1
|
Bhadra R, Singh PK, Mahmud M. HyEpiSeiD: a hybrid convolutional neural network and gated recurrent unit model for epileptic seizure detection from electroencephalogram signals. Brain Inform 2024; 11:21. [PMID: 39167115 PMCID: PMC11339197 DOI: 10.1186/s40708-024-00234-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Accepted: 07/24/2024] [Indexed: 08/23/2024] Open
Abstract
Epileptic seizure (ES) detection is an active research area, that aims at patient-specific ES detection with high accuracy from electroencephalogram (EEG) signals. The early detection of seizure is crucial for timely medical intervention and prevention of further injuries of the patients. This work proposes a robust deep learning framework called HyEpiSeiD that extracts self-trained features from the pre-processed EEG signals using a hybrid combination of convolutional neural network followed by two gated recurrent unit layers and performs prediction based on those extracted features. The proposed HyEpiSeiD framework is evaluated on two public datasets, the UCI Epilepsy and Mendeley datasets. The proposed HyEpiSeiD model achieved 99.01% and 97.50% classification accuracy, respectively, outperforming most of the state-of-the-art methods in epilepsy detection domain.
Collapse
Affiliation(s)
- Rajdeep Bhadra
- Department of Information Technology, Jadavpur University, Jadavpur University Second Campus, Plot No. 8, Salt Lake Bypass, LB Block, Sector III, Salt Lake City, 700 106, Kolkata, West Bengal, India
| | - Pawan Kumar Singh
- Department of Information Technology, Jadavpur University, Jadavpur University Second Campus, Plot No. 8, Salt Lake Bypass, LB Block, Sector III, Salt Lake City, 700 106, Kolkata, West Bengal, India
- Metharath University, 99, Moo 10, Bang Toei, Sam Khok, 12160, Pathum Thani, Thailand
| | - Mufti Mahmud
- Department of Computer Science, Nottingham Trent University, Nottingham, NG11 8NS, UK.
- Medical Technologies Innovation Facility, Nottingham Trent University, Nottingham, NG11 8NS, UK.
- Computing and Informatics Research Centre, Nottingham Trent University, Nottingham, NG11 8NS, UK.
| |
Collapse
|
2
|
Vimbi V, Shaffi N, Mahmud M. Interpreting artificial intelligence models: a systematic review on the application of LIME and SHAP in Alzheimer's disease detection. Brain Inform 2024; 11:10. [PMID: 38578524 PMCID: PMC10997568 DOI: 10.1186/s40708-024-00222-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 03/04/2024] [Indexed: 04/06/2024] Open
Abstract
Explainable artificial intelligence (XAI) has gained much interest in recent years for its ability to explain the complex decision-making process of machine learning (ML) and deep learning (DL) models. The Local Interpretable Model-agnostic Explanations (LIME) and Shaply Additive exPlanation (SHAP) frameworks have grown as popular interpretive tools for ML and DL models. This article provides a systematic review of the application of LIME and SHAP in interpreting the detection of Alzheimer's disease (AD). Adhering to PRISMA and Kitchenham's guidelines, we identified 23 relevant articles and investigated these frameworks' prospective capabilities, benefits, and challenges in depth. The results emphasise XAI's crucial role in strengthening the trustworthiness of AI-based AD predictions. This review aims to provide fundamental capabilities of LIME and SHAP XAI frameworks in enhancing fidelity within clinical decision support systems for AD prognosis.
Collapse
Affiliation(s)
- Viswan Vimbi
- College of Computing and Information Sciences, University of Technology and Applied Sciences, OM 311, Sohar, Sultanate of Oman
| | - Noushath Shaffi
- College of Computing and Information Sciences, University of Technology and Applied Sciences, OM 311, Sohar, Sultanate of Oman
| | - Mufti Mahmud
- Department of Computer Science, Nottingham Trent University, Nottingham, NG11 8NS, UK.
- Medical Technologies Innovation Facility, Nottingham Trent University, Nottingham, NG11 8NS, UK.
- Computing and Informatics Research Centre, Nottingham Trent University, Nottingham, NG11 8NS, UK.
| |
Collapse
|
3
|
Rahman MA, Brown DJ, Mahmud M, Harris M, Shopland N, Heym N, Sumich A, Turabee ZB, Standen B, Downes D, Xing Y, Thomas C, Haddick S, Premkumar P, Nastase S, Burton A, Lewis J. Enhancing biofeedback-driven self-guided virtual reality exposure therapy through arousal detection from multimodal data using machine learning. Brain Inform 2023; 10:14. [PMID: 37341863 DOI: 10.1186/s40708-023-00193-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 05/15/2023] [Indexed: 06/22/2023] Open
Abstract
Virtual reality exposure therapy (VRET) is a novel intervention technique that allows individuals to experience anxiety-evoking stimuli in a safe environment, recognise specific triggers and gradually increase their exposure to perceived threats. Public-speaking anxiety (PSA) is a prevalent form of social anxiety, characterised by stressful arousal and anxiety generated when presenting to an audience. In self-guided VRET, participants can gradually increase their tolerance to exposure and reduce anxiety-induced arousal and PSA over time. However, creating such a VR environment and determining physiological indices of anxiety-induced arousal or distress is an open challenge. Environment modelling, character creation and animation, psychological state determination and the use of machine learning (ML) models for anxiety or stress detection are equally important, and multi-disciplinary expertise is required. In this work, we have explored a series of ML models with publicly available data sets (using electroencephalogram and heart rate variability) to predict arousal states. If we can detect anxiety-induced arousal, we can trigger calming activities to allow individuals to cope with and overcome distress. Here, we discuss the means of effective selection of ML models and parameters in arousal detection. We propose a pipeline to overcome the model selection problem with different parameter settings in the context of virtual reality exposure therapy. This pipeline can be extended to other domains of interest where arousal detection is crucial. Finally, we have implemented a biofeedback framework for VRET where we successfully provided feedback as a form of heart rate and brain laterality index from our acquired multimodal data for psychological intervention to overcome anxiety.
