Research Interests

Mobile Health, Machine Learning, Human Activity Recognition, Time Series Data Analysis


2020 (expected)
PhD, Computer Science, Northwestern University


Estimating Caloric Intake in Bedridden Hospital Patients with Audio and Neck-worn Sensors. S. Zhang, D. Nguyen, G. Zhang, R. Xu, N. Maglaveras, N. Alshurafa. The Third IEEE/ACM International Conference on Connected Health: Applications, Systems and Engineering Technologies (CHASE 2018).

I sense overeating: Motif-based machine learning framework to detect overeating using wrist-worn sensing. S. Zhang, W. Stogin, and N. Alshurafa. Information Fusion, Volume 41, May 2018.

When generalized eating detection machine learning models fail in the field. S. Zhang, R. Alharbi, M. Nicholson, and N. Alshurafa. Proceedings of the 2017 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2017 ACM International Symposium on Wearable Computers (Ubicomp 2017).

Food watch: detecting and characterizing eating episodes through feeding gestures. (Best Paper Award) S. Zhang, R. Alharbi, W. Stogin, M. Pourhomayun, B. Spring, and N. Alshurafa. Proceedings of the 11th EAI International Conference on Body Area Networks (BodyNets 2016).

An iterative dimensionality-scaling system for real-time health monitoring applications. H. Kalantarian, M. Sarrafzadeh, S. Zhang, and N. Alshurafa. 2016 IEEE International Conference on Healthcare Informatics (ICHI).

Machine learning algorithms applied to detect feeding gestures. S. Zhang, R. Alharbi, W. Stogin, K. Moran, AF. Pfammatter, B. Spring, and N. Alshurafa. The Obesity Society 2016.

Auto-commissioning and adaptive tuning of servo control parameters in an electro-hydraulic system based on physical plant model. X. Cheng, S. Zhang, Y. Chen, H. Zhang, X. Zhu. 2014 IEEE 15th Workshop on Control and Modeling for Power Electronics (COMPEL).


Defining Gold Standard Measures for Obesity-Related Research. NU’s Data Science Research Day, hosted by Northwestern’s Data Science Initiative (DSI).


NSF Student Attendance Scholarship, CHASE 2018
Best Paper Award, Bodynets 2016
Outstanding Undergraduate Graduation Thesis Award
National Freescale Cup Intelligent Car Racing Competition


2018 Winter
EECS 395, 495: Wireless And Mobile Health (MHealth), Teaching Assistant
2017 Winter
EECS 397, 497: Wireless And Mobile Health (MHealth), Teaching Assistant