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Joanne Roth Wendelberger

Joanne Wendelberger

Phone (505) 665-4840


  • Computational Physics and Applied Mathematics
  • Mathematics
  • Algorithms
  • Agent-based applications
  • Statistics
  • Uncertainty quantification
  • Uncertainty analysis
  • Information Science and Technology
  • Uncertainty quantification (UQ)
  • Data Intensive Computing and Infrastructure
  • Latin hypercube sampling (LHS)
  • Visualization


Joanne Wendelberger has been a member of the Statistical Sciences Group at Los Alamos National Laboratory since 1992 and a Fellow of the American Statistical Association since 2005. She came to Los Alamos in 1992 as a Technical Staff Member, progressing to Project Leader, Deputy Group Leader, Group Leader, and Acting Deputy Division Leader prior to returning to fulltime technical work in her current position as a senior level Scientist.  She previously worked as a Statistical Consultant at the General Motors Research Laboratories. Throughout her career, Dr. Wendelberger’s research has been motivated by the need to develop solutions to complex interdisciplinary problems, with a growing focus on the interface between statistics and computer science.  Her current research interests include statistical experimental design and test planning, statistical bounding and uncertainty, materials degradation modeling, sampling and analysis in large-scale computation and visualization, probabilistic computing, and education modeling.  Recent publications have included work on algorithms for computer-generated experimental designs, uncertainty in designed experiments, variation in controlled experimental variables, randomized selection on the GPU, data sampling using bitmap indexing, power usage in production super computers, and in situ sampling of a large-scale particle simulation. 

Joanne's areas of expertise include:

Statistical Modeling and Analysis

Statistical Design and Analysis of Experiments

Error Analysis

Statistical Bounding

Uncertainty Quantification

Data Science at Scale

Data Visualization

Probabilistic Computing


Ph.D. in Statistics, University of Wisconsin-Madison

M.S. in Statistics, University of Wisconsin-Madison

B.A. in Mathematics and Economics, Oberlin College


LANL Positions

Scientist, Statistical Sciences Group (June 2016-Present)

Deputy Division Leader (Acting), Computer, Computational & Statistical Sciences Division (Feb-June, 2016)

Group Leader, Statistical Sciences Group (2010-Present)

Deputy Group Leader, Statistical Sciences Group, (2005-2010)

Project Leader, Statistical Sciences Group (1999-2004)

Technical Staff Member, Statistical Sciences Group (1992-1999)


Professional Societies

American Statistical Association, Fellow

American Society for Quality, Senior Member

The Institute of Mathematical Statistics

Society for Industrial and Applied Mathematics

Mathematical Association of America

International Statistical Engineering Association



William G. Hunter Award, Statistics Division, American Society for Quality

W. J. Youden Memorial Address Speaker, Fall Technical Conference

American Statistical Association Chapter Service Award

Fellow of the American Statistical Association

2 Los Alamos Achievement Awards

4 NNSA Defense Programs Awards of Excellence

Los Alamos Teamwork Award

2 Los Alamos Spot Awards

Los Alamos Award for Excellence in Industrial Partnerships

Wisconsin Alumni Research Foundation Fellowship

Phi Beta Kappa



Banesh, Wendelberger, Petersen, Ahrens, Hamann, “Change Point Detection for Ocean Eddy Analysis,” EnvirVis Workshop on Visualization in Environmental Sciences, Brno, Czech Republic, The Eurographics Assoication, http://dx.doi.org/10.2312/envirvis20181134

Wendelberger, J., Banesh, D., Wendelberger, L., Ahrens, J., “Detecting Changes in Simulations,” LA-UR-17-28747, Joint Statistical Meetings 2017 Proceedings.

Wendelberger, J., “Statistics: a World of Uncertainty,” In Their Own Words Article, LANL 1663 Magazine

Slechta, Ryan, Monroe, Laura, DeBardeleben, N., Guan, Qiang, Wendelberger, Joanne, Michalak, S., LA-UR-17-24710, “Resilience Analysis of Top K Selection Algorithms,” 13th European Dependable Computing Conference, 2017.

Wendelberger, Joanne R., “Scaling Up to Address Data Science Challenges,” Chance, 30, 2, 22-25, 2017.

Anderson-Cook, Christine M., Hamada, Michael S., Moore, Leslie M., Wendelberger, Joanne R., “Statistical Mentoring at Early Career Stages,” The American Statistician, 71, 6-14, 2017.

