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Joe X

- Research Program Mentor

PhD at University of Minnesota - Twin Cities

Expertise

AI, machine learning, deep learning, data science, natural language processing, signal processing, image processing, computational modeling, biophysical modeling, statistics, biomedical engineering, medical devices, neuromodulation, movement disorders

Bio

My main research interests are in Artificial Intelligence (AI) and Biomedical Engineering. I have a B.S. (UC Berkeley) in Bioengineering, M.S. (UIUC) in Computer Science (Data Science), and Ph.D. (U Minnesota) in Biomedical Engineering. My Ph.D. research was in the area of neuromodulation (modulation of the nervous system using external stimuli), focused on understanding and improving deep brain stimulation therapy via computational modeling and neural signal processing. I began my professional career as an algorithms scientist in the medical device industry (Medtronic, Starkey Hearing Technologies), working on applications such as seizure detection, closed-loop brain stimulation, respiratory anomaly detection and health-wellness tracking. Later, I pivoted my career into the AI and Data Science spaces (General Mills, Target, UnitedHealth Group) and worked on applications such as demand forecasting, algorithmic commodities trading, recommender systems, and AI-driven solutions in healthcare. My experiences exposed me to a variety of disciplines, including: statistics, machine learning, signal processing, natural language processing, control systems, computational modeling, neuroscience, and many more. My passion is to learn. Outside of time with my family, I am either pursuing a graduate degree, collaborating on academic research, or learning a new subject online. For leisure, I enjoy reading and writing.

Project ideas

Project ideas are meant to help inspire student thinking about their own project. Students are in the driver seat of their research and are free to use any or none of the ideas shared by their mentors.

Build a Recommender System

Do you ever wonder how online retailers or streaming services know just what "you may also like" based on your browsing history? The secret is something called a "recommender system"! Let's find out how it works by building one from scratch using open source data. We can further explore state-of-the-art methods in this domain.

Explore Biological vs. Artificial Neurons

Deep learning (DL) is one of the hottest topics today in the field of artificial intelligence. At its core, DL uses "artificial neural networks" to learn complex nonlinear functions from data. The building blocks of these networks are 'artificial neurons', which are computational entities that mimic the functioning of biological neurons. But just how similar (or different) is the artificial neuron to the real biological neuron? Let's find out by building (coding) a biophysical neuron model and an artificial neuron. Doing so will help one understand the inner workings of both entities and how they relate to and differ from one another.

Build a Seizure Detection Algorithm

Interested in learning about the application of machine learning in medicine? Let's build a seizure detection algorithm using open source neural data and statement of the art machine learning algorithm. In this project, you can learn about neuroanatomy, neurophysiology of epilepsy, signal processing, and machine learning.

Coding skills

Python, R, MATLAB, SQL, C++, Bash, LaTex

Languages I know

Chinese, native

Teaching experience

Instructor at learning center for elementary and middle school students | TA for undergraduate level Chinese language course | TA for graduate level Biomedical Engineering courses | Mentored interns as industry professional

Credentials

Work experience

UnitedHealth Group (2022 - Current)
Senior Principal Machine Learning Data Scientist
Target (2021 - 2022)
Lead AI Scientist
Starkey Hearing Technologies, General Mills (2019 - 2021)
Senior Machine Learning Algorithms Engineer I / Senior Data Scientist
Medtronic (2016 - 2019)
Senior Algorithms Scientist

Education

University of California Berkeley (UC Berkeley)
BS Bachelor of Science (2010)
Biomedical Engineering
University of Illinois at Urbana Champaign (UIUC)
MS Master of Science candidate
Computer Science
University of Minnesota - Twin Cities
PhD Doctor of Philosophy (2016)
Biomedical Engineering

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