The IISE (IISE Annual Conference and Exposition) was held in Orlando, FL. We made the following two presentations:

• Multi-component Maintenance Optimization: A Progressive – Hedging Approach by Zhicheng Zhu, Yisha Xiang & Bo Zeng
• Optimal Maintenance Policies for Multi-level Preventive Maintenance with Complex Effects by Yue Shi, Yisha Xiang, & Mingyang Li