Search Results for author: Noura Al Moubayed

Found 31 papers, 17 papers with code

Generating Textual Explanations for Machine Learning Models Performance: A Table-to-Text Task

no code implementations LREC 2022 Isaac Ampomah, James Burton, Amir Enshaei, Noura Al Moubayed

This paper proposes a new natural language generation (NLG) task where neural models are trained to generate textual explanations, analytically describing the classification performance of ML models based on the metrics’ scores reported in the tables.

Classification Data-to-Text Generation

RAR-b: Reasoning as Retrieval Benchmark

1 code implementation9 Apr 2024 Chenghao Xiao, G Thomas Hudson, Noura Al Moubayed

Under the emerging Retrieval-augmented Generation (RAG) paradigm, we envision the need to evaluate next-level language understanding abilities of embedding models, and take a conscious look at the reasoning abilities stored in them.

Information Retrieval Retrieval +1

Disentangling Racial Phenotypes: Fine-Grained Control of Race-related Facial Phenotype Characteristics

no code implementations29 Mar 2024 Seyma Yucer, Amir Atapour Abarghouei, Noura Al Moubayed, Toby P. Breckon

Achieving an effective fine-grained appearance variation over 2D facial images, whilst preserving facial identity, is a challenging task due to the high complexity and entanglement of common 2D facial feature encoding spaces.

Disentanglement

Textual Localization: Decomposing Multi-concept Images for Subject-Driven Text-to-Image Generation

1 code implementation15 Feb 2024 Junjie Shentu, Matthew Watson, Noura Al Moubayed

Subject-driven text-to-image diffusion models empower users to tailor the model to new concepts absent in the pre-training dataset using a few sample images.

Text-to-Image Generation

Pixel Sentence Representation Learning

1 code implementation13 Feb 2024 Chenghao Xiao, Zhuoxu Huang, Danlu Chen, G Thomas Hudson, Yizhi Li, Haoran Duan, Chenghua Lin, Jie Fu, Jungong Han, Noura Al Moubayed

To our knowledge, this is the first representation learning method devoid of traditional language models for understanding sentence and document semantics, marking a stride closer to human-like textual comprehension.

Natural Language Inference Representation Learning +3

SciMMIR: Benchmarking Scientific Multi-modal Information Retrieval

1 code implementation24 Jan 2024 Siwei Wu, Yizhi Li, Kang Zhu, Ge Zhang, Yiming Liang, Kaijing Ma, Chenghao Xiao, Haoran Zhang, Bohao Yang, Wenhu Chen, Wenhao Huang, Noura Al Moubayed, Jie Fu, Chenghua Lin

We further annotate the image-text pairs with two-level subset-subcategory hierarchy annotations to facilitate a more comprehensive evaluation of the baselines.

Benchmarking Image Captioning +3

Length is a Curse and a Blessing for Document-level Semantics

1 code implementation24 Oct 2023 Chenghao Xiao, Yizhi Li, G Thomas Hudson, Chenghua Lin, Noura Al Moubayed

In recent years, contrastive learning (CL) has been extensively utilized to recover sentence and document-level encoding capability from pre-trained language models.

Contrastive Learning Information Retrieval +3

Audio Contrastive based Fine-tuning

no code implementations21 Sep 2023 Yang Wang, Qibin Liang, Chenghao Xiao, Yizhi Li, Noura Al Moubayed, Chenghua Lin

Audio classification plays a crucial role in speech and sound processing tasks with a wide range of applications.

Audio Classification Contrastive Learning

Racial Bias within Face Recognition: A Survey

no code implementations1 May 2023 Seyma Yucer, Furkan Tektas, Noura Al Moubayed, Toby P. Breckon

Facial recognition is one of the most academically studied and industrially developed areas within computer vision where we readily find associated applications deployed globally.

