publications
my research focuses on deep learning for biomedical applications, particularly natural language processing for biomedical text and medical image analysis.
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2026
- Conference PaperZurida Ishak, Mohd Hafizul Afifi Abdullah, Tang Xu Ying, and 3 more authorsIn 2026 7th International Conference on Artificial Intelligence and Data Sciences (AiDAS)
The Malaysian palm oil industry is experiencing a sustainability challenge brought about by the global market that requires traceability, transparent, and circular supply chains. Blockchain Technology (BCT) is extensively promoted as one of the major facilitators of supply chain integrity and Circular Economy (CE) integration. The areas prepared to adopt BCT, however, are not well comprehended especially through the lens of the top management which ultimately decides on technology adoption strategies. This paper suggests a combined Technology-Organization-Environment-Human (TOE-HOT) preparedness model to assess block-chain implementation in palm oil supply chain in Malaysia. Due to limited access to palm oil industry stakeholders, secondary data were used from previously published interviews with supply chain professionals. Twelve readiness factors were found, validated, and ranked using Natural Language Processing (NLP), Fuzzy Delphi Method (FDM), and Best Worst Method (BWM). To enhance decision-making accuracy, the AI-driven NLP approach will systematically extracting, categorising, and quantifying key readiness factors from unstructured textual data. The FDM and BWM used to strengthen the validation and prioritisation process. The proposed AI-assisted framework is using NLP to analyze unstructured textual evidence, thus reducing subjectivity to improve the reliability and consistency of the readiness assessment. The dominant themes of the NLP results were transparency, traceability, and security, whereas the most significant readiness factor was traceability identified in the BWM analysis. The policymakers can use the proposed framework as a practical guideline to formulate blockchain adoption strategies and digital transformation policies. Industry practitioners will benefit the policies to identify readiness gaps, prioritise strategic investments, and improve organisational preparedness for blockchain-enabled circular economy initiatives.
@inproceedings{11712790, author = {Ishak, Zurida and Abdullah, Mohd Hafizul Afifi and Ying, Tang Xu and Idris, Aizal Yusrina and Khamis, Shakiroh and Zolkafly, Ahmad Subhi}, title = {Assessing Blockchain Readiness for Circular Economy Integration in the Malaysian Palm Oil Industry Using AI-Based Methods}, year = {2026}, booktitle = {2026 7th International Conference on Artificial Intelligence and Data Sciences (AiDAS)}, pages = {280-287}, keywords = {Technology;Lubricating oils;Oils;Modeling;Supply chains;Natural language processing;Organizations;Management;Petroleum industry;Circular economy;Blockchain Readiness Assessment;TOE-HOT Framework;Natural Language Processing (NLP);Fuzzy Delphi Method (FDM);Best-Worst Method (BWM)}, doi = {10.1109/AiDAS71914.2026.11712790}, url = {https://ieeexplore.ieee.org/document/11712790}, } - Journal ArticleAbdulrahman Aminu Ghali, Mohd Hafizul Afifi Abdullah, Abdul Ghafar Jaafar, and 1 more authorOpen International Journal of Informatics
@article{ghali2026review, author = {Ghali, Abdulrahman Aminu and Abdullah, Mohd Hafizul Afifi and Jaafar, Abdul Ghafar and Talpur, Noureen}, title = {A Review Internet of Things (IoT) Security Challenges}, journal = {Open International Journal of Informatics}, volume = {14}, number = {1}, pages = {1--20}, year = {2026}, doi = {10.11113/oiji2026.14n1.344}, url = {https://oiji.utm.my/index.php/oiji/article/view/344}, } - Book ChapterShoaib Ul Hassan, Noureen Talpur, Mohd Hilmi Hasan, and 3 more authorsIn AI and Blockchain Applications in the Oil and Gas Industry
Distributed Acoustic Sensing (DAS) is a rapidly advancing technology in the oil and gas industry, enabling remote field operations monitoring in harsh and inaccessible environments. Utilizing laser-based optical fiber cables, DAS provides high-resolution, real-time spatiotemporal data over long distances. It generates massive volumes of data, necessitating advanced preprocessing methods. Integrating edge intelligence, including machine learning and AI, enables automated analysis, event detection (e.g., fluid leakage), and predictive capabilities such as CO2 flux estimation. DAS supports applications like wellbore, caprock, reservoir, and pipeline monitoring, offering advantages over conventional sensors like geophones. Its use extends beyond oil and gas to marine, traffic, infrastructure, and seismic monitoring. Combining DAS with Edge Intelligence and IoT technologies delivers a cost-effective, sustainable, and autonomous solution for continuous surveillance, marking a significant shift toward smarter and safer operations in various industries.