Collapse
Affiliation(s)
- Muhammad Arifur Rahman
- Department of Computer Science, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - David J Brown
- Department of Computer Science, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - Mufti Mahmud
- Department of Computer Science, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK.
- Medical Technologies Innovation Facility, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK.
- Computing and Informatics Research Centre, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK.
| | - Matthew Harris
- Department of Computer Science, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - Nicholas Shopland
- Department of Computer Science, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - Nadja Heym
- School of Social Sciences, Nottingham Trent University, Shakespeare St, Nottingham, NG1 4FQ, UK
| | - Alexander Sumich
- School of Social Sciences, Nottingham Trent University, Shakespeare St, Nottingham, NG1 4FQ, UK
| | - Zakia Batool Turabee
- School of Social Sciences, Nottingham Trent University, Shakespeare St, Nottingham, NG1 4FQ, UK
| | - Bradley Standen
- Department of Computer Science, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - David Downes
- Nottingham School of Art & Design, Nottingham Trent University, Shakespeare St, Nottingham, NG1 4FQ, UK
| | - Yangang Xing
- School of ADBE, Nottingham Trent University, Shakespeare St, Nottingham, NG1 4FQ, UK
| | - Carolyn Thomas
- Nottingham School of Art & Design, Nottingham Trent University, Shakespeare St, Nottingham, NG1 4FQ, UK
| | - Sean Haddick
- Department of Computer Science, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - Preethi Premkumar
- Division of Psychology, London South Bank University, London, SE1 0AA, UK
| | | | - Andrew Burton
- Department of Computer Science, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - James Lewis
- Department of Computer Science, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| |
Collapse
|
4
|
Hajamohideen F, Shaffi N, Mahmud M, Subramanian K, Al Sariri A, Vimbi V, Abdesselam A. Four-way classification of Alzheimer's disease using deep Siamese convolutional neural network with triplet-loss function. Brain Inform 2023; 10:5. [PMID: 36806042 PMCID: PMC9937523 DOI: 10.1186/s40708-023-00184-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/03/2023] [Indexed: 02/19/2023] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease that causes irreversible damage to several brain regions, including the hippocampus causing impairment in cognition, function, and behaviour. Early diagnosis of the disease will reduce the suffering of the patients and their family members. Towards this aim, in this paper, we propose a Siamese Convolutional Neural Network (SCNN) architecture that employs the triplet-loss function for the representation of input MRI images as k-dimensional embeddings. We used both pre-trained and non-pretrained CNNs to transform images into the embedding space. These embeddings are subsequently used for the 4-way classification of Alzheimer's disease. The model efficacy was tested using the ADNI and OASIS datasets which produced an accuracy of 91.83% and 93.85%, respectively. Furthermore, obtained results are compared with similar methods proposed in the literature.
Collapse
Affiliation(s)
- Faizal Hajamohideen
- College of Computing and Information Sciences, University of Technology and Applied Sciences, Jamia Street, 311 Sohar, Sultanate of Oman
| | - Noushath Shaffi
- College of Computing and Information Sciences, University of Technology and Applied Sciences, Jamia Street, 311 Sohar, Sultanate of Oman
| | - Mufti Mahmud
- Department of Computer Science, Nottingham Trent University, Clifton Lane, NG11 8NS Nottingham, UK
- Medical Technologies Innovation Facility, Nottingham Trent University, Clifton Lane, NG11 8NS Nottingham, UK
- Computing and Informatics Research Centre, Nottingham Trent University, Clifton Lane, NG11 8NS Nottingham, UK
| | - Karthikeyan Subramanian
- College of Computing and Information Sciences, University of Technology and Applied Sciences, Jamia Street, 311 Sohar, Sultanate of Oman
| | - Arwa Al Sariri
- College of Computing and Information Sciences, University of Technology and Applied Sciences, Jamia Street, 311 Sohar, Sultanate of Oman
| | - Viswan Vimbi
- College of Computing and Information Sciences, University of Technology and Applied Sciences, Jamia Street, 311 Sohar, Sultanate of Oman
| | - Abdelhamid Abdesselam
- Department of Computer Science, Sultan Qaboos University, 123 Muscat, Sultanate of Oman
| | - for the Alzheimer’s Disease Neuroimaging Initiative
- College of Computing and Information Sciences, University of Technology and Applied Sciences, Jamia Street, 311 Sohar, Sultanate of Oman
- Department of Computer Science, Nottingham Trent University, Clifton Lane, NG11 8NS Nottingham, UK
- Medical Technologies Innovation Facility, Nottingham Trent University, Clifton Lane, NG11 8NS Nottingham, UK
- Computing and Informatics Research Centre, Nottingham Trent University, Clifton Lane, NG11 8NS Nottingham, UK
- Department of Computer Science, Sultan Qaboos University, 123 Muscat, Sultanate of Oman
| |
Collapse
|