Muhammad Khalis Abdul Karim

Prof. Muhammad Khalis Abdul Karim

Universiti Putra Malaysia
+1
orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 September 2021 in Journal of Personalized Medicine
Verified
Journal Article
Open access
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SRSiti Fairuz Mat Radzi
Siti Fairuz Mat Radzi
Muhammad Khalis Abdul KarimMuhammad Khalis Abdul Karim
Muhammad Khalis Abdul Karim
MSM. Iqbal Saripan
M. Iqbal Saripan
Mohd Amiruddin Abd RahmanMohd Amiruddin Abd Rahman
Mohd Amiruddin Abd Rahman
IIIza Nurzawani Che Isa
Iza Nurzawani Che Isa
MIMohammad Johari Johari Ibahim
Mohammad Johari Johari Ibahim
Automated machine learning (AutoML) has been recognized as a powerful tool to build a system that automates the design and optimizes the model selection machine learning (ML) pipelines. In this study, we present a tree-based pipeline optimization tool (TPOT) as a method for determining ML models with significant performance and less complex breast cancer diagnostic pipelines. Some features of pre-processors and ML models are defined as expression trees and optimal gene programming (GP) pipelines, a stochastic search system. Features of radiomics have been presented as a guide for the ML pipeline selection from the breast cancer data set based on TPOT. Breast cancer data were used in a comparative analysis of the TPOT-generated ML pipelines with the selected ML classifiers, optimized by a grid search approach. The principal component analysis (PCA) random forest (RF) classification was proven to be the most reliable pipeline with the lowest complexity. The TPOT model selection technique exceeded the performance of grid search (GS) optimization. The RF classifier showed an outstanding outcome amongst the models in combination with only two pre-processors, with a precision of 0.83. The grid search optimized for support vector machine (SVM) classifiers generated a difference of 12% in comparison, while the other two classifiers, naïve Bayes (NB) and artificial neural network—multilayer perceptron (ANN-MLP), generated a difference of almost 39%. The method’s performance was based on sensitivity, specificity, accuracy, precision, and receiver operating curve (ROC) analysis.

1 September 2016 in Journal of Luminescence
Verified
Journal Article
Closed access
MMMohammad Hasan Abu Mhareb
Mohammad Hasan Abu Mhareb
SHS. Hashim
S. Hashim
SGS.K. Ghoshal
S.K. Ghoshal
YAY.S.M. Alajerami
Y.S.M. Alajerami
MBM.J. Bqoor
M.J. Bqoor
Muhammad Khalis Abdul KarimMuhammad Khalis Abdul Karim
Muhammad Khalis Abdul Karim

15 November 2021 in Applied Sciences
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Journal Article
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AHAhmad Ashraf Bin Abdul Halim
Ahmad Ashraf Bin Abdul Halim
AAAllan Melvin Andrew
Allan Melvin Andrew
Mohd Najib Mohd YasinMohd Najib Mohd Yasin
Mohd Najib Mohd Yasin
Mohd Amiruddin Abd RahmanMohd Amiruddin Abd Rahman
Mohd Amiruddin Abd Rahman
MJmuzammil jusoh
muzammil jusoh
ESEdgar Scavino
Edgar Scavino
Breast cancer is the most leading cancer occurring in women and is a significant factor in female mortality. Early diagnosis of breast cancer with Artificial Intelligent (AI) developments for breast cancer detection can lead to a proper treatment to affected patients as early as possible that eventually help reduce the women mortality rate. Reliability issues limit the current clinical detection techniques, such as Ultra-Sound, Mammography, and Magnetic Resonance Imaging (MRI) from screening images for precise elucidation. The capability to detect a tumor in early diagnosis, expensive, relatively long waiting time due to pandemic and painful procedure for a patient to perform. This article aims to review breast cancer screening methods and recent technological advancements systematically. In addition, this paper intends to explore the progression and challenges of AI in breast cancer detection. The next state of the art between image and signal processing will be presented, and their performance is compared. This review will facilitate the researcher to insight the view of breast cancer detection technologies advancement and its challenges.

