Hongyang (Ryan) Zhang Address: 177 Huntington Ave FL 22nd, Room #2211 Email: ho.zhang@northeastern.edu |
I am an Assistant Professor in the Khoury College of Computer Sciences at Northeastern University in Boston. My research interests lie at the intersection of machine learning, algorithms, statistical learning, data mining, and graphs, including topics such as:
Efficient learning algorithms for using and fine-tuning neural networks, as well as understanding the generalization properties of neural networks with complex structure by examining the Hessian.
Efficient methods for foundation models, including multitask learning, fine-tuning, and instruction tuning.
Graph neural networks, such as their sample complexities, and time series graph mining.
I received my Ph.D. in computer science from Stanford and my B.Eng. in computer science from Shanghai Jiao Tong University. I spent about a year as a postdoc within the statistics and data science department at University of Pennsylvania. For more information about me, please look at my cv.
I enjoy working on technically challenging problems, and strive for broader impacts by creating new knowledge and improving access to education. I support accessible and reproducible research. See our experiment codes on GitHub. Here is a list of my recent activities.
CS 7140, Advanced Machine Learning, Spring 2021, Spring 2022, Spring 2023, Spring 2025.
DS 5220, Supervised Machine Learning and Learning Theory, Fall 2021, Fall 2022, Fall 2024.
CS 6140, Machine Learning, Fall 2023.
DS 4400, Machine Learning and Data Mining I, Spring 2023.
CS 7180, Special Topics in Artificial Intelligence (Algorithmic and Statistical Aspects of Deep Learning), Fall 2020.
Students (lab page)
Dongyue Li, PhD
Zhenshuo Zhang, PhD
Can He, MS student
Alumni
Abhinav Nippani, MS RA; now working on a stealth startup
Haotian Ju, MS RA; now working as a quantitative researcher
Prospective students: I am always looking for talented and motivated students to join the lab. Please take a look at our lab page at labpage and our recent projects at github first before contacting me. Students with a strong background in mathematics or programming are generally a good fit for conducting the projects in our lab. If you are interested, please feel free to email me at hongyang90@gmail.com to express your interests.
Students who wish to visit me at 177: Note that this building has access control. If you plan to visit me in-person, you should confirm the scheduled time with me before arrival so that I could give you permission to enter the building at the security.
Area Chair/Senior Program Committee: ICML (2024-2025), AISTATS (2023-2025), ALT (2024), AAAI (2025), Journal of Data-Centric Machine Learning Research (2024-).
Recently Refereed Venues (in addition to the above): ARR, FOCS, JMLR, TMLR, IEEE Transactions on Information Theory.
Conference Organization: INFORMS session chair (2023-2024).
October 2019 to July 2020: Postdoctoral Researcher, University of Pennsylvania
September 2013 to September 2019: Ph.D., Stanford University
July 2012 to July 2013: Research Assistant, Nanyang Technological University
September 2008 to September 2012: B.Eng., Shanghai Jiao Tong University
Personal: My Chinese name is written as 张泓洋. I grew up in Tianmen, which is a small town near Wuhan in Hubei province.