activity
20222026
most citedOLIVES Dataset: Ophthalmic Labels for Investigating Visual Eye Semantics

18 citations · 37 across the 15 of their papers we have counts for

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11 papers · 1 filter

cs.CV2026

Gradient based Severity Labeling for Biomarker Classification in OCT

Kiran Kokilepersaud, Mohit Prabhushankar, Ghassan AlRegib +2

In this paper, we propose a novel selection strategy for contrastive learning for medical images. On natural images, contrastive learning uses augmentations to select positive and…

cs.CV2025

Countering Multi-modal Representation Collapse through Rank-targeted Fusion

Seulgi Kim, Kiran Kokilepersaud, Mohit Prabhushankar +1

Multi-modal fusion methods often suffer from two types of representation collapse: feature collapse where individual dimensions lose their discriminative power (as measured by eige…

cs.CV2025

Subject Invariant Contrastive Learning for Human Activity Recognition

Yavuz Yarici, Kiran Kokilepersaud, Mohit Prabhushankar +1

The high cost of annotating data makes self-supervised approaches, such as contrastive learning methods, appealing for Human Activity Recognition (HAR). Effective contrastive learn…

cs.CV2024

HEX: Hierarchical Emergence Exploitation in Self-Supervised Algorithms

Kiran Kokilepersaud, Seulgi Kim, Mohit Prabhushankar +1

In this paper, we propose an algorithm that can be used on top of a wide variety of self-supervised (SSL) approaches to take advantage of hierarchical structures that emerge during…

cs.CV2024

Explaining Representation Learning with Perceptual Components

Yavuz Yarici, Kiran Kokilepersaud, Mohit Prabhushankar +1

Self-supervised models create representation spaces that lack clear semantic meaning. This interpretability problem of representations makes traditional explainability methods inef…

cs.CV2024

Taxes Are All You Need: Integration of Taxonomical Hierarchy Relationships into the Contrastive Loss

Kiran Kokilepersaud, Yavuz Yarici, Mohit Prabhushankar +1

In this work, we propose a novel supervised contrastive loss that enables the integration of taxonomic hierarchy information during the representation learning process. A supervise…

cs.CV2023

FOCAL: A Cost-Aware Video Dataset for Active Learning

Kiran Kokilepersaud, Yash-Yee Logan, Ryan Benkert +6

In this paper, we introduce the FOCAL (Ford-OLIVES Collaboration on Active Learning) dataset which enables the study of the impact of annotation-cost within a video active learning…

cs.CV2023★ 16 cited

Clinically Labeled Contrastive Learning for OCT Biomarker Classification

Kiran Kokilepersaud, Stephanie Trejo Corona, Mohit Prabhushankar +2

This paper presents a novel positive and negative set selection strategy for contrastive learning of medical images based on labels that can be extracted from clinical data. In the…

cs.CV2023

Exploiting the Distortion-Semantic Interaction in Fisheye Data

Kiran Kokilepersaud, Mohit Prabhushankar, Yavuz Yarici +2

In this work, we present a methodology to shape a fisheye-specific representation space that reflects the interaction between distortion and semantic context present in this data m…

cs.CV2022★ 2 cited

Clinical Contrastive Learning for Biomarker Detection

Kiran Kokilepersaud, Mohit Prabhushankar, Ghassan AlRegib

This paper presents a novel positive and negative set selection strategy for contrastive learning of medical images based on labels that can be extracted from clinical data. In the…

cs.CV2022

Volumetric Supervised Contrastive Learning for Seismic Semantic Segmentation

Kiran Kokilepersaud, Mohit Prabhushankar, Ghassan AlRegib

In seismic interpretation, pixel-level labels of various rock structures can be time-consuming and expensive to obtain. As a result, there oftentimes exists a non-trivial quantity…