Robust Object Recognition

Outcome/Accomplishment

The Center for Smart Streetscapes (NSF CS3), a U.S. National Science Foundation (NSF)-funded Engineering Research Center (ERC) based at Columbia University, researches ways to forge livable and safe streetscapes. One area is situational awareness, which involves, among other things, multi-modal integration of inputs relating to attention. Researchers found that they could address spurious correlations in visual classification by filtering at the input level—before they enter the model. A key finding was that decoupling "where to look" from "what to extract" showed that small models (ViT-S in the figure) yield sharper, more focused attention, while large models (ViT-G) produce richer crop embeddings. 

Impact/Benefits

This finding leads to the next frontier of research in this area: non-spatial spurious features. In the figure, A² assumes attention naturally concentrates on causal features — this breaks for tasks like CelebA blond-hair prediction where the spurious feature is gender. A small MLP adapter (3,000 parameters) redirects attention to the causally relevant region (hair vs. face/body). This improves the worst-group accuracy from 23% to 66% on blond men, outperforming the full-image baseline by 35%. 

Explanation/Background

The researchers are now testing across additional datasets and are set to reshape how we think about input-level debiasing.

Image
Credit:
NSF CS3

Location

New York City, NY

e-mail

streetscapes@columbia.edu

Start Year

Microelectronics and IT

Microelectronics, Sensing, and Information Technology Icon
Microelectronics, Sensing, and Information Technology Icon

Quantum, Microelectronics, Sensing, and IT

Lead Institution

Columbia University

Core Partners

Florida Atlantic University, Lehman College, Rutgers University, University of Central Florida
Image
Credit:
NSF CS3

Outcome/Accomplishment

The Center for Smart Streetscapes (NSF CS3), a U.S. National Science Foundation (NSF)-funded Engineering Research Center (ERC) based at Columbia University, researches ways to forge livable and safe streetscapes. One area is situational awareness, which involves, among other things, multi-modal integration of inputs relating to attention. Researchers found that they could address spurious correlations in visual classification by filtering at the input level—before they enter the model. A key finding was that decoupling "where to look" from "what to extract" showed that small models (ViT-S in the figure) yield sharper, more focused attention, while large models (ViT-G) produce richer crop embeddings. 

Location

New York City, NY

e-mail

streetscapes@columbia.edu

Start Year

Microelectronics and IT

Microelectronics, Sensing, and Information Technology Icon
Microelectronics, Sensing, and Information Technology Icon

Quantum, Microelectronics, Sensing, and IT

Lead Institution

Columbia University

Core Partners

Florida Atlantic University, Lehman College, Rutgers University, University of Central Florida

Impact/benefits

This finding leads to the next frontier of research in this area: non-spatial spurious features. In the figure, A² assumes attention naturally concentrates on causal features — this breaks for tasks like CelebA blond-hair prediction where the spurious feature is gender. A small MLP adapter (3,000 parameters) redirects attention to the causally relevant region (hair vs. face/body). This improves the worst-group accuracy from 23% to 66% on blond men, outperforming the full-image baseline by 35%. 

Explanation/Background

The researchers are now testing across additional datasets and are set to reshape how we think about input-level debiasing.