I have done research on stochastic models such as time series, Markov chains and point processes and their applications in psychology and ecology. Recently, I have become involved with a network of statisticians, mathematicians and forestry researchers who are studying forest fires and ecology.
Publications Book Reviews Graduate Supervison Graduate Thesis Examinations
Publications
- Zhou, L. and Braun, W.J. Fun with the grid Package. Accepted by Journal of Statistics Education.
- Woolford, D.G., Bellhouse, D.R., Braun, W.J., Dean, C.B., Martell, D.L., and Sun, J. A Spatio-temporal model for people-caused forest fire occurrence in the Romeo Malette Forest. To appear in J. Environmental Statistics.
- Braun, W.J., Jones, B., Lee, J., Woolford, D.G., and Wotton, B. (2010) Forest Fire Risk Assessment in Muskoka, Ontario. Journal of Probability and Statistics http://www.hindawi.com/journals/jps/2010/823018.html.
- Kang, X., Braun, W.J. and Stafford, J.E. Local Regression when the Responses are Interval-Censored. To appear in Journal of Statistical Computation and Simulation.
- Wan, V., Braun, W.J., Dean, C.B. and Henderson, S. A comparison of classification algorithms for the identification of smoke plumes from satellite images. To appear in GEOMED.
- Barber, J., Bose, C., Bourlioux, A., Braun, J., Brunelle, E., Garcia, T., Hillen, T. and Ong, B. Burning issues with PROMETHEUS–the Canadian wildland fire growth simulation model. To appear in Canadian Applied Mathematics Quarterly.
- Woolford, D.G., Braun, W.J., Dean, C.B. and Martell, D.L. Site-specific seasonal baselines for fire risk in Ontario. To appear in Geomatica.
- Davies, K. and Braun, W.J. (2010) A two-dimensional Markov renewal process. doi: 10.1002/env.1049 Environmetrics.
- Asimit, J.L., Braun, W.J., and Simpson, W.A. On a threshold model for estimating response bias and its application to choice reaction time data. To appear in Advances and Applications in Statistics.
- Zhou, L., Braun, W.J., Woolford, D.G., and Wotton, B.M. A simulation study of predicting flush date. Communications in Statistics – Simulation and Computation, 38 1071–1082, 2009.
- Boychuk D, Braun W, Kulperger R, Krougly Z, Stanford D. A stochastic forest fire growth model. Environmental and Ecological Statistics Available from: http://dx.doi.org/10.1007/s10651-007-0079-z, 2008.
- Garcia, T., Braun, W.J., Bryce, R. and Tymstra, C. Smoothing and bootstrapping the PROMETHEUS Fire Spread Model. Environmetrics, 19 836–848, 2008.
- Braun, W.J. and Park, D. Estimation of sigma for individuals charts. Journal of Quality Technology 40, 332–344, 2008.
- Braun, W.J. and Zhou, L. One-sided tolerance limits via smoothing. Quality Technology and Quantitative Management, 5, 375–391, 2008.
- Braun, W.J., Li, W. and Zhao, Y.Q. Some theoretical properties of the geometric and α-series processes. Communications in Statistics–Theory and Methods 37 1483–1496, 2008.
- Boychuk, D., Braun, W.J., Kulperger, R.J., Krougly, Z., and Stanford, D. A stochastic model for forest fire growth. INFOR, Special Issue on Forestry 45: 9-16, 2007.
- Woolford, D.G. and Braun, W.J. Convergent data sharpening for the identification and tracking of spatial-temporal centers of lightning activity. Environmetrics 18 461–479, 2007.
- Kavaliers, M., Choleris, E., Agmo, A. Braun, W.J., Colwell, D.D., Muglia, L.J., Ogawa, S., and Pfaff, D.W. Inadvertent social information and the avoidance of parasitized male mice: A role for oxytocin. Proceedings of the National Academy of Science 103 4293–4298, 2006.
- Braun, W.J., Li, W. and Zhao, Y.Q. Properties of the geometric and related processes. Naval Research Logistics, 52 602–616, 2005.
- Asimit, J. and Braun, W.J. Third order point process intensity estimation for reaction time experiment data. Can. J. Statist. 33 243–257, 2005.
- Braun, J., Duchesne, T. and Stanford, J.E. Local likelihood density estimation for interval censored data. Can. J. Statist. 33 39–60, 2005.
- Braun, W.J. and Huang, L.-S. Kernel spline regression Can. J. Statist. 33 259–278, 2005.
- Braun, W.J., Rousson, V., Simpson, W.A. and Prokop, J. Parametric modelling of reaction time experiment data. Biometrics, 59 661-669, 2003.
- Braun, W.J. The LR-chart: An Alternative to the MR-chart. Quality Engineering. 16: 87–92, 2003.