Face Recognition Face Verification

Language as a Latent Sequence: deep latent variable models for semi-supervised paraphrase generation

1 code implementation5 Jan 2023 Jialin Yu, Alexandra I. Cristea, Anoushka Harit, Zhongtian Sun, Olanrewaju Tahir Aduragba, Lei Shi, Noura Al Moubayed

To leverage information from text pairs, we additionally introduce a novel supervised model we call dual directional learning (DDL), which is designed to integrate with our proposed VSAR model.

Paraphrase Generation

On Isotropy, Contextualization and Learning Dynamics of Contrastive-based Sentence Representation Learning

1 code implementation18 Dec 2022 Chenghao Xiao, Yang Long, Noura Al Moubayed

In this paper, we aim to help guide future designs of sentence representation learning methods by taking a closer look at contrastive SRL through the lens of isotropy, contextualization and learning dynamics.

Contrastive Learning Representation Learning +2

INTERACTION: A Generative XAI Framework for Natural Language Inference Explanations

no code implementations2 Sep 2022 Jialin Yu, Alexandra I. Cristea, Anoushka Harit, Zhongtian Sun, Olanrewaju Tahir Aduragba, Lei Shi, Noura Al Moubayed

XAI with natural language processing aims to produce human-readable explanations as evidence for AI decision-making, which addresses explainability and transparency.

Decision Making Explainable Artificial Intelligence (XAI) +2

Does lossy image compression affect racial bias within face recognition?

no code implementations16 Aug 2022 Seyma Yucer, Matt Poyser, Noura Al Moubayed, Toby P. Breckon

Yes - This study investigates the impact of commonplace lossy image compression on face recognition algorithms with regard to the racial characteristics of the subject.

Face Recognition Image Compression

Towards Graph Representation Learning Based Surgical Workflow Anticipation

1 code implementation7 Aug 2022 Xiatian Zhang, Noura Al Moubayed, Hubert P. H. Shum

Hence, we propose a graph representation learning framework to comprehensively represent instrument motions in the surgical workflow anticipation problem.

Graph Representation Learning

Using Orientation to Distinguish Overlapping Chromosomes

1 code implementation24 Mar 2022 Daniel Kluvanec, Thomas B. Phillips, Kenneth J. W. McCaffrey, Noura Al Moubayed

Instead, we separate the chromosome instances in a second stage, predicting the orientation of the chromosomes by the model and use it as one of the key distinguishing factors of the chromosomes.

Semantic Segmentation

MuLD: The Multitask Long Document Benchmark

1 code implementation LREC 2022 G Thomas Hudson, Noura Al Moubayed

The impressive progress in NLP techniques has been driven by the development of multi-task benchmarks such as GLUE and SuperGLUE.

Question Answering Style change detection +3

Ask me in your own words: paraphrasing for multitask question answering

1 code implementation PeerJ Computer Science 2021 G. Thomas Hudson​, Noura Al Moubayed

Multitask learning has led to significant advances in Natural Language Processing, including the decaNLP benchmark where question answering is used to frame 10 natural language understanding tasks in a single model.

Natural Language Understanding Paraphrase Generation +2

Measuring Hidden Bias within Face Recognition via Racial Phenotypes

1 code implementation19 Oct 2021 Seyma Yucer, Furkan Tektas, Noura Al Moubayed, Toby P. Breckon

We use the set of observable characteristics of an individual face where a race-related facial phenotype is hence specific to the human face and correlated to the racial profile of the subject.

Attribute Face Identification +2

ExBERT: An External Knowledge Enhanced BERT for Natural Language Inference

no code implementations3 Aug 2021 Amit Gajbhiye, Noura Al Moubayed, Steven Bradley

We introduce a new model for NLI called External Knowledge Enhanced BERT (ExBERT), to enrich the contextual representation with real-world commonsense knowledge from external knowledge sources and enhance BERT's language understanding and reasoning capabilities.