@incollection{abdullah2026bookchapter, title = {Monitoring Oil and Gas Using Edge Intelligence and IoT for Remote Field Operations}, author = {Hassan, Shoaib Ul and Talpur, Noureen and Hasan, Mohd Hilmi and Abdullah, Mohd Hafizul Afifi and Ullah, Fasee and Chowdhury, Md Tahmid Ashraf}, booktitle = {AI and Blockchain Applications in the Oil and Gas Industry}, year = {2026}, publisher = {IGI Global Scientific Publishing}, doi = {10.4018/979-8-3373-5457-6.ch008}, } - KeynoteMohd Hafizul Afifi AbdullahIn 1st International Conference on Innovations in Information and Communication Technologies (IICT’26)
Generative AI (GenAI) is the engine powering the next era of human innovation, rapidly redefining our productivity and scientific discovery. This keynote provides a comprehensive understanding of GenAI by decoding the engine and clarifying its underlying mechanics. It covers the architectural advancements in Deep Learning, Natural Language Processing (NLP), and the Transformer model that power large language models (LLMs) to show exactly how these systems function. Next, this keynote covers the research frontiers, highlights its current breakthroughs, key industry trends, and the strategic direction of AI innovation. Finally, this keynote outlines the responsible roadmap ahead and discusses the risks surrounding GenAI. By addressing critical challenges related to privacy, data governance, bias, and ethics, we can establish a framework to ensure the technology is deployed effectively, ethically, and securely.
@inproceedings{iict26keynote, author = {Abdullah, Mohd Hafizul Afifi}, year = {2026}, month = jan, title = {Decoding the Engine of Generative AI: Its Mechanics, Research Frontiers, and the Responsible Roadmap Ahead}, booktitle = {1st International Conference on Innovations in Information and Communication Technologies (IICT'26)}, doi = {10.13140/RG.2.2.11664.06408}, url = {https://doi.org/10.13140/RG.2.2.11664.06408}, }
2025
- Journal ArticleN. Talpur, N. A. Aziz, A. H. Muhamad Hafidz, and 1 more authorPlatform: A Journal of Science and Technology
@article{Talpur2025Raspberry, author = {Talpur, N. and Aziz, N. A. and Muhamad Hafidz, A. H. and Abdullah, M. H. A.}, title = {A Raspberry Pi-Based Framework for Network Security Threat Analysis in Local Area Networks}, journal = {Platform: A Journal of Science and Technology}, year = {2025}, publisher = {UTP Press}, doi = {10.61762/pjstvol8iss2art002}, url = {https://doi.org/10.61762/pjstvol8iss2art002}, } - ThesisAn Enhanced Embedding Strategy for Biomedical Event Extraction Using Deep Learning and Pretrained Language ModelMohd Hafizul Afifi AbdullahUniversiti Teknologi PETRONAS
@phdthesis{abdullah_thesis2025, title = {An Enhanced Embedding Strategy for Biomedical Event Extraction Using Deep Learning and Pretrained Language Model}, school = {Universiti Teknologi PETRONAS}, author = {Abdullah, Mohd Hafizul Afifi}, year = {2025}, } - Journal ArticleNoureen Talpur, Shoaib-ul Hassan, Mohd Hafizul Afifi Abdullah, and 5 more authorsSwarm and Evolutionary Computation
Many real-world problems involve a large number of features, among which several features are irrelevant or redundant. This problem not only increases the dimensionality but also reduces the classification performance of machine learning models. To address this issue, feature selection methods have been extensively used in the literature, either by applying existing algorithms or developing new algorithms. However, many of these approaches suffer from limitations such as insufficient feature reduction due to getting trapped in local minima in the large search space. Hence, this study proposed a recent stochastic optimization-based technique called the Osprey Optimization Algorithm (OOA). The OOA algorithm has the capability of balancing exploration and exploitation effectively during the search process, making it suitable for solving high-dimensional optimization tasks. To validate the efficiency of the selected feature subsets, the study employs the k-nearest neighbor (k-NN) classifier. Comparative results between OOA and five state-of-the-art algorithms show that OOA achieves the highest average classification accuracy of 89.22 %, while selecting the fewest average features of 70.63 and reduces the feature burden by 62.80 %. Moreover, the results of a non-parametric Wilcoxon signed-rank test based on classification accuracy show a p-value less than 5.00E-02, confirming a statistically significant difference in performance among the six algorithms.