Wendelberger, Joanne R., “Understanding Today’s Complex World,” LA-UR-29501, W. J. Youden Memorial Address presented at Fall Technical Conference, Minneapolis, MN, October 6-7, 2016, Statistics Digest, American Society for Quality Statistics Division, February 2017.

Myers, Kary, Lawrence, Earl, Fugate, Michael, Bowen, Claire, Ticknor, Lawrence, Woodring, Jonathon, Wendelberger, Joanne, and Ahrens, James, “Partitioning a Large Simulation as It Runs,” Technometrics, 58, 3, 2016. DOI 10.1080/00401706.2016.1158740.

Anderson-Cook, Christine M., Hamada, Michael S., Moore, Leslie M., Wendelberger, Joanne R., “Statistical Mentoring at Early Career Stages,” accepted for publication, The American Statistician, 2016.

Pakin, Scott, Storlie, Curtis, Lang, Michael, Fields, Robert E. III, Romero, Eloy E. Jr., Idler, Craig, Michalak, Sarah, Greenberg, Hugh, Loncaric, Josip, Rheinheimer, Randal, Grider, Gary, Wendelberger, Joanne, “Power Usage of Production Supercomputers and Production Workloads,” Concurrency and Computation:  Practice and Experience, vol. 28, no. 2, Feb. 2016, pp. 274–290. DOI:10.1002/cpe.3191.

R. Whitaker et al, Workshop on Quantification, Communication, and Interpretation of Uncertainty in Simulation and Data Science, Computing Community Consortium, 2015.

Samsel, F., Petersen, M., Geld, T., Abram, G., Wendelberger, J., Ahrens, J., “Colormaps that Improve Perception of High-Resolution Ocean Data,” CHI 2015 Crossings, April 18-23, Seoul, Korea, 2015.

Wendelberger, J., “Variation in Controlled Experimental Variables,” Quality Technology and Quantitative Management, 12, 1, 29-40, 2015.

Lekivetz, R., Sitter, R., Bingham, D., Hamada, M. S., Moore, L. M., Wendelberger, J. R., “On Algorithms for Obtaining Orthogonal and Near-Orthogonal Arrays for Main Effects Screening,” Journal of Quality Technology, 47, 1, 2-13, 2015.

Wendelberger, J., Wilson, A., Stinnett, S., and Gaydos, B., "Working in Interdisciplinary Teams," Chance, 27, 4, 31-33, 2014.

Su, Yu, Agrawal, G., Woodring, J., Myers, K., Wendelberger, J., Ahrens, J., “Effective and Efficient Data Sampling Using Bitmap Indices,” Cluster Computing, DOI 10.1007/s10586-014-0360-5, 2014.

Vardeman, S., Hamada, M., Burr, T., Morris, M., Wendelberger, J., Jobe, J., Moore, L., Wu, H., “An Introduction to Statistical Issues and Methods in Metrology for Physical Science and Engineering,” J. of Quality Technology, Vol. 46 No. 1, 2014.

Su, Yu, Agrawal, Gagan, Woodring, Jonathan, Myers, Kary, Wendelberger, Joanne, Ahrens, James, "Taming massive distributed datasets: Data sampling using bitmap indices," HPDC 2013 - Proceedings of the 22nd ACM International Symposium on High-Performance Parallel and Distributed Computing, p.13-24, 2013.

Weaver, Brian P., Meeker, William Q., Escobar, Luis A., Wendelberger, Joanne, "Methods for planning repeated measures degradation studies," Technometrics, Vol.55, iss.2, p.122-134, 2013.

Leyva, Norma, Page, Garritt L., Vardeman, Stephen B., Wendelberger, Joanne R., "Bayes statistical analyses for particle sieving studies," Technometrics, Vol.55, iss.2, p.224-231, 2013.

Monroe, L., Wendelberger, J., Michalak, S., "Randomized selection on the GPU," Proceedings - HPG 2011: ACM SIGGRAPH Symposium on High Performance Graphics, p.89-98, 2011.

Woodring, J.,  Ahrens, J., Figg, J., Wendelberger, J., Habib, S., Heitmann, K., "In-situ Sampling of a Large-Scale Particle Simulation for Interactive Visualization and Analysis," COMPUTER GRAPHICS FORUM, Vol.30, iss.3, p.1151-1160, 2011.

