深圳大学微众银行金融科技学院/深圳南特金融科技学院助理教授。拥有Bogazici University工业工程博士学位,专业为金融工程。研究和教学涵盖机器学习、实证资产定价、风险管理和蒙特卡罗模拟。
Sak, H., Huang, T., Chng, M. T., Exploring the factor zoo with a machine-learning portfolio. International Review of Financial Analysis, 96, 103599, 2024 (ABS3)
I. Başoglu, W. Hoermann, and H. Sak, “Efficient Simulations for a Bernoulli Mixture Model of Portfolio
Credit Risk,” Annals of Operations Research, 260 (1-2), 113-128, 2018 (ABS3)
Q. Wu, H. Sak, S. Seshadri, C. Haksoz, “Optimization Under Supplier Portfolio Risk Considering Breach of
Contract and Market Risks,” Risk and Decision Analysis, 7 (3-4), 77-89, 2018
H. Sak and I. Basoglu, “Efficient Randomized Quasi-Monte Carlo Methods for Portfolio Market Risk,”
Insurance: Mathematics and Economics, 76, 87-94, 2017 (ABS3)
Sak, H., Yang, G., Li, B., Li, W., "A copula-based model for air pollution portfolio risk and its efficient simulation," Stochastic Environmental Research and Risk Assessment, 31, 2607–2616, 2017
K. D. Dingeç, H. Sak, W. Hoermann, “Variance Reduction for Asian Options under a General Model
Framework,” Review of Finance, 19 (2), 907-949, 2015 (FT50, ABS4)
I. Basoglu, W. Hoermann, H. Sak, “Optimally Stratified Importance Sampling for Portfolio Risk with
Multiple Loss Thresholds,” Optimization, 62 (11), 1451-1471, 2013 (ABS1)
H. Sak, W. Hoermann, “Fast Simulations in Credit Risk,” Quantitative Finance, 12 (10), 1557-1569,
2012 (ABS3)
H. Sak, Ç. Haksoz, “A Copula-Based Simulation Model for Supply Portfolio Risk,” The Journal of
Operational Risk, 6, 15-38, 2011 (ABS2)
W. Hoermann, H. Sak, “t-Copula Generation for Control Variates,” Mathematics and
Computers in Simulation, 81, 782-790, 2010
H. Sak, W. Hoermann, J. Leydold, “Efficient Risk simulations for Linear Asset Portfolios in the
t-Copula Model,” European Journal of Operational Research, 202, 802-809,2010 (ABS4)
H. Sak, W. Hörmann, J. Leydold, “Better Confidence Intervals for Importance Sampling,”
International Journal of Theoretical and Applied Finance, 13, 1279-1291, 2010 (ABS2)
H. Sak, “Increasing the Number of Inner Replications of Multifactor Portfolio Credit Risk Simulation
in the t-Copula Model,” Monte Carlo Methods and Applications, 16 (3-4), 361-377, 2010
G. Derflinger, W. Hoermann, J. Leydold, H. Sak, “Efficient Numerical Inversion for Financial
Simulations,” In: Monte Carlo and Quasi-Monte Carlo methods 2008, Pierre L'Ecuyer and Art B. Owen
Eds., Berlin Heidelberg: Springer-Verlag, 2009, pp. 297-304 (Book chapter)
H. Sak, S. Ozekici, I. Boduroglu, “Parallel computing in Asian option pricing,” Parallel
Computing, 33, 92-108, 2007