no code implementations • 17 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.
1 code implementation • 5 Aug 2024 • Shuhao Guan, Derek Greene
This paper explores the application of synthetic data in the post-OCR domain on multiple fronts by conducting experiments to assess the impact of data volume, augmentation, and synthetic data generation methods on model performance.
Optical Character Recognition (OCR) Synthetic Data Generation
no code implementations • 6 Jun 2024 • Cheng Xu, Shuhao Guan, Derek Greene, M-Tahar Kechadi
The rapid development of Large Language Models (LLMs) like GPT-4, Claude-3, and Gemini has transformed the field of natural language processing.
no code implementations • 20 Jan 2024 • Suchana Datta, Debasis Ganguly, Sean MacAvaney, Derek Greene
Additionally, to further improve retrieval effectiveness with this selective PRF approach, we make use of the model's confidence estimates to combine the information from the original and expanded queries.
1 code implementation • 16 Dec 2023 • Dairui Liu, Boming Yang, Honghui Du, Derek Greene, Neil Hurley, Aonghus Lawlor, Ruihai Dong, Irene Li
The results show LLM's effectiveness in accurately identifying topics of interest and delivering comprehensive topic-based explanations.
1 code implementation • 26 Sep 2023 • Eoghan Cunningham, Derek Greene, Barry Smyth
In the extensive recommender systems literature, novelty and diversity have been identified as key properties of useful recommendations.
no code implementations • 13 Jun 2023 • Susan Leavy, Gerardine Meaney, Karen Wade, Derek Greene
The increasing availability of digital collections of historical and contemporary literature presents a wealth of possibilities for new research in the humanities.
1 code implementation • 13 Jun 2023 • Dairui Liu, Derek Greene, Irene Li, Xuefei Jiang, Ruihai Dong
News recommender systems (NRS) have been widely applied for online news websites to help users find relevant articles based on their interests.
no code implementations • 1 Apr 2023 • Suchana Datta, Debasis Ganguly, Derek Greene, Mandar Mitra
Despite the retrieval effectiveness of queries being mutually independent of one another, the evaluation of query performance prediction (QPP) systems has been carried out by measuring rank correlation over an entire set of queries.
1 code implementation • 16 Dec 2022 • Eoin Delaney, Arjun Pakrashi, Derek Greene, Mark T. Keane
Counterfactual explanations have emerged as a popular solution for the eXplainable AI (XAI) problem of elucidating the predictions of black-box deep-learning systems due to their psychological validity, flexibility across problem domains and proposed legal compliance.
2 code implementations • Findings (ACL) 2022 • Dairui Liu, Derek Greene, Ruihai Dong
Many recent deep learning-based solutions have widely adopted the attention-based mechanism in various tasks of the NLP discipline.
no code implementations • 15 Feb 2022 • Suchana Datta, Debasis Ganguly, Derek Greene, Mandar Mitra
In contrast to unsupervised approaches that rely on various statistics of document score distributions, our approach is entirely data-driven.
no code implementations • 13 Feb 2022 • Debasis Ganguly, Suchana Datta, Mandar Mitra, Derek Greene
An important characteristic of QPP evaluation is that, since the ground truth retrieval effectiveness for QPP evaluation can be measured with different metrics, the ground truth itself is not absolute, which is in contrast to other retrieval tasks, such as that of ad-hoc retrieval.
no code implementations • 20 Jul 2021 • Eoin Delaney, Derek Greene, Mark T. Keane
Whilst an abundance of techniques have recently been proposed to generate counterfactual explanations for the predictions of opaque black-box systems, markedly less attention has been paid to exploring the uncertainty of these generated explanations.
no code implementations • 29 Apr 2021 • Mark T Keane, Eoin M Kenny, Mohammed Temraz, Derek Greene, Barry Smyth
Recently, it has been proposed that fruitful synergies may exist between Deep Learning (DL) and Case Based Reasoning (CBR); that there are insights to be gained by applying CBR ideas to problems in DL (what could be called DeepCBR).
1 code implementation • 28 Sep 2020 • Eoin Delaney, Derek Greene, Mark T. Keane
In recent years, there has been a rapidly expanding focus on explaining the predictions made by black-box AI systems that handle image and tabular data.
no code implementations • 12 Aug 2020 • Patrick Leydon, Martin O'Connell, Derek Greene, Kathleen M Curran
Segmentation of bone regions allows for enhanced diagnostics, disease characterisation and treatment monitoring in CT imaging.
no code implementations • 14 May 2020 • Susan Leavy, Gerardine Meaney, Karen Wade, Derek Greene
Artificial Intelligence has the capacity to amplify and perpetuate societal biases and presents profound ethical implications for society.
no code implementations • 14 Aug 2019 • Siobhan Grayson, Derek Greene
Inspired by diachronic word analysis from the field of natural language processing, we propose an approach for uncovering temporal insights regarding user roles from social networks using graph embedding methods.
1 code implementation • 6 Oct 2018 • Arjun Pakrashi, Elham Alghamdi, Brian Mac Namee, Derek Greene
Meetup. com is a global online platform which facilitates the organisation of meetups in different parts of the world.
Social and Information Networks Computers and Society
1 code implementation • 23 Feb 2017 • Mark Belford, Brian Mac Namee, Derek Greene
Topic models can provide us with an insight into the underlying latent structure of a large corpus of documents.
no code implementations • 22 Feb 2017 • M. Atif Qureshi, Derek Greene
We present an unsupervised explainable word embedding technique, called EVE, which is built upon the structure of Wikipedia.
1 code implementation • 11 Jul 2016 • Derek Greene, James P. Cross
To unveil the plenary agenda and detect latent themes in legislative speeches over time, MEP speech content is analyzed using a new dynamic topic modeling method based on two layers of Non-negative Matrix Factorization (NMF).
no code implementations • 12 Jan 2016 • Ewa Młynarska, Derek Greene, Pádraig Cunningham
In this paper we conduct an analysis of Moodle activity data focused on identifying early predictors of good student performance.
no code implementations • WS 2016 • Jing Su, Oisín Boydell, Derek Greene, Gerard Lynch
Topic modelling techniques such as LDA have recently been applied to speech transcripts and OCR output.
no code implementations • 27 May 2015 • Derek Greene, James P. Cross
This study analyzes political interactions in the European Parliament (EP) by considering how the political agenda of the plenary sessions has evolved over time and the manner in which Members of the European Parliament (MEPs) have reacted to external and internal stimuli when making Parliamentary speeches.
no code implementations • 29 Jul 2014 • Xiangju Qin, Derek Greene, Pádraig Cunningham
Collaborations such as Wikipedia are a key part of the value of the modern Internet.
2 code implementations • 16 Apr 2014 • Derek Greene, Derek O'Callaghan, Pádraig Cunningham
Topic modeling refers to the task of discovering the underlying thematic structure in a text corpus, where the output is commonly presented as a report of the top terms appearing in each topic.
no code implementations • 12 Mar 2014 • Igor Brigadir, Derek Greene, Pádraig Cunningham
In this paper we examine the effectiveness of adaptive mechanisms for tracking and summarizing breaking news stories.
5 code implementations • 11 Oct 2011 • Aaron F. McDaid, Derek Greene, Neil Hurley
Given the increasing popularity of algorithms for overlapping clustering, in particular in social network analysis, quantitative measures are needed to measure the accuracy of a method.
Physics and Society Social and Information Networks Data Analysis, Statistics and Probability