@article{TALPUR2025102025, title = {Boosting classification accuracy using an efficient stochastic optimization technique for feature selection in high-dimensional data}, journal = {Swarm and Evolutionary Computation}, volume = {97}, pages = {102025}, year = {2025}, issn = {2210-6502}, doi = {10.1016/j.swevo.2025.102025}, url = {https://www.sciencedirect.com/science/article/pii/S221065022500183X}, author = {Talpur, Noureen and Hassan, Shoaib-ul and Abdullah, Mohd Hafizul Afifi and Ghali, Abdulrahman Aminu and Raheem, Ambreen Abdul and Khatoon, Shazia and Aziz, Norshakirah and Alaganandham, Sivashankari}, keywords = {High-dimensionality, Feature selection, Stochastic optimization, Classification, Machine learning}, } - Conference PaperShoaib Ul Hassan, Noureen Talpur, Mohd Hilmi Hasan, and 3 more authorsIn 2025 6th International Conference on Artificial Intelligence and Data Sciences: From Insights To Impact: Leveraging AI And Data Science For Strategic Decisions, AiDAS 2025 - Conference Proceedings
Distributed Acoustic Sensing (DAS) uses optical fiber cables to detect vibrations and record as a strain rate. DAS technology is being utilized in various fields. Its data routinely reaches terabytes. It is difficult to process even a 2 km long cable with a sample rate of 2000 Hz and a gauge length of 1 m produces ∼650 Gb of data per day. This entire cable works as a sensor. However, technology notoriously suffers high noise caused by diverse noise sources from internal (Instrumental), and external (Environmental) disturbances such as anthropogenic and morphological. Resulting in poor Data Quality (DQ) potentially required for machine learning (ML) algorithms. Therefore, this research focuses on addressing issues by removing inconsistencies and irregularities. Additionally, this study proposes noise removal and improved Signal-to-Noise Ratio (SNR) through ML and data preprocessing techniques, which enhanced data accuracy and reliability for subsurface CO2 leak detection. The proposed model successfully preprocessed the DAS data, improved its SNR, and provided comprehensive DQ reports. The proposed model reduced data by a factor of 3.24 with ∼69.09% space savings, achieving a PSNR of 71.90 dB, indicating better performance and output quality. Furthermore, we compared our proposed methodology with DASN2N. Where our proposed methodology given better performance in terms of SNR ratio.
@inproceedings{Ul_Hassan2025391, author = {Ul Hassan, Shoaib and Talpur, Noureen and Hasan, Mohd Hilmi and Abdullah, Mohd Hafizul Afifi and Chowdhury, Md Tahmid Ashraf and Khan, Ambreen}, title = {Data Quality Assessment of Distributed Acoustic Sensing for CO2 Leak Detection Using Machine Learning}, year = {2025}, booktitle = {2025 6th International Conference on Artificial Intelligence and Data Sciences: From Insights To Impact: Leveraging AI And Data Science For Strategic Decisions, AiDAS 2025 - Conference Proceedings}, pages = {391-396}, doi = {10.1109/AiDAS67696.2025.11213822}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-105023664663&doi=10.1109%2fAiDAS67696.2025.11213822&partnerID=40&md5=5bef9348a9534c8bf9e966d0c485402a}, source = {Scopus}, }
2024
- Conference PaperNoureen Talpur, Norshakirah Aziz, Shazia Khatoon, and 3 more authorsIn 2024 International Conference on TVET Excellence & Development (ICTeD)
Many studies indicate that complex subjects and poor exam performance often contribute significantly to student anxiety. In this era of rapid technological advancements, the teaching approach should evolve by incorporating engaging, game-based tools that attract students and assist in mastering complex topics. These tools not only enhance student engagement but also make learning more accessible and easier to understand. Therefore, this study examines the effectiveness of Blooket, an innovative tool for improving students’ comprehension of complex mathematics and statistics while reducing their anxiety. By integrating interactive and engaging elements into educational quizzes, Blooket significantly enhances student engagement, motivation, and learning outcomes. The findings of the study demonstrated the successful implementation of this strategy, with positive student feedback highlighting its potential to transform attitudes toward complex subjects like mathematics and statistics. This approach makes the learning experience more enjoyable and productive, encourages a supportive learning environment, and ultimately promotes academic success in challenging subjects.
