Inventory Systems

1. Wai-Ki Ching, Eric S. Fung, Michael K. Ng, Tak-Kuen Siu and W.K. Li (2006). Interactive Hidden Markov Models and Their Applications, IMA Journal of Management Mathematics, 18, 85-97.  

2. Wai-Ki Ching, Eric S. Fung and Michael K. Ng (2003). A Higher-order Markov Model for the Newsboy's Problem, Journal of Operational Research Society, 54, 291-298.

3. Wai-Ki Ching, Eric S. Fung and Michael K. Ng (2002). A Multivariate Markov Chain Model for Categorical Data Sequences and Its Applications in Demand Prediction, IMA Journal of Management Mathematics, 13, 187-199.