A First Step Towards Behavioral Coaching for Managing Stress: A Case Study on Optimal Policy Estimation with Multi-stage Threshold Q-learning. - Xinyu Hu; Pei-Yun Sabrina Hsueh; Ching-Hua Chen; Keith M. Diaz; Ying-Kuen K. Cheung; Min Qian (AMIA, 2017)

Comparison of Different Algorithms for Sentiment Analysis: Psychological Stress Notes. - Sunmoo Yoon; Faith Parsons; Kevin Sundquist; Jacob Julian; Joseph E. Schwartz; Matthew M. Burg; Karina W. Davidson; Keith M. Diaz (MedInfo, 2017)

An interpretable health behavioral intervention policy for mobile device users. - Xinyu Hu; Pei-Yun Sabrina Hsueh; Ching-Hua Chen; Keith M. Diaz; Faith Parsons; I-En Liao; M. Qian; Ying-Kuen K. Cheung (IBM J. Res. Dev., 2018)

Quantile Coarsening Analysis of High-Volume Wearable Activity Data in a Longitudinal Observational Study. - Ying-Kuen K. Cheung; Pei-Yun Sabrina Hsueh; Ipek Ensari; Joshua Z. Willey; Keith M. Diaz (Sensors, 2018)

Use of a Single-Item Ecological Momentary Assessment to Measure Daily Exercise: Agreement with Accelerometer-Measured Exercise. - Kevin Sundquist; Joseph E. Schwartz; Matthew M. Burg; Karina W. Davidson; Keith M. Diaz (Sensors, 2024)