@inproceedings{10844627, author = {Talpur, Noureen and Aziz, Norshakirah and Khatoon, Shazia and Abdullah, Mohd Hafizul Afifi and Shoaib-Ul-Hassan and Balogun, Abdullateef Oluwagbemiga}, booktitle = {2024 International Conference on TVET Excellence & Development (ICTeD)}, title = {The Gamification Effect of Simplifying Complex Mathematics and Statistics Concepts: A Case Study of Online Game-Based Quiz Tools}, year = {2024}, volume = {}, number = {}, pages = {130-135}, keywords = {Data analysis;Anxiety disorders;Education;Transforms;Learning (artificial intelligence);Games;Programming profession;Software engineering;digital technologies;game-based tools;Blooket;active learning;educational quizzes}, doi = {10.1109/ICTeD62334.2024.10844627}, url = {https://doi.org/10.1109/ICTeD62334.2024.10844627}, } - Conference PaperNoureen Talpur, Nathaniel Chol Gakeer Alier, Hafizan Matsom, and 2 more authorsIn 2024 8th International Conference on Computing, Communication, Control and Automation (ICCUBEA)
The aim of this study is to develop a machine learning model that utilizes historical employee data to predict future performance within organizational contexts. To achieve this, employees are categorized into three distinct groups: high performers, moderate performers, and low performers. The objective is to use this data to enhance talent management and decision-making in organizations. Building the machine learning model involves addressing challenges such as data quality, bias, and interpretability. Compared to current methods, anticipated outcomes involve achieving higher levels of accuracy, computational complexity, and adaptability. However, ethical considerations, including fairness and transparency, remain essential to this study. Hence, the aim of this study is to offer a flexible and forward-looking approach that adapts to changing organizational dynamics, meeting companies’ needs for innovative approaches to workforce management.
@inproceedings{10.1109/ICCUBEA61740.2024.10774749, author = {Talpur, Noureen and Gakeer Alier, Nathaniel Chol and Matsom, Hafizan and Abdullah, Mohd Hafizul Afifi and Khatoon, Shazia}, booktitle = {2024 8th International Conference on Computing, Communication, Control and Automation (ICCUBEA)}, title = {Predicting Employee Performance using Machine Learning to Enhance Workforce Efficiency}, year = {2024}, volume = {}, number = {}, pages = {1-4}, keywords = {Support vector machines;Performance evaluation; Adaptation models; Automation; Computational modeling; Decision making; Machine learning; Predictive models; Data models; Planning; Machine Learning Model; Performance Prediction; Talent Management; Data-driven Approach; Ethical Considerations}, doi = {10.1109/ICCUBEA61740.2024.10774749}, url = {https://doi.org/10.1109/ICCUBEA61740.2024.10774749}, } - Journal ArticleMohd Hafizul Afifi Abdullah, Norshakirah Aziz, Said Jadid Abdulkadir, and 3 more authorsJournal of Data and Information Science
Purpose: The purpose of this study is to serve as a comprehensive review of the existing annotated corpora. This review study aims to provide information on the existing annotated corpora for event extraction, which are limited but essential for training and improving the existing event extraction algorithms. In addition to the primary goal of this study, it provides guidelines for preparing an annotated corpus and suggests suitable tools for the annotation task. Design/methodology/approach: This study employs an analytical approach to examine available corpus that is suitable for event extraction tasks. It offers an in-depth analysis of existing event extraction corpora and provides systematic guidelines for researchers to develop accurate, high-quality corpora. This ensures the reliability of the created corpus and its suitability for training machine learning algorithms. Findings: Our exploration reveals a scarcity of annotated corpora for event extraction tasks. In particular, the English corpora are mainly focused on the biomedical