Knowledge Graphs Natural Language Inference

Towards Equal Gender Representation in the Annotations of Toxic Language Detection

no code implementations ACL (GeBNLP) 2021 Elizabeth Excell, Noura Al Moubayed

We then apply the learned associations between gender and language to toxic language classifiers, finding that models trained exclusively on female-annotated data perform 1. 8% better than those trained solely on male-annotated data and that training models on data after removing all offensive words reduces bias in the model by 55. 5% while increasing the sensitivity by 0. 4%.

Fairness

Agree to Disagree: When Deep Learning Models With Identical Architectures Produce Distinct Explanations

1 code implementation14 May 2021 Matthew Watson, Bashar Awwad Shiekh Hasan, Noura Al Moubayed

Deep Learning of neural networks has progressively become more prominent in healthcare with models reaching, or even surpassing, expert accuracy levels.

Attack-agnostic Adversarial Detection on Medical Data Using Explainable Machine Learning

1 code implementation5 May 2021 Matthew Watson, Noura Al Moubayed

On the MIMIC-III and Henan-Renmin EHR datasets, we report a detection accuracy of 77% against the Longitudinal Adversarial Attack.

Adversarial Attack Anomaly Detection +3

Curvature-based Feature Selection with Application in Classifying Electronic Health Records

1 code implementation10 Jan 2021 Zheming Zuo, Jie Li, Han Xu, Noura Al Moubayed

Disruptive technologies provides unparalleled opportunities to contribute to the identifications of many aspects in pervasive healthcare, from the adoption of the Internet of Things through to Machine Learning (ML) techniques.

Breast Cancer Detection Breast Tissue Identification +4

On Modality Bias in the TVQA Dataset

1 code implementation18 Dec 2020 Thomas Winterbottom, Sarah Xiao, Alistair McLean, Noura Al Moubayed

Our results demonstrate that models trained on only the visual information can answer ~45% of the questions, while using only the subtitles achieves ~68%.

Question Answering Video Question Answering +1

Trying Bilinear Pooling in Video-QA

no code implementations18 Dec 2020 Thomas Winterbottom, Sarah Xiao, Alistair McLean, Noura Al Moubayed

We share our results on the TVQA baseline model, and the recently proposed heterogeneous-memory-enchanced multimodal attention (HME) model.

Question Answering Video Question Answering +1

Simulating Brain Signals: Creating Synthetic EEG Data via Neural-Based Generative Models for Improved SSVEP Classification

1 code implementation15 Jan 2019 Nik Khadijah Nik Aznan, Amir Atapour-Abarghouei, Stephen Bonner, Jason Connolly, Noura Al Moubayed, Toby Breckon

Despite significant recent progress in the area of Brain-Computer Interface (BCI), there are numerous shortcomings associated with collecting Electroencephalography (EEG) signals in real-world environments.

Quantitative Methods Signal Processing

An Exploration of Dropout with RNNs for Natural Language Inference

no code implementations22 Oct 2018 Amit Gajbhiye, Sardar Jaf, Noura Al Moubayed, A. Stephen McGough, Steven Bradley

In this paper, we propose a novel RNN model for NLI and empirically evaluate the effect of applying dropout at different layers in the model.

Natural Language Inference

Using Machine Learning to reduce the energy wasted in Volunteer Computing Environments

no code implementations19 Oct 2018 A. Stephen McGough, Matthew Forshaw, John Brennan, Noura Al Moubayed, Stephen Bonner

We demonstrate, through the use of simulation, how we can reduce this wasted energy by targeting tasks at computers less likely to be needed for primary use, predicting this idle time through machine learning.

BIG-bench Machine Learning

SMS Spam Filtering using Probabilistic Topic Modelling and Stacked Denoising Autoencoder

no code implementations17 Jun 2016 Noura Al Moubayed, Toby Breckon, Peter Matthews, A. Stephen McGough

In This paper we present a novel approach to spam filtering and demonstrate its applicability with respect to SMS messages.

Denoising Spam detection

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