Associate Professor
Biography
Alex Leblanc joined the Dept. of Statistics in July 2003. Before coming to Winnipeg, he did all of his studies at the Université de Montréal, in the Département de Mathématiques et de Statistique, where he obtained his Ph.D. in Statistics in the fall of 2002. He worked under the supervision of J.-F. Angers, which makes him an academic grandson of James O. Berger. His thesis focused on the use of wavelets in Bayesian calculation and empirical Bayes estimation.
Alex was an un-tenured Assistant Professor from July 2003 to March 2010. He was promoted to Associate Professor on March 30, 2010 and tenured on July 1 of the same year.
Office Hours for the Summer 2018:
I'm usually in the office every day, but it is best to make an appointment if you want to make sure you don't come up against a closed door!
Research Interests
complex analytics,
nonparametric function estimation,
semi-parametric methods in regression,
inference from sparse multinomial data,
asymptotics,
Bayesian methods,
computational statistics,
decision theory,
copulas,
robustness,
Depth related methods
Recent Publications
- Jafari Jozani, M., Leblanc, A. and Marchand, É.
(2014).
On continuous distribution functions, minimax and best invariant estimators, and integrated balanced loss functions.
Canadian Journal of Statistics 42
(3),
470–486.
- Desgagné, A., Lafaye De Micheaux, P. and Leblanc, A.
(2013).
Test of normality against generalized exponential power alternatives.
Communications in Statistics – Theory and Methods 42
(1),
164–190.
- Durocher, S., Leblanc, A., Morrison, J. and Skala, M.
(2013).
Robust nonparametric simplification of polygonal chains.
International Journal of Computational Geometry and Applications 23
(6),
427–441.
- Durocher, S., Leblanc, A., Morrison, J. and Skala, M.
(2012).
Robust Nonparametric Data Approximation of Point Sets via Data Reduction.
In Proceedings of the Twenty-Third International Symposium on Algorithms and Computation (ISAAC 2012)
pp. 319-331.
Springer,
- Leblanc, A.
(2012).
On estimating distribution functions using Bernstein polynomials.
Annals of the Institute of Statistical Mathematics 64
(5),
919–943.
→ See more publications
Potential Graduate Students
I am currently looking for one or two highly motivated and qualified graduate students interested in pursuing a M.Sc. or Ph.D. degree under my supervision on a thesis topic related to my research interests.
Interested students should contact me by email. Your email should include:
- confirmation that you have read this web page,
- a brief descriptions of topics or specific research problems in Statistics that interest you,
- an overview of any research experience you have,
- your curriculum vitae,
- your grade point average and, if available, an electronic (or scanned) copy of your transcripts.
You might not get a reply if you do not follow the above guidelines.
Please visit the Graduate Programs section of the Department of Statistics website for more information on application procedures and funding opportunities.
Implication within CANSSI/INCASS
Alex is currently serving as one of the founding associate directors of CANSSI, the Canadian Statistical Sciences Institute (INCASS, Institut Canadien des
sciences statistiques).
Implication within the Statistical Society of Canada
- Member of the Bilingualism Committe (2004-7)
- Member of the Travel Awards Committee (2006-7)
- Elected member of the Board of Directors representing Manitoba,
Saskatchewan, Nunavut and the Northwest Territories (2009-11 and
2013-15)
- Member of the Research Committee (2011-14)
- Member of the Program and Meetings Committee (2011-14 and 2015-18)
- Scientific Program Chair for the 2012 Annual Meeting in Guelph
- Chair of the Local Arrangements Committee for the 2017 Annual Meeting held at the University of Manitoba
Graduate Student Supervision
- Kelly Ramsay, M.Sc. in Statistics, co-advisor: S. Durocher (current).
- Lahiru Wickramasinghe, Ph.D. in Statistics, co-advisor:
S. Muthukumarana (current).
- Casandra Dolovich, M.Sc. in Statistics (2014).
- Mark Stinner, M.Sc. in Statistics (2013).
- Mingming Hu, M.Sc. in Statistics, co-advisor: A. Thavaneswaran
(2010).
- Phongsack Manivong, M.Sc. in Statistics (2009).
- Say Pham Hong, M.Sc. in Statistics (2007).
Supervision of Post-Doctoral Fellow
- Matthew Skala, co-advisor: S. Durocher, Dept. of Computer Science (2012-14).
Conference Presentations (since 2010)
- Leblanc, A. (2015). Local polynomial regression: a Bernstein polynomial
perspective. SSC Annual Meeting, Halifax, June 2015.
- Belalia, M. [speaker], Bouezmarni, T. & Leblanc, A. (2015). Bernstein
conditional density estimation with application to conditional distribution
and regression functions. SSC Annual Meeting, Halifax, June 2015.
- Durocher, S., Fraser, R., Leblanc, A., Morrison, J. & Skala, M. [speaker]
(2014). On combinatorial depth measures. 26th Canadian Conference on
Computational Geometry (CCCG 2014), Halifax, August 2014.
