Search Results for author: Aonghus Lawlor

Found 13 papers, 8 papers with code

Transformers4NewsRec: A Transformer-based News Recommendation Framework

no code implementations17 Oct 2024 Dairui Liu, Honghui Du, Boming Yang, Neil Hurley, Aonghus Lawlor, Irene Li, Derek Greene, Ruihai Dong

Pre-trained transformer models have shown great promise in various natural language processing tasks, including personalized news recommendations.

Model Selection News Recommendation

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

Can We Transfer Noise Patterns? A Multi-environment Spectrum Analysis Model Using Generated Cases

1 code implementation2 Aug 2023 Haiwen Du, Zheng Ju, Yu An, Honghui Du, Dongjie Zhu, Zhaoshuo Tian, Aonghus Lawlor, Ruihai Dong

To make the analysis model applicable to more environments, we propose a noise patterns transferring model, which takes the spectrum of standard water samples in different environments as cases and learns the differences in their noise patterns, thus enabling noise patterns to transfer to unknown samples.

Denoising

Pure Spectral Graph Embeddings: Reinterpreting Graph Convolution for Top-N Recommendation

1 code implementation28 May 2023 Edoardo D'Amico, Aonghus Lawlor, Neil Hurley

The use of graph convolution in the development of recommender system algorithms has recently achieved state-of-the-art results in the collaborative filtering task (CF).

Collaborative Filtering Recommendation Systems +1

Item Graph Convolution Collaborative Filtering for Inductive Recommendations

1 code implementation28 Mar 2023 Edoardo D'Amico, Khalil Muhammad, Elias Tragos, Barry Smyth, Neil Hurley, Aonghus Lawlor

We propose the construction of an item-item graph through a weighted projection of the bipartite interaction network and to employ convolution to inject higher order associations into item embeddings, while constructing user representations as weighted sums of the items with which they have interacted.

Collaborative Filtering Recommendation Systems

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.

Improving Explainable Recommendations with Synthetic Reviews

no code implementations18 Jul 2018 Sixun Ouyang, Aonghus Lawlor, Felipe Costa, Peter Dolog

We demonstrate that the synthetic personalised reviews have better recommendation performance than human written reviews.

Language Modelling Recommendation Systems +1

Automatic Generation of Natural Language Explanations

no code implementations4 Jul 2017 Felipe Costa, Sixun Ouyang, Peter Dolog, Aonghus Lawlor

The model generates text reviews given a combination of the review and ratings score that express opinions about different factors or aspects of an item.

Negation Recommendation Systems

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