Wendelberger, J.R., "Uncertainty in designed experiments," Quality Engineering, Vol.22, iss.2, p.88-102, April 2010.

Vardeman, S. B., Wendelberger, J. R., Burr, T., Hamada, M. S., Moore, L. M., Jobe, J. M., Morris, M. D., Wu, H. Q., "Elementary Statistical Methods and Measurement Error," American Statistician, Vol.64, iss.1, p.46-51, 2010.

Wendelberger, J.R., Moore, L.M., Hamada, M.S., "Making tradeoffs in designing scientific experiments: A case study with multi-level factors," Quality Engineering, Vol.21, iss.2, p.143-155, 2009.

Vardeman, S., Wendelberger, J., Wang, L., “Calibration, Error Analysis, and Ongoing Measurement Process Monitoring for Mass Spectrometry,” Quality Engineering, Vol. 18 No. 2, 2006.

Vardeman, Stephen, Wendelberger, Joanne, “The Expected Sample Variance of Uncorrelated Random Variables With a Common Mean and an Application in Unbalanced Random Effects Models,” Journal of Statistical Education, Vol. 13, No. 1, March, 2005.

Hamada, Michael, Johnson, Valen, Moore, Leslie, Wendelberger, Joanne, “Bayesian Prediction Intervals and their Relationship to Tolerance Intervals,” Technometrics, Vol. 46, 4, 452-459, 2004.

Hamada, M., Pohl, A., Spiegelman, C., Wendelberger, J., “A Bayesian Approach to Calibration Intervals and Properly Calibrated Tolerance Intervals,” Journal of Quality Technology, Vol. 35, No. 2, April 2003.

Mulford, R. N., Brown, W., Huntley, T., Wendelberger, J., (1999), “A Survey of Plutonium Characteristics as a Function of Age:  The ARIES Sampling Program,” in Ageing Studies and Lifetime Extension of Materials, Proceedings of the First International Conference on Ageing Studies and Lifetime Extension of Materials, ed. By Leslie G. Mallinson, Oxford, United Kingdom, July 12-14, 1999.

Wendelberger, Joanne R., “Using Tolerance Bounds in Scientific Investigations,” Proceedings of the 1996 American Statistical Association Meeting, Section on Physical and Engineering Sciences, 1996.

Wendelberger, Joanne R., Gilbert, Richard O., “Nondetects: Planning and Statistical Analysis to Mitigate their Effects,” Department of Energy DQO Statistics Bulletin, Vol. 1, No. 2, Pacific Northwest National Laboratory, 1995.

Wendelberger, Joanne R., “Methods for Handling Values Below Detection Limits,” LA-UR-95-3502, Proceedings of the 1995 American Statistical Association Meeting, Section on Statistics and the Environment, 1995.

Wendelberger, Joanne R., McVittie, Thomas I., “Data Management and Statistical Analysis for Environmental Assessment,” invited paper, Proceedings of Interface 95, 27th Symposium on the Interface of Computing Science and Statistics, 1995.

Wendelberger, Joanne R., Beckman, Richard J., invited discussion of “The Use of Conditional Simulation in Nuclear Waste Site Performance Assessment,” by Carol Gotway, Technometrics, Vol. 36, 2, 144-147, 1994.

Wendelberger, Joanne R., Review of Statistics and Society, Data Collection and Interpretation, by Walter T. Federer, Technometrics, Vol. 36, 3, 329-330, 1994.

Wendelberger, Joanne R., Review of Adventures in Stochastic Processes, by Sidney Resnick, Technometrics, Vol. 35, 4, 461, 1993.

Wendelberger, Joanne R., “Efficiency Effects of Variation in Controlled Experimental Variables,” Proceedings of the 1993 American Statistical Association Meeting, Section on Physical and Engineering Sciences, held in San Francisco, CA, American Statistical Association, Alexandria, VA, 1993.

Wendelberger, Joanne, Box, George, “Identification and Estimation of Sources of Transmitted Variation,” Proceedings of the 1992 American Statistical Association Meeting, Section on Physical and Engineering Sciences, held in Boston, MA, 1-76, American Statistical Association, Alexandria, Virginia, 1992.

Wendelberger, Joanne R., “Using SAS Software in the Design and Analysis of Two-Level Fractional Factorial Experiments,” Proceedings of the 1986 SAS Users Group International Conference, 1986.