Alexander C. Li

I'm a final year PhD student in the Machine Learning Department at Carnegie Mellon University. I'm advised by Deepak Pathak, and my work is supported by the NSF Graduate Research Fellowship.

Previously, I was an electrical engineering and computer science major at UC Berkeley, where I received my BS and MS. I was a researcher in the Berkeley Artificial Intelligence Research Lab and was advised by Pieter Abbeel and Lerrel Pinto. I've also spent time as an intern at AI at Meta.

If you're interested in collaborating, send me an email!

Email  /  CV  /  Google Scholar  /  GitHub  /  Twitter

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Research

I'm interested in generative models, generalization, optimization, and the role of data in deep learning. Some papers are highlighted.

Generative Classifiers Avoid Shortcut Solutions
Alexander C. Li, Ananya Kumar, Deepak Pathak
ICML 2024 Workshop on Structured Probabilistic Inference & Generative Modeling (Oral Presentation)

openreview | abstract

Who Needs Features? On the Surprising Effectiveness of Attention Transfer for Vision Transformers
Alexander C. Li, Yuandong Tian, Beidi Chen, Deepak Pathak, Xinlei Chen
In submission

An Introduction to Vision-Language Modeling
Florian Bardes, Richard Yuanzhe Pang, Anurag Ajay, Alexander C. Li, ... (41 total authors)

arxiv | pdf | abstract

Diffusion-TTA: Test-time Adaptation of Discriminative Models via Generative Feedback
Mihir Prabhudesai*, Tsung-Wei Ke*, Alexander C. Li, Deepak Pathak, Katerina Fragkiadaki
NeurIPS 2023

arxiv | pdf | project page | code | abstract

Your Diffusion Model is Secretly a Zero-Shot Classifier
Alexander C. Li, Mihir Prabhudesai, Shivam Duggal, Ellis Brown, Deepak Pathak
ICCV 2023

arxiv | pdf | project page | code | abstract

Internet Explorer: Targeted Representation Learning on the Open Web
Alexander C. Li*, Ellis Brown*, Alexei A. Efros, Deepak Pathak
ICML 2023

arxiv | pdf | project page | code | abstract

Understanding Collapse in Non-Contrastive Siamese Representation Learning
Alexander C. Li, Alexei A. Efros, Deepak Pathak
ECCV 2022

arxiv | pdf | project page | code | bibtex | abstract

Functional Regularization for Reinforcement Learning via Learned Fourier Features
Alexander C. Li, Deepak Pathak
NeurIPS 2021

arxiv | pdf | project page | code | bibtex | abstract

Generalized Hindsight for Reinforcement Learning
Alexander C. Li, Lerrel Pinto, Pieter Abbeel
NeurIPS 2020

arxiv | pdf | project page | code | bibtex | abstract

Sub-policy Adaptation for Hierarchical Reinforcement Learning
Alexander C. Li*, Carlos Florensa*, Ignasi Clavera, Pieter Abbeel
International Conference on Learning Representations (ICLR), 2020

arxiv | pdf | project page | code | bibtex | abstract

Service
berkeley Co-head TA, CS 294-158: Deep Unsupervised Learning, Spring 2020

Head Content TA, EECS 126: Stochastic Processes, Fall 2019

TA, CS 188: Artificial Intelligence, Spring 2019

TA, CS 188: Artificial Intelligence, Fall 2018

Academic Intern, CS 189: Machine Learning, Spring 2018

Reader, CS 70: Discrete Mathematics & Probability, Fall 2017
Mentor, Google Code Corps 2017
Awards and Honors

Website template from Jon Barron.