Nik Khadijah Nik Aznan

ORCID: 0000-0002-9469-6306
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About
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Research Areas
  • EEG and Brain-Computer Interfaces
  • Neural dynamics and brain function
  • Advanced Memory and Neural Computing
  • Neuroscience and Neural Engineering
  • Gaze Tracking and Assistive Technology
  • Video Surveillance and Tracking Methods
  • Machine Learning in Materials Science
  • X-ray Diffraction in Crystallography
  • Blind Source Separation Techniques
  • IoT-based Smart Home Systems
  • Advanced Neural Network Applications
  • X-ray Spectroscopy and Fluorescence Analysis
  • Human Mobility and Location-Based Analysis
  • Water Quality Monitoring Technologies
  • Energy Efficient Wireless Sensor Networks
  • Anomaly Detection Techniques and Applications
  • COVID-19 diagnosis using AI
  • Advanced X-ray and CT Imaging
  • Electron and X-Ray Spectroscopy Techniques

Newcastle University
2022-2023

Durham University
2018-2021

Kumoh National Institute of Technology
2013-2016

In this paper, we propose a novel Convolutional Neural Network (CNN) approach for the classification of raw dry-EEG signals without any data pre-processing. To illustrate effectiveness our approach, utilise Steady State Visual Evoked Potential (SSVEP) paradigm as use case. SSVEP can be utilised to allow people with severe physical disabilities such Complete Locked-In Syndrome or Amyotrophic Lateral Sclerosis aided via BCI applications, it requires only subject fixate upon sensory stimuli...

10.1109/smc.2018.00631 article EN 2022 IEEE International Conference on Systems, Man, and Cybernetics (SMC) 2018-10-01

Despite significant recent progress in the area of Brain-Computer Interface (BCI), there are numerous shortcomings associated with collecting Electroencephalography (EEG) signals real-world environments. These include, but not limited to, subject and session data variance, long arduous calibration processes predictive generalisation issues across different subjects or sessions. This implies that many downstream applications, including Steady State Visual Evoked Potential (SSVEP) based...

10.1109/ijcnn.2019.8852227 article EN 2022 International Joint Conference on Neural Networks (IJCNN) 2019-07-01

Brain-computer interfaces (BCI) harnessing steady state visual evoked potentials (SSVEPs) manipulate the frequency and phase of stimuli to generate predictable oscillations in neural activity. For BCI spellers, are matched with alphanumeric characters allowing users select target numbers letters. Advances spellers can, part, be accredited subject-specific optimization, including; 1) custom electrode arrangements; 2) filter sub-band assessments; 3) stimulus parameter tuning. Here, we apply...

10.1109/tnsre.2019.2904791 article EN IEEE Transactions on Neural Systems and Rehabilitation Engineering 2019-03-13

This paper addresses the challenge of humanoid robot teleoperation in a natural indoor environment via Brain-Computer Interface (BCI). We leverage deep Convolutional Neural Network (CNN) based image and signal understanding to facilitate both real-time bject detection dry-Electroencephalography (EEG) human cortical brain bio-signals decoding. employ recent advances dry-EEG technology stream collect waveforms from subjects while they fixate on variable Steady State Visual Evoked Potential...

10.1109/icra.2019.8794060 article EN 2022 International Conference on Robotics and Automation (ICRA) 2019-05-01

A machine learning model capable of extracting structural information from XANES spectra is introduced. This approach, analogous to a Fourier transform EXAFS spectra, can predict first coordination shell bond-lengths with median error 0.1 Å.

10.1039/d3dd00101f article EN cc-by Digital Discovery 2023-01-01

We demonstrate uncertainty quantification for deep neural network predictions of transition metal X-ray absorption near-edge structure spectra. Our results not only provide accurate spectral predictions, but reliably assess when the model fails.

10.1039/d3cc01988h article EN cc-by Chemical Communications 2023-01-01

Human imagination and intention can be read by using the Electroencephalography(EEG)-Based Brain Computer Interface(BCI) for Motor Imagery. The systems reads human brain which consists of left or right imaginary movement decide actual movement. It is useful especially disable people to help their daily life. But signals include unwanted other features together with signal. challenges are remove extract accurate feature classify signal accurately best classification method. This paper applied...

10.1109/ictc.2013.6675451 article EN 2013-10-01

Recently, substantial progress has been made in the area of Brain-Computer Interface (BCI) using modern machine learning techniques to decode and interpret brain signals. While Electroencephalography (EEG) provided a non-invasive method interfacing with human brain, acquired data is often heavily subject session dependent. This makes seamless incorporation such into realworld applications intractable as variance can lead long tedious calibration requirements cross-subject generalisation...

10.1109/icpr48806.2021.9411994 article EN 2022 26th International Conference on Pattern Recognition (ICPR) 2021-01-10

This paper presents the unscented Kalman filter (UKF) to BCI signal processing classify EEG-based motor imagery signals. UKF is applied common spatio-spectral pattern (CSSP) filters improve feature data extracted from system. The CSSP used extract related features by applying spatial and spectral Linear discriminant analysis (LDA) as classification method discriminate between class 1 (left hand) 2 (right in performance criteria of results are accuracy, kappa value, training time confidence...

10.1504/ijict.2016.079962 article EN International Journal of Information and Communication Technology 2016-01-01

This paper presents the unscented Kalman filter (UKF) to BCI signal processing classify EEG-based motor imagery signals. UKF is applied common spatio-spectral pattern (CSSP) filters improve feature data extracted from system. The CSSP used extract related features by applying spatial and spectral Linear discriminant analysis (LDA) as classification method discriminate between class 1 (left hand) 2 (right in performance criteria of results are accuracy, kappa value, training time confidence...

10.1504/ijict.2016.10000493 article EN International Journal of Information and Communication Technology 2016-01-01

Social distancing in public spaces has become an essential aspect helping to reduce the impact of COVID-19 pandemic. Exploiting recent advances machine learning, there have been many studies literature implementing social via object detection through use surveillance cameras spaces. However, date, no study distance measurement on transport. The transport setting some unique challenges, including low-resolution images and camera locations that can lead partial occlusion passengers, which make...

10.48550/arxiv.2202.06639 preprint EN other-oa arXiv (Cornell University) 2022-01-01

Recently, substantial progress has been made in the area of Brain-Computer Interface (BCI) using modern machine learning techniques to decode and interpret brain signals. While Electroencephalography (EEG) provided a non-invasive method interfacing with human brain, acquired data is often heavily subject session dependent. This makes seamless incorporation such into real-world applications intractable as variance can lead long tedious calibration requirements cross-subject generalisation...

10.48550/arxiv.2007.11544 preprint EN other-oa arXiv (Cornell University) 2020-01-01

Social distancing in public spaces has become an essential aspect helping to reduce the impact of COVID-19 pandemic. Exploiting recent advances machine learning, there have been many studies literature implementing social via object detection through use surveillance cameras spaces. However, no study distance measurement on transport date. The setting some unique challenges, including low-resolution images and physical camera locations that can lead partial occlusion passengers, making it...

10.1109/ijcnn55064.2022.9891955 article EN 2022 International Joint Conference on Neural Networks (IJCNN) 2022-07-18

Passenger behaviour on public transport has become a source of great interest in the wake COVID-19 pandemic. Operators are interested employing new methods to monitor vehicle utilisation and passenger behaviour. One way do this is through use Machine Learning, using CCTV footage that already being captured from vehicles. However, one limitations Learning it requires large amounts annotated training data, which not always available. In poster, we present technique uses 3D models generate...

10.1109/escience55777.2022.00053 article EN 2022-10-01
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