- Belalia, M. [speaker], Bouezmarni, T. & Leblanc, A. (2014). Bernstein
polynomials for estimating a conditional distribution function. SSC
Annual Meeting, Toronto, May 2014.
- Durocher, S., Fraser, R., Leblanc, A. [speaker], Morrison, J. & Skala, M.
(2014). On the probability of being interior to a random subset of a
sample. SSC Annual Meeting, Toronto, May 2014.
- Leblanc, A. (2013). Boundary properties of Bernstein polynomial
estimators of density and distribution functions. Workshop on
Nonparametric Curve Smoothing, Concordia University, Montréal,
December 2013.
- Durocher, S., Leblanc, A. [speaker] & Skala, M. (2013). The projection
median: a multivariate robust adaptive weighted average. SSC Annual
Meeting, Edmonton, May 2013.
- Durocher, S., Leblanc, A. [speaker] & Skala, M. (2013). The
projection median and its connection to multivariate ranks,
medians and depth-weighted averages. International Workshop on Perspectives
on High Dimensional Data Analysis III, University of British Columbia,
Vancouver, May 2013.
- Durocher, S., Leblanc, A., Morrison, J. [speaker] & Skala, M. (2012).
Robust nonparametric data approximation of point sets via data reduction.
23rd International Symposium on Algorithms and Computation (ISAAC 2012),
Taiwan, December 2012.
- Leblanc, A. (2012). Decision theoretic issues in estimating smooth
distribution functions under integrated squared error loss.
International Workshop on New Advances in Statistics, Winnipeg, July
2012.
- Jafari Jozani, M., Leblanc, A. & Marchand, E. [speaker] (2011). On estimating
a cumulative distribution function with a balanced loss function.
SSC Annual Meeting, Wolfville, June 2011.
- Leblanc, A. (2010). On the boundary effects of Bernstein
polynomial estimators of density and distribution functions.
Conference on Nonparametric Statistics and Statistical Learning,
The Ohio State University, Columbus, Ohio, May 2010.
- Leblanc, A. (2010). On the boundary effects of Bernstein
polynomial estimators of density and distribution functions. SSC
Annual Meeting, Québec, May 2010.
- Leblanc, A. [speaker] & Jafari Jozani, M. (2010). Minimax
invariant estimation of continuous distribution functions. Fourth
Annual PNRMS Meeting, Winnipeg, May 2010.
Seminar Presentations (since 2010)
- Durocher, S., Fraser, R., Leblanc, A. [speaker], Morrison, J. & Skala, M.
(2015). On the probability of being interior to a random subset of a
sample and a link to data depth. Statistics Seminar, University of Manitoba,
April 2015.
- Durocher, S., Leblanc, A. [speaker] & Skala, M. (2014). The projection
median and its connection to multivariate ranks, medians and depth-weighted
averages. Statistics Seminar, Simon Fraser University, November 2014.
- Durocher, S., Leblanc, A. [speaker] & Skala, M. (2014). La médiane
projective: une moyenne pondérée multivariée adaptative robuste. Statistics
Seminar, Université de Sherbrooke, October 2014.
- Durocher, S., Leblanc, A. [speaker] & Skala, M. (2014). The projection
median and its connection to multivariate ranks, medians and depth-weighted
averages. Statistics Seminar, University of Victoria, February 2014.
- Durocher, S., Leblanc, A. [speaker] & Skala, M. (2013). The projection
median and its connection to multivariate ranks, medians and depth-weighted
averages. Computer Science Seminar, University of Manitoba, April 2013.
- Durocher, S., Leblanc, A. [speaker] & Skala, M. (2012). The projection
median and its connection to multivariate ranks, medians and depth-weighted
averages. Statistics Seminar, University of Manitoba, November 2012.
- Durocher, S., Leblanc, A., Morrison, J. [speaker] & Skala, M. (2012).
Robust non-parametric data approximation of pointsets via data reduction.
Algorithms and Complexity seminar, University of Waterloo, June 2012.
- Durocher, S., Leblanc, A., Morrison, J. [speaker] & Skala, M. (2012).
Robust non-parametric data approximation of pointsets via data reduction.
Algorithms seminar, Carleton University, May 2012.
- Leblanc, A. (2011). Asymptotic deficiency and inadmissibility of empirical
distribution functions. Electrical and Computer Engineering seminar,
University of Manitoba, November 2011.
- Leblanc, A. (2011). Weierstrass, Bernstein, Kantorovitch and nonparametric
statistical function estimation. Statistics seminar, University of Toronto,
January 2011.
- Leblanc, A. (2010). Weierstrass, Bernstein, Kantorovitch and nonparametric
statistical function estimation. Statistics seminar, University of Western
Ontario, November 2010.
- Leblanc, A. [speaker] & Jafari Jozani, M. (2010). Minimax
invariant estimation of continuous distribution functions.
Statistics seminar, University of Manitoba, April 2010.