Search Results for author: Niamh Belton

Found 8 papers, 5 papers with code

An AI System for Continuous Knee Osteoarthritis Severity Grading Using Self-Supervised Anomaly Detection with Limited Data

1 code implementation16 Jul 2024 Niamh Belton, Aonghus Lawlor, Kathleen M. Curran

This work proposes a three stage approach for automated continuous grading of knee OA that is built upon the principles of Anomaly Detection (AD); learning a robust representation of healthy knee X-rays and grading disease severity based on its distance to the centre of normality.

Denoising Pseudo Label +3

Rethinking Knee Osteoarthritis Severity Grading: A Few Shot Self-Supervised Contrastive Learning Approach

no code implementations18 Jun 2024 Niamh Belton, Misgina Tsighe Hagos, Aonghus Lawlor, Kathleen M. Curran

Currently, radiologists grade the severity of OA on an ordinal scale from zero to four using the Kellgren-Lawrence (KL) system.

Contrastive Learning

Distance-Aware eXplanation Based Learning

1 code implementation11 Sep 2023 Misgina Tsighe Hagos, Niamh Belton, Kathleen M. Curran, Brian Mac Namee

eXplanation Based Learning (XBL) is an interactive learning approach that provides a transparent method of training deep learning models by interacting with their explanations.

Image Classification

Interpretable Weighted Siamese Network to Predict the Time to Onset of Alzheimer's Disease from MRI Images

1 code implementation14 Apr 2023 Misgina Tsighe Hagos, Niamh Belton, Ronan P. Killeen, Kathleen M. Curran, Brian Mac Namee

To this end, we select progressive MCI patients from the Alzheimer's Disease Neuroimaging Initiative (ADNI) dataset and construct an ordinal dataset with a prediction target that indicates the time to progression to AD.

Image Classification Ordinal Classification

FewSOME: One-Class Few Shot Anomaly Detection with Siamese Networks

1 code implementation17 Jan 2023 Niamh Belton, Misgina Tsighe Hagos, Aonghus Lawlor, Kathleen M. Curran

Our experiments demonstrate that FewSOME performs at state-of-the-art level on benchmark datasets MNIST, CIFAR-10, F-MNIST and MVTec AD while training on only 30 normal samples, a minute fraction of the data that existing methods are trained on.

Anomaly Detection

Optimising Knee Injury Detection with Spatial Attention and Validating Localisation Ability

no code implementations18 Aug 2021 Niamh Belton, Ivan Welaratne, Adil Dahlan, Ronan T Hearne, Misgina Tsighe Hagos, Aonghus Lawlor, Kathleen M. Curran

As MRI data is acquired from three planes, we compare our technique using data from a single-plane and multiple planes (multi-plane).

Semi-Supervised Siamese Network for Identifying Bad Data in Medical Imaging Datasets

1 code implementation16 Aug 2021 Niamh Belton, Aonghus Lawlor, Kathleen M. Curran

Noisy data present in medical imaging datasets can often aid the development of robust models that are equipped to handle real-world data.

A Simplistic Machine Learning Approach to Contact Tracing

no code implementations10 Dec 2020 Carlos Gómez, Niamh Belton, Boi Quach, Jack Nicholls, Devanshu Anand

This report is based on the modified NIST challenge, Too Close For Too Long, provided by the SFI Centre for Machine Learning (ML-Labs).

BIG-bench Machine Learning

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