Search Results for author: Barry Smyth

Found 19 papers, 7 papers with code

Contrastive Learning of Asset Embeddings from Financial Time Series

1 code implementation26 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.

Contrastive Learning Management +3

Facilitating Interdisciplinary Knowledge Transfer with Research Paper Recommender Systems

1 code implementation26 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.

Diversity Document Embedding +2

Industry Classification Using a Novel Financial Time-Series Case Representation

no code implementations29 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.

Classification Time Series

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

A Multimodal Embedding-Based Approach to Industry Classification in Financial Markets

1 code implementation11 Nov 2022 Rian Dolphin, Barry Smyth, Ruihai Dong

Industry classification schemes provide a taxonomy for segmenting companies based on their business activities.

Classification

Stock Embeddings: Learning Distributed Representations for Financial Assets

1 code implementation14 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.

NumHTML: Numeric-Oriented Hierarchical Transformer Model for Multi-task Financial Forecasting

no code implementations5 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.

Investigating Health-Aware Smart-Nudging with Machine Learning to Help People Pursue Healthier Eating-Habits

no code implementations5 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.

Decision Making Recommendation Systems

Measuring Financial Time Series Similarity With a View to Identifying Profitable Stock Market Opportunities

1 code implementation7 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.

Future prediction Stock Prediction +2

Exploring the Efficacy of Automatically Generated Counterfactuals for Sentiment Analysis

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.

counterfactual Data Augmentation +1

Fact Check: Analyzing Financial Events from Multilingual News Sources

no code implementations29 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.

Clustering

Twin Systems for DeepCBR: A Menagerie of Deep Learning and Case-Based Reasoning Pairings for Explanation and Data Augmentation

no code implementations29 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).

counterfactual Data Augmentation +2

A Few Good Counterfactuals: Generating Interpretable, Plausible and Diverse Counterfactual Explanations

no code implementations22 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.

counterfactual Diversity +2

Generating Plausible Counterfactual Explanations for Deep Transformers in Financial Text Classification

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.

counterfactual Explainable Artificial Intelligence (XAI) +3

Good Counterfactuals and Where to Find Them: A Case-Based Technique for Generating Counterfactuals for Explainable AI (XAI)

no code implementations26 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.

counterfactual Explainable Artificial Intelligence (XAI)

RARD II: The 94 Million Related-Article Recommendation Dataset

no code implementations18 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).

Management Meta-Learning +1

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