- Zhao, Y.Q., Li, W. and Braun, W.J., Censoring, factorizations, and spectral analysis for transition matrices with block-repeating entries. Methodology and Computing in Applied Probability, 5: 35–58, 2003.
- Braun, W.J. and Kulperger, R.J., Re-colouring the Intensity-Based Bootstrap for Point Processes. Communications in Statistics – Simulation and Computation 32: 475–488, 2003.
- Kavaliers, M., Colwell, D.D., Braun, W.J., and Choleris, E., Brief exposure to the odor of a parasitized male alters the subsequent mate odor preferences of female mice. Animal Behaviour. 65: 59–68, 2003.
- Braun, W.J. and Kulperger, R.J., Estimating Parameters in a Tumour Growth Interacting Particle System: Continuity of Moments. Pakistan Journal of Statistics, S.E. Ahmed Special Issue, 18:149–164, 2002.
- Braun, W.J. and Hall, P. Data sharpening for nonparametric inference subject to constraints. Journal of Computational and Graphical Statistics. 10: 786–806, 2001.
- Ahmed, S.E. and Braun, W.J. Testing the homogeneity of tumour growth rates in several models. Stochastic Modelling and Applications. 3: 11–22, 2000.
- Simpson, W.A., Braun, W.J., Bargen, C., and Newman, A.J., A new approach to visual simple reaction time using point processes. Journal of Experimental Psychology: Human Perception and Performance. 26: 1675–1690, 2000
- Braun, W.J. and Rousson, V., An autocorrelation criterion for bandwidth selection in nonparametric regression. Journal of Statistical Computation and Simulation 68: 89–101, 2000.
- Braun, W.J., Replacing a ‘striped-box’ with the normal approximation. Journal of Statistics Education. v. 8 (electronic, 81K), 2000.
- Deng, Y., Braun, W.J., and Zhao, Y.Q.,M/M/1 queueing system with delayed controlled vacation. Operations Research Transactions. 3:17-30, 1999.
- Braun, W.J. Run-length distributions for estimated attributes charts. Metrika 50: 121-129, 1999.
- Zhao, Y.Q., Braun, W.J. and Li, W., Northwest corner and banded matrix approximations to a Markov chain. Naval Research Logistics 46 187-197, 1999.
- Li, W., Braun, W.J. and Zhao, Y.Q., Stochastic scheduling on a repairable machine with Erlang uptime distribution. Advances in Applied Probability 30: 1073-1088, 1998.
- Zhao, Y.Q., Li, W. and Braun, W.J., Infinite block-structured transition matrices and their properties. Advances in Applied Probability. 30: 365-384, 1998.
- Braun, W.J. and Kulperger, R.J., A bootstrap for point processes. Journal of Statistical Computation and Simulation. 60: 129-155, 1998.
- Braun, W.J. and Kulperger, R.J., Properties of a Fourier bootstrap method for time series. Communications in Statistics A. 26: 1329-1337, 1997.
- Zhao, Y.Q., Li, W. and Braun, W.J., On a decomposition for infinite transition matrices. Queueing Systems. 27:127–130, 1997.
- Braun, W.J. An illustration of bootstrapping using video lottery terminal data. Journal of Statistics Education. v. 3 (electronic, 18K), 1995.
- Braun, W.J. and Kulperger, R.J. Data analytic implementation of an interacting particle system model for tumor growth. Pakistan Journal of Statistics. 11: 123-136, 1995.
- Braun, W.J. and Kulperger, R.J. Differential equations for moments of an interacting particle process on a lattice. Journal of Mathematical Biology v. 31 199–214, 1993.
- Braun, W.J. and Kulperger, R.J. Interacting particle systems as cell growth models: Can they be identified? The Western Journal of Graduate Research 3 106-115, 1991.
Book Reviews
- Braun, W.J. Review of Statistics in the Law (by Joseph Kadane, Oxford University Press), Law, Probability and Risk. 2009.
- Braun, W.J. and Yu, H. Review of Weighing the Odds (by David
Williams, Cambridge University Press), SIGSAM Bulletin of the ACM. 2002.
Graduate Supervison
Master's Projects
- Helen Huang (jointly supervised by R. Kulperger) “Statistical Modelling of Aberrant Crypt Foci”, 2000-01.
- Larraine Becker (jointly supervised by D. Bellhouse) “Estimation of Molecular Relative Frequency in ICS Images”, 2001-02.
- Jennifer Prokop “Application of a Third-Order Intensity Function to the Analysis of Reaction Time Data”, 2001-02.
- Cecilia Wong “Bootstrapping Long-Memory Processes”, 2003-04.
- Diana Asimit “On the Modelling of Preneoplastic Lesions in Rat Colons with Birth and Death Processes”, 2003-04.
- Aniela Moisei (collaborative program in Biostatistics; jointly supervised with Reg Kulperger) ”Estimating Parameters for an Interacting Particle System”, 2003-04.