19 November 2020 in Applied Sciences
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OAOSAMA ALJEWAW
OSAMA ALJEWAW
Muhammad Khalis Abdul KarimMuhammad Khalis Abdul Karim
Muhammad Khalis Abdul Karim
HKHalimah Mohamed kamari
Halimah Mohamed kamari
MZMohd Hafiz Mohd Zaid
Mohd Hafiz Mohd Zaid
NNNoramaliza Mohd Noor
Noramaliza Mohd Noor
MMMohammad Hasan Abu Mhareb
Mohammad Hasan Abu Mhareb
In this study, a series of Li2O-Al2O3-B2O3 glasses doped with various concentrations of Dy2O3 (where x = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0 mol%) were prepared by using a conventional melt-quenching technique. The structural, physical and optical properties of the glasses were examined by utilising a variety of techniques instance, X-ray diffraction (XRD), UV–Vis-NIR spectrometer, Fourier transform infrared (FTIR) and photoluminescence (PL). The XRD spectra demonstrate the amorphous phase of all glasses. Furthermore, the UV-vis-NIR spectrometers have registered optical absorption spectra a numbers of peaks which exist at 1703, 1271, 1095, 902, 841, 802, 669, 458, 393 and 352 nm congruous to the transitions from the ground of state (6H15/2) to different excited states, 6H11/2, 6F11/2 + 6H9/2, 6F9/2 + 6H7/2, 6F7/2, 6F5/2, 6F3/2, 4F9/2, 4I15/2, 4F7/2 and 6P7/2, respectively. The spectra of emission exhibit two strong emanation bands at 481 nm and 575 nm in the visible region, which correspond to the transitions 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2. All prepared glass samples doped with Dy2O3 show an increase in the emission intensity with an increase in the concentration of Dy3+. Based on the obtained results, the aforementioned glass samples may have possible applications, such as optical sensor and laser applications.

1 January 2022 in Journal of Non-Crystalline Solids
Verified
Journal Article
Closed access
OAOsama Bagi Aljewaw
Osama Bagi Aljewaw
Muhammad Khalis Abdul KarimMuhammad Khalis Abdul Karim
Muhammad Khalis Abdul Karim
HKHalimah Mohamed Kamari
Halimah Mohamed Kamari
MZMohd Hafiz Mohd Zaid
Mohd Hafiz Mohd Zaid
ASAli Aqeel Salim
Ali Aqeel Salim
MMMohammad Hasan Abu Mhareb
Mohammad Hasan Abu Mhareb

14 August 2020 in Diagnostics
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Journal Article
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NMNOR AZURA MUHAMMAD
NOR AZURA MUHAMMAD
Muhammad Khalis Abdul KarimMuhammad Khalis Abdul Karim
Muhammad Khalis Abdul Karim
HHHasyma Abu HassN
Hasyma Abu HassN
MKMazliana Ahmad Kamarudin
Mazliana Ahmad Kamarudin
JWJeannie Hsiu Ding Wong
Jeannie Hsiu Ding Wong
KNKwan Hoong Ng
Kwan Hoong Ng
Pediatrics are more vulnerable to radiation and are prone to dose compared to adults, requiring more attention to computed tomography (CT) optimization. Hence, diagnostic reference levels (DRLs) have been implemented as part of optimization process in order to monitor CT dose and diagnostic quality. The noise index has recently been endorsed to be included as a part of CT optimization in the DRLs report. In this study, we have therefore set local DRLs for pediatric CT examination with a noise index as an indicator of image quality. One thousand one hundred and ninety-two (1192) paediatric patients undergoing CT brain, CT thorax and CT chest-abdomen-pelvis (CAP) examinations were analyzed retrospectively and categorized into four age groups; group 1 (0–1 year), group 2 (1–5 years), group 3 (5–10 years) and group 4 (10–15 years). For each group, data such as the volume-weighted CT dose index (CTDIvol), dose-length product (DLP) and the effective dose (E) were calculated and DRLs for each age group set at 50th percentile were determined. Both CT dose and image noise values between age groups have differed significantly with p-value < 0.05. The highest CTDIvol and DLP values in all age groups with the lowest noise index value reported in the 10–15 age group were found in CT brain examination. In conclusion, there was a significant variation in doses and noise intensity among children of different ages, and the need to change specific parameters to fit the clinical requirement.