and general domains. Despite the issue of annotated corpora scarcity, there are several high-quality corpora available and widely used as benchmark datasets. However, access to some of these corpora might be limited owing to closed-access policies or discontinued maintenance after being initially released, rendering them inaccessible owing to broken links. Therefore, this study documents the available corpora for event extraction tasks. Research limitations: Our study focuses only on well-known corpora available in English and Chinese. Nevertheless, this study places a strong emphasis on the English corpora due to its status as a global lingua franca, making it widely understood compared to other languages. Practical implications: We genuinely believe that this study provides valuable knowledge that can serve as a guiding framework for preparing and accurately annotating events from text corpora. It provides comprehensive guidelines for researchers to improve the quality of corpus annotations, especially for event extraction tasks across various domains. Originality/value: This study comprehensively compiled information on the existing annotated corpora for event extraction tasks and provided preparation guidelines.
@article{10.2478/jdis-2024-0029, title = {A comprehensive review of existing corpora and methods for creating annotated corpora for event extraction tasks}, journal = {Journal of Data and Information Science}, number = {4}, volume = {9}, year = {2024}, pages = {196--238}, issn = {2096-157X}, doi = {10.2478/jdis-2024-0029}, url = {https://doi.org/10.2478/jdis-2024-0029}, author = {{Abdullah}, Mohd Hafizul Afifi and Aziz, Norshakirah and {Abdulkadir}, Said Jadid and Hussain, Kashif and Alhussian, Hitham and Talpur, Noureen}, keywords = {Information extraction, Event extraction, Text mining, Large language model, Natural language processing}, }
2023
- Journal ArticleNoureen Talpur, Said Jadid Abdulkadir, Emelia Akashah Patah Akhir, and 3 more authorsJournal of King Saud University - Computer and Information Sciences
The novel Deep Neuro-Fuzzy System (DNFS) has attracted significant attention from researchers due to the model’s adaptability and rule-based structure. The model has been successfully implemented in various real-world applications. However, despite its success, the DNFS experience difficulties applying high-dimensional data. The rule base in the DNFS expands exponentially with the number of features affecting the transparency of the model. Additionally, the typical gradient-descent (GD) technique used in the DNFS rule-base optimization frequently encounters the issue of being trapped in local minima. This study aims to introduce a modern optimization approach to address these drawbacks. Therefore, the novel Bitwise Arithmetic Optimization Algorithm (BAOA) has been proposed in this work. The BAOA method has been implemented as a feature selection approach to solve the large rule base problem due to applying high dimensional data. Moreover, the DNFS’ rule base optimization was carried out using the proposed BAOA algorithm to escape the local minima issue owing to the GD algorithm. The simulation results obtained on twelve benchmark datasets illustrated that the BAOA has been able to select the least number of features from high-dimensional data with an average accuracy of 95.53%. In terms of rule base optimization, the novel BAOA achieved better performance with average training and testing accuracies of 96.87% and 96.25%, respectively, on benchmark datasets compared to the Arithmetic Optimization Algorithm (AOA) (average training and testing accuracies of 95.66% and 94.54%) and GD-based optimization (average training and testing accuracies of 94.07% and 93.19%). Additionally, the Wilcoxon test revealed a significant difference between the performances of the proposed BAOA algorithm and comparative methods. The findings indicate that the proposed BAOA approach is highly effective for high-dimensional real-world problems.
