Of Rising Scholars

Fall 2024

Hari will be presenting at The Symposium of Rising Scholars on Saturday, September 21st! To attend the event and see Hari's presentation.

Go to Polygence Scholars page
Hari Sagar's cover illustration
Polygence Scholar2024
Hari Sagar's profile

Hari Sagar

Class of 2026Redwood City, California



  • "Analysis of Pretrained ViT Backbones in Classification for Social Impacts" with mentor David (July 7, 2024)

Project Portfolio

Analysis of Pretrained ViT Backbones in Classification for Social Impacts

Started Mar. 18, 2024

Abstract or project description

This paper compares the effectiveness of pre-trained frozen backbones. Three different Vision Transformer (ViT) backbones were evaluated and compared to convolutional neural network-based backbones for the classification of datasets that are relevant to social impact. The approach resulted in high results for one particular ViT known as DINOv2, which achieved an accuracy of 95.9% in the Functional Map of the World dataset.

This paper evaluates recent pre-trained backbones, iBOT, and Masked AutoEncoder (MAE). These are evaluated on datasets known as RealWaste, functional Map of the World, and DeFungi. These were chosen as they represent different aspects of human social impact, specifically, human-generated waste, environmental loss due to infrastructure, and classification of medical/biological images.