USDA Forest
Service Forest Products Laboratory Research Paper #628.
Verrill and Durst (2005), "The Decline and Fall
of Type II Error Rates,"
The American Statistician, 59, No. 4, 287-291.
Verrill, Kretschmann, and Herian (2006), "JMFA 2 --- A Graphically
Interactive Java Program That Fits Microfibril Angle X-ray
Diffraction Data," USDA Forest
Service Forest Products Laboratory Research Paper #635.
Verrill and Johnson (2007), "Confidence Bounds and Hypothesis Tests
for Normal Distribution Coefficients of Variation," USDA Forest
Service Forest Products Laboratory Research Paper #638.
Verrill and Johnson (2007), "Confidence Bounds and Hypothesis Tests
for Normal Distribution Coefficients of Variation,"
Communications in Statistics, Theory and Methods, 36,
no. 12, 2187-2206.
Verrill (2007), "Rate of Convergence of k-Step Newton
Estimators to Efficient Likelihood Estimators,"
Statistics and Probability Letters, 77, 1371-1376.
Forkman and Verrill (2008), "The Distribution of McKay's Approximation for
the Coefficient of Variation,"
Statistics and Probability Letters, 78, 10-14.
Verrill and Kretschmann (2008), "Material Variability and
Repetitive Member Allowable Property
Adjustments in Forest Products Engineering," USDA Forest
Service Forest Products Laboratory Research Paper #649.
Verrill, Johnson, and Evans (2009), "A Statistical Framework
for Comparing Lumber Sorting
Procedures," USDA Forest
Service Forest Products Laboratory Research Paper #651.
Verrill and Kretschmann (2009), "Material Variability and
Repetitive Member Factors for the Allowable Properties of Engineered
Wood Products," ASTM Journal of Testing and Evaluation,
37, no. 6.
Wang, Bergman, Simpson, Verrill, and Mace (2009), "Heat
Treatment Options and Heating Times for Ash Firewood," USDA Forest
Service Forest Products Laboratory General Technical Report #187.
Verrill and Kretschmann (2010), "Repetitive Member Factors for the
Allowable Properties of Wood Products," USDA Forest
Service Forest Products Laboratory Research Paper #657.
Verrill, Kretschmann, Herian, and Wiemann (2010),
"Concerns about a Variance Approach to the X-ray Diffractometric
Estimation of Microfibril Angle in Wood," USDA Forest Service Forest
Products Laboratory Research Paper #658.
Wang, Verrill, Lowell, Ross, and Herian (2010),
"Acoustic Sorting Models for Log Segregation," 16th International
Symposium on Nondestructive Testing and Evaluation of Wood.
Zhu, Verrill, Liu, Herian, Pan, and Rockwood (2011),
"On Polydispersity of Plant Biomass Recalcitrance and Its Effects on
Pretreatment Optimization for Sugar Production," Bioenerg.
Res., 4:201-210.
Verrill and Kretschmann (2011), "Sources of Confusion in the
Determination of ASTM Repetitive Member Factors for the Allowable
Properties of Wood Products," Journal of Structural Engineering, online 4/21/11, to appear in January 2012.
Verrill, Kretschmann, Herian, Wiemann, and Alden (2011),
"Concerns about a Variance Approach to X-ray Diffractometric
Estimation of Microfibril Angle in Wood," Wood and Fiber
Science, 43(2), pages 153-168.
Biometrics, Communications in Statistics,
Journal of the
American Statistical Association,
Journal of Computational Physics,
Journal of the International Association of Wood Anatomists,
Journal of Materials in Civil Engineering,
Journal of Statistical Software,
Progress in Paper Recycling,
SIAM Journal on Scientific and Statistical Computing,
Southern Journal of Applied Forestry,
Statistics and Probability Letters, Statistics in Medicine, Technometrics,
The American Statistician, The Forest Products Journal,
Wood and Fiber Science,
Society of Industrial and Applied
Mathematics,
Society of Wood Science
and Technology
Dr. James Evans, Statistics
Group Leader, USDA Forest Products Laboratory, Madison, Wisconsin
(abpi4v@r.postjobfree.com, 608-***-****)
Professor Richard A. Johnson, UW-Madison Department of Statistics, Madison,
Wisconsin (abpi4v@r.postjobfree.com, 608-***-****)
Dr. Mark Durst, Executive
Director, Information Systems, Systems Informatics Group, Amgen,
South San Francisco, California (abpi4v@r.postjobfree.com, 650-***-****)
Mr. Dave Kretschmann,
Research General Engineer, USDA Forest Products Laboratory, Madison,
Wisconsin (abpi4v@r.postjobfree.com, 608-***-****)
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