Expert en science des données, Professeur Doray a développé et utilisé des méthodes analytiques avancées pour résoudre des problèmes pour les institutions financières et en assurance. Membre Associé de la Society of Actuaries, il a agi comme consultant pour les banques, les organisations actuarielles et les compagnies d'assurance sur plusieurs projets analytiques de prédiction, par exemple la projection de taux de mortalité, la survie aux âges avancés, la modélisation de la durée de l'invalidité et la prédiction de réserves.

• Ye, Z. and Doray, L.G. (2016). VaR and Low-Interest Rates, Technical Report, Centre de Recherches Mathématiques.
• Doray, L.G. and Najem, E. (2016). Efficiency of Some Estimators for a Generalized Poisson Autoregressive Process of Order 1, Open Journal of Statistics, 6, 637-650. doi: 10.4236/ojs.2016.64054.
• Groparu-Cojocaru, I. and Doray, L.G. (2013). Inference for the Generalized Normal Laplace Distribution, Communications in Statistics: Simulation and Computation, 42, 1989-1997.
• Augustyniak, M. and Doray, L.G. (2012). Inference for a Leptokurtic Symmetric Family of Distributions Represented by the Difference of two Gamma Variates, Journal of Statistical Computation and Simulation, 82, 1621-1634.
• Doray, L.G. and Tang, K.O. (2011). Projection of mortality rates at advanced ages in Canada with a new Lee-Carter type model, International Symposium on Liv ing to 100, SOA Monograph M-LI11-1, 40p.
• Doray, L.G., Jiang, S.M. and Luong, A. (2009). Some simple method of estimation for the parameters of the discrete stable distribution with the probability generating function, Communications in Statistics: Simulation and Computation, 38, 2004-2017.
• Luong A. and Doray, L.G. (2009). Inference for the Positive Stable Laws Based on a Special Quadratic Distance, Statistical Methodology, 6, 147-156.
• Luong, A. and Doray, L.G. (2002). General Quadratic Distance Methods for Discrete Distributions Definable Recursively, Insurance: Mathematics and Economics, 30, 255-267.
• Doray, L.G. and Luong, A. (1997). Efficient estimators for the Good family, Communications in Statistics: Simulation and Computation, 26, 1075-1088.
• Doray, L.G. (1996). Constrained Forecasting of the Number of IBNR Claims, Journal of Actuarial Practice, 4, 287-305.
• Coene G. and Doray, L.G. (1996). A Financially Balanced Bonus-Malus System, Astin Bulletin, 26, 107-116.
• Doray, L.G. (1996). UMVUE of the IBNR Reserve in a Lognormal Linear Regression Model, Insurance: Mathematics and Economics, 18, 43-57.