@article{TALPUR2023, title = {A novel bitwise arithmetic optimization algorithm for the rule base optimization of deep neuro-fuzzy system}, journal = {Journal of King Saud University - Computer and Information Sciences}, year = {2023}, issn = {1319-1578}, doi = {10.1016/j.jksuci.2023.01.020}, url = {https://www.sciencedirect.com/science/article/pii/S1319157823000289}, author = {Talpur, Noureen and {Abdulkadir}, Said Jadid and {Akhir}, Emelia Akashah Patah and {Hasan}, Mohd Hilmi and Alhussian, Hitham and {Abdullah}, Mohd Hafizul Afifi}, keywords = {Machine learning, deep learning, bitwise arithmetic optimization algorithm, metaheuristics, gradient-descent}, } - Journal ArticleMohd Hafizul Afifi Abdullah, Norshakirah Aziz, Said Jadid Abdulkadir, and 2 more authorsIEEE Access
Information extraction (IE) is a challenging task, particularly when dealing with highly heterogeneous data. State-of-the-art data mining technologies struggle to process information from textual data. Therefore, various IE techniques have been developed to enable the use of IE for textual data. However, each technique differs from one another because it is designed for different data types and has different target information to be extracted. This study investigated and described the most contemporary methods for extracting information from textual data, emphasizing their benefits and shortcomings. To provide a holistic view of the domain, this comprehensive systematic literature review employed a systematic mapping process to summarize studies published in the last six years (from 2017 to 2022). It covers fundamental concepts, recent approaches, applications, and trends, in addition to challenges and future research prospects in this domain area. Based on an analysis of 161 selected studies, we found that the state-of-the-art models employ deep learning to extract information from textual data. Finally, this study aimed to guide novice and experienced researchers in future research and serve as a foundation for this research area.
@article{10032132, author = {Abdullah, Mohd Hafizul Afifi and Aziz, Norshakirah and Abdulkadir, Said Jadid and Alhussian, Hitham Seddig Alhassan and Talpur, Noureen}, journal = {IEEE Access}, title = {Systematic Literature Review of Information Extraction From Textual Data: Recent Methods, Applications, Trends, and Challenges}, year = {2023}, volume = {11}, number = {}, pages = {10535-10562}, doi = {10.1109/ACCESS.2023.3240898}, } - Conference PaperNorshakirah Aziz, Emelia Akashah Patah Akhir, Said Jadid Abdulkadir, and 2 more authorsIn The IAFOR International Conference on Education – Hawaii 2023 Official Conference Proceedings
This research clarified the development of analytical thinking skills through 10 hands-on lab sessions conducted among undergraduates at Universiti Teknologi PETRONAS (UTP). This systematic review study examined 30 publications from 2017 to 2022 that were discovered through a comprehensive systematic mapping process for a more in-depth analysis. Previous studies indicate that most instructors and students believe the flipped classroom approach improved analytical thinking among undergraduates. Therefore, in order to determine the effectiveness of the flipped classroom approach for the development of analytical thinking, 134 UTP undergraduates enrolled in Big Data Analytics (BDA) course are considered as the participants in this study. One complete module with detailed teaching and learning activities (TLA) was developed for an immersive learning experience, and students were provided with pre-class instruction. The performance of the flipped classroom approach was evaluated using immersive learning experiences and a student satisfaction survey. The results show that the flipped classroom approach is successful in developing students’ analytical thinking skills among the participants of this study. The research has been reviewed and approved by the university through the Scholarship of the Teaching of Learning (SoTL).
@inproceedings{10.22492/issn.2189-1036.2023.56, author = {Aziz, Norshakirah and Akhir, Emelia Akashah Patah and Abdulkadir, Said Jadid and Alhussian, Hitham Seddig Alhassan and Abdullah, Mohd Hafizul Afifi}, title = {Development of Analytical Thinking Using Flipped Classroom Approach for Big Data Analytics Courses}, booktitle = {The IAFOR International Conference on Education – Hawaii 2023 Official Conference Proceedings}, year = {2023}, publisher = {The International Academic Forum (IAFOR)}, pages = {679--696}, doi = {10.22492/issn.2189-1036.2023.56}, issn = {2189-1036}, } - Conference PaperEvent Detection and Information Extraction Strategies from Text: A Preliminary Study Using GENIA CorpusMohd Hafizul Afifi Abdullah, Norshakirah Aziz, Said Jadid Abdulkadir, and 2 more authorsIn Proceedings of the 2nd International Conference on Emerging Technologies and Intelligent Systems
In the world we live today, data is the new oil. Data can reveal hidden knowledge that gives us an advantage over our competitors. However, data that are present in an unstructured form such as text documents are difficult to be processed by conventional machine learning algorithms. Therefore, in this study, we attempted to perform information extraction from textual data using current and state-of-the-art models to understand their working mechanisms. To perform this study, we have chosen the GENIA corpus for evaluating the performance of each model. These selected event extraction models are evaluated based on specific measures which are precision, recall, and F-1 measure. The result of our study shows that the DeepEventMine model has scored the highest for trigger detection with a precision of 79.17%, recall at 82.93%, and F-1 measure at 81.01%. Similarly, for event detection, the DeepEventMine model has scored highest among other models with a precision of 65.24%, recall at 55.93%, and F-1 measure at 60.23% based on the selected corpus.
