Machine Learning Engineer
AI at Meta

MS CS student at Georgia Institute of Technology
Email: ChristopherLeung (at) hotmail (dot) ca

I am a Machine Learning Engineer at Meta and a MS CS student at the Georgia Institute of Technology studying Computer Science with a specialization in Machine Learning. I am currently also a member of the Design & Intelligence Lab advised by Dr. Ashok K. Goel.

At Meta, my team works on cutting edge research in graph algorithms for user and content understanding on Instagram and Facebook reels recommendations. At Pinterest, I led a team on shopping ranking and recommendation systems with deep learning models. At Okta, my focus was on how to deploy machine learning models to detect and prevent user account-takeover and large-scale cyberattacks. I graduated from the University of Waterloo with a (Hons) Bachelor of Computer Science in 2019.

Research Interests

Theory of Mind, Graph Algorithms, Knowledge Representation, Recommender Systems, Natural Language Processing, Emergent Communication, Multi-modal/Grounded Agents, Pragmatic Agents, Active Learning, Continuous Learning


Research Projects

LLM-Rec: Personalized Recommendation via Prompting Lrage Language Models
H. Lyu, S. Jiang, H. Zeng, Q. Wang, S. Zhang, R.Chen, C. Leung, J. Tang, Y. Xia, J. Luo
Submitted to ICLR'23. Pre-print available here.
Test-Cost Sensitive Methods for Identifying Nearby Points
K. Hyun and C. Leung
Pre-print available here.

Experience

Machine Learning Engineer
Modern Recommender Systems AI
(2022 - Present)

Machine Learning Engineer
Shopping Distribution Team
(2021 - 2022)

Software Engineer
Security Intelligence Platform Team
(2019 - 2021)

Software Engineer Intern
Search Ads Risk Team
(Winter 2018)

Software Engineer Intern
Adaptive Team
(Summer 2018)

Software Developer Co-op
Master Data Management Team
(Winter 2016 - Spring 2017)