1 code implementation • 26 Jul 2024 • Rian Dolphin, Barry Smyth, Ruihai Dong
In each case our novel approaches significantly outperform existing baselines highlighting the potential for contrastive learning to capture meaningful and actionable relationships in financial data.
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 • 29 Apr 2023 • Rian Dolphin, Barry Smyth, Ruihai Dong
We discuss why time-series data can present some significant representational challenges for conventional case-based reasoning approaches, and in response, we propose a novel representation based on stock returns embeddings, which can be readily calculated from raw stock returns data.
1 code implementation • 28 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.
1 code implementation • 11 Nov 2022 • Rian Dolphin, Barry Smyth, Ruihai Dong
Industry classification schemes provide a taxonomy for segmenting companies based on their business activities.
1 code implementation • 14 Feb 2022 • Rian Dolphin, Barry Smyth, Ruihai Dong
Identifying meaningful relationships between the price movements of financial assets is a challenging but important problem in a variety of financial applications.
no code implementations • 5 Jan 2022 • Linyi Yang, Jiazheng Li, Ruihai Dong, Yue Zhang, Barry Smyth
Financial forecasting has been an important and active area of machine learning research because of the challenges it presents and the potential rewards that even minor improvements in prediction accuracy or forecasting may entail.
no code implementations • 5 Oct 2021 • Mansura A Khan, Khalil Muhammad, Barry Smyth, David Coyle
To develop smart nudging for promoting healthier food choices, we combined Machine Learning and RS technology with food-healthiness guidelines from recognized health organizations, such as the World Health Organization, Food Standards Agency, and the National Health Service United Kingdom.
1 code implementation • 7 Jul 2021 • Rian Dolphin, Barry Smyth, Yang Xu, Ruihai Dong
Forecasting stock returns is a challenging problem due to the highly stochastic nature of the market and the vast array of factors and events that can influence trading volume and prices.
1 code implementation • ACL 2021 • Linyi Yang, Jiazheng Li, Pádraig Cunningham, Yue Zhang, Barry Smyth, Ruihai Dong
While state-of-the-art NLP models have been achieving the excellent performance of a wide range of tasks in recent years, important questions are being raised about their robustness and their underlying sensitivity to systematic biases that may exist in their training and test data.
no code implementations • 29 Jun 2021 • Linyi Yang, Tin Lok James Ng, Barry Smyth, Ruihai Dong
The explosion in the sheer magnitude and complexity of financial news data in recent years makes it increasingly challenging for investment analysts to extract valuable insights and perform analysis.
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).
no code implementations • 8 Apr 2021 • Mohammed Temraz, Eoin Kenny, Elodie Ruelle, Laurence Shalloo, Barry Smyth, Mark T Keane
Climate change poses a major challenge to humanity, especially in its impact on agriculture, a challenge that a responsible AI should meet.
no code implementations • 26 Feb 2021 • Mark T Keane, Eoin M Kenny, Eoin Delaney, Barry Smyth
In recent years, there has been an explosion of AI research on counterfactual explanations as a solution to the problem of eXplainable AI (XAI).
no code implementations • 22 Jan 2021 • Barry Smyth, Mark T Keane
Counterfactual explanations provide a potentially significant solution to the Explainable AI (XAI) problem, but good, native counterfactuals have been shown to rarely occur in most datasets.
no code implementations • COLING 2020 • Linyi Yang, Eoin M. Kenny, Tin Lok James Ng, Yi Yang, Barry Smyth, Ruihai Dong
Corporate mergers and acquisitions (M&A) account for billions of dollars of investment globally every year, and offer an interesting and challenging domain for artificial intelligence.
no code implementations • 26 May 2020 • Mark T. Keane, Barry Smyth
Recently, a groundswell of research has identified the use of counterfactual explanations as a potentially significant solution to the Explainable AI (XAI) problem.
no code implementations • 31 Jul 2019 • Mansura A. Khan, Ellen Rushe, Barry Smyth, David Coyle
This paper proposes two different EnsTM based and one Hybrid EnsTM based recommenders.
no code implementations • 18 Jul 2018 • Joeran Beel, Barry Smyth, Andrew Collins
The main contribution of this paper is to introduce and describe a new recommender-systems dataset (RARD II).