Vishnu Lokhande
Assistant Professor
University at Buffalo, SUNY
Monday, April 15
3:30 pm to 4:30 pm
Newell-Simon Hall 3305
3:30 pm to 4:30 pm
Newell-Simon Hall 3305
Creating robust deep learning models involves effectively managing nuisance variables
Abstract:
Over the past decade, we have witnessed significant advances in capabilities of deep neural network models in vision and machine learning. However, issues related to bias, discrimination, and fairness in general, have received a great deal of negative attention (e.g., mistakes in surveillance and animal-human confusion of vision models). But bias in AI models goes beyond compliance with anti-discrimination legislation, ensuring dataset balance, or making model behavior more predictable on minority groups. While impartiality towards sensitive attributes like gender, race, and age are very relevant, the general study of bias allows a much better understanding of how nuisance or co-existing/spurious attributes influence the behavior of the models, how to mitigate such influence and consequently, build robust and more inclusive models. If fairness is incorporated as a first order constraint in the model development lifecycle, are the models more interpretable and consistent with human perception? How does controlling nuisance variables enable dataset pooling in multi-site international studies to understand early signs of disease? What are the computational/statistical challenges of learning representations that are fairness-aware? In this talk, I will cover a range of results that will shed light on these questions and outline an exciting research agenda with applications spanning industry deployment of foundational models, healthcare as well as social sciences research..
Bio:
Vishnu Lokhande is a tenure-track assistant professor of Computer Science and Engineering at the University at Buffalo, State University of New York (SUNY). He is also affiliated with the Institute of Artificial Intelligence and Data Science at the University at Buffalo. Vishnu earned his PhD under the supervision of Prof. Vikas Singh at the University of Wisconsin-Madison. His research centers on the intersection of Computer Vision, Machine Learning, and numerical optimization. Specifically, he focuses on developing fairness algorithms, data pooling and harmonization in biomedical applications, and semi-supervised learning. Vishnu has completed research internships at Google Brain and Microsoft Research, and he was a finalist for the 2021 Microsoft Research PhD Fellowship. Prior to pursuing his PhD, he obtained his bachelor’s degree from the Indian Institute of Technology Kanpur. If you ever find yourself in the Western New York area, Vishnu would love to treat you to the best Buffalo Wild Wings in town.
Homepage: https://www.buffalo.edu/~vishnulo
Sponsored in part by: Meta Reality Labs Pittsburgh