- Tingting Gou (jointly supervised with Matt Davison), “Statistical and Mathematical Analysis of TSE Time Series”, 2003-05.
- Linan Xu (jointly supervised with Wenqing He), “Investigating Treatment Program for Patients with Severe Mental Illness”, 2005-2006.
- Hong Zheng, “Bandwidth Selection for Interval Censored Data”, 2005-2006.
- Yang Yang, “On the Analysis of Female Mice Preference and Tolerance Data”, 2006.
- Tanya Garcia (jointly supervised with R. Kulperger), “Improving the Prometheus model through smoothing”, 2005-2006.
- Lutong Zhou, “Better nonparametric one-sided tolerance limits”, 2006-2007.
- Jialin Sun (jointly supervised with D. Bellhouse), “Human-Caused Fires in The Romeo Malette Forest”, 2006-2007.
- Jonathan Lee “Forest Fire Risk Assessment in Muskoka, Ontario”, 2008-2009. (jointly supervised with D. Woolford)
- Victoria Wan, “Smoke Plume Estimation from Satellite Images”, 2008-2009. (jointly supervised with C. Dean)
- Kai Kang, “Sensitivity Analysis for Financial Time
Series”, 2010-2011.
- Ka Ying Liu, “Triangular Data Analysis for Mice Maze Experiments”, 2010-2011. (jointly supervised with J. de Tibeiro)
- Li Geng, "Loss Estimation in the Muskoka", 2010-2012.
- Ge Jing, "Loss Estimation in the Muskoka", 2010-2012.
Doctoral Theses
- Jennifer Asimit “Analysis of Reaction Time Experiment Data using Point Process Techniques”, 2002-2006.
- Katherine Davies “Investigating a 2D Renewal Process”, 2004-2008.
- Xiuli Kang, “Constrained and Interval-Censored Kernel Regression”, 2007-2009.
- Mark Wolters , “Density Estimation Subject to Qualitative Constraints”, 2008-present.
- Lengyi Han “Randomizing the Deterministic Fire Spread Model PROMETHEUS”, 2009-present.
- Kevin Ma "Wind-Driven Fire-Spotting", 2010-present.
Graduate Thesis Examinations
- External examiner for Candemir Cigsar, Ph.D. Statistics and Actuarial Science, University of Waterloo, September, 2010. Supervisor: Jerry Lawless.
- External examiner for Lihui Zhao, Ph.D. Statistics and Actuarial Science, Simon Fraser University, September, 2009. Supervisor: Joan Hu.
- University examiner for Adrian Estrada, Ph.D. Civil and Environmental Engineering, August, 2009. Supervisor: Hanping Hong.
- University examiner for Sudhan Banik, Ph.D. Civil and Environmental Engineering, September, 2008. Supervisor: Greg Kopp.
- External examiner for David Tolusso, Ph.D. Statistics and Actuarial Science, University of Waterloo, August, 2008. Supervisor: Richard Cook.
- External examiner for Alberto Carabarin Aguirre, Ph.D. Mathematics and Statistics, University of Ottawa, June, 2008. Supervisor: Gail Ivanoff.
- University examiner for Tyler Hayes, Ph.D. Earth Sciences, January, 2008. Supervisor: Kristy Tiampo.
- External examiner for T. Koulis, Ph.D. Statistics and Actuarial Science, University of Waterloo, May, 2005. Supervisor: Mary Thompson.
- Departmental examiner for Y. Tsai, Ph.D., Department of Statistical and Actuarial Sciences, U.W.O., 2006. Supervisor: Duncan Murdoch.
- Departmental examiner for W. Horn, Ph.D., Department of Statistical and Actuarial Sciences, U.W.O., 2004. Supervisor: David Stanford.
- Departmental examiner for X. Zhang, Ph.D., Department of Statistical and Actuarial Sciences, U.W.O., 2004. Supervisor: Duncan Murdoch.
- Extra-departmental examiner for M.Sc., M. Couillard, Applied Mathematics, University of Western Ontario, 2003. Supervisor: Matt Davison.
- Departmental examiner for X. Li, Ph.D., Department of Statistical and Actuarial Sciences, U.W.O., 2002. Supervisor: Duncan Murdoch.
- Member of Advisory committee for L. Cheung, Ph.D., Statistics, University of Manitoba, 1998–2002. Supervisor: John Brewster.
- Extra-departmental examiner for C. Hulet, M.E.Sc., Chemical Engineering, University of Western Ontario, 2002. Supervisor: C. Briens.
- Extra-departmental examiner for M.Sc., H. Mannan, Epidemiology and Biostatistics, University of Western Ontario, 2001.
- External examiner for A. Nikulin, Ph. D., Computer and Electrical Engineering, University of Manitoba, 1998.
- External examiner for P. Jilkine, Ph. D., Computer and Electrical Engineering, University of Manitoba, 1997.