The INFORMS 2019 was held in Seattle, WA. We made the following three presentations.

• Classification of ECG Signals via Higher Order Hidden Markov Model, by Ying Liao, and Yisha Xiang
• Condition-based Maintenance for Multi-component Systems: Modeling, Structural Properties, and Algorithms, by Zhicheng Zhu, and Yisha Xiang
• Condition-based Predictive Maintenance Optimization for Multi-component Systems subject to a System Reliability Requirement, by Yue Shi, Weihang Zhu, and Yisha Xiang