@inproceedings{10.1007/978-3-031-20429-6_12, author = {Abdullah, Mohd Hafizul Afifi and Aziz, Norshakirah and Abdulkadir, Said Jadid and Akhir, Emelia Akashah Patah and Talpur, Noureen}, editor = {Al-Sharafi, Mohammed A. and Al-Emran, Mostafa and Al-Kabi, Mohammed Naji and Shaalan, Khaled}, title = {Event Detection and Information Extraction Strategies from Text: A Preliminary Study Using GENIA Corpus}, booktitle = {Proceedings of the 2nd International Conference on Emerging Technologies and Intelligent Systems }, year = {2023}, publisher = {Springer International Publishing}, address = {Cham}, pages = {118--127}, isbn = {978-3-031-20429-6}, } - Conference PaperPredictive Analytics for Oil and Gas Asset Maintenance Using XGBoost AlgorithmNorshakirah Aziz, Mohd Hafizul Afifi Abdullah, Nurul Aida Osman, and 2 more authorsIn Proceedings of the 2nd International Conference on Emerging Technologies and Intelligent Systems
One of the most important aspects of the oil and gas industry is asset management at their respective platforms. Without proper asset management, it will lead to various unexpected scenarios including an increase in plant deterioration, increased chances of accidents and injuries, and breakdown of assets at unexpected times which will lead to poor and hurried maintenance. Given the significant economic contribution of the oil and gas sector to oil-producing countries like Malaysia, accurate asset maintenance prediction is essential to ensure that the oil and gas platform can manage its operations profitably. This research identifies the parameters affecting the asset failure on oil and platform that will be interpreted using the XGBoost gradient boosting model from machine learning libraries. The model is used to predict the asset’s lifetime based on readings collected from the sensors of each machine. From result, our prediction method using XGBoost for asset maintenance has presented a 6.43% increase in classification accuracy as compared to the Random Forest algorithm.
@inproceedings{10.1007/978-3-031-20429-6_11, author = {Aziz, Norshakirah and Abdullah, Mohd Hafizul Afifi and Osman, Nurul Aida and Musa, Muhamad Nabil and Akhir, Emelia Akashah Patah}, editor = {Al-Sharafi, Mohammed A. and Al-Emran, Mostafa and Al-Kabi, Mohammed Naji and Shaalan, Khaled}, title = {Predictive Analytics for Oil and Gas Asset Maintenance Using XGBoost Algorithm}, booktitle = {Proceedings of the 2nd International Conference on Emerging Technologies and Intelligent Systems }, year = {2023}, publisher = {Springer International Publishing}, address = {Cham}, pages = {108--117}, isbn = {978-3-031-20429-6}, }
2022
- Journal ArticleNoureen Talpur, Said Jadid Abdulkadir, Hitham Alhussian, and 2 more authorsJournal of Computational Science
Deep Neuro-Fuzzy System has been successfully employed in various applications. But, the model faces two issues: (i) dataset with many features exponentially increases the fuzzy rule-base, (ii) parameters in the fuzzy rule-base are optimized using the gradient descent approach, which has the drawback of local minima. Therefore, this study aims on improving the model’s accuracy by proposing Arithmetic Optimization Algorithm. The outcomes using the Arithmetic Optimization Algorithm for feature selection have not only reduced the burden of implementing a huge dataset, but the Arithmetic Optimization-based deep neuro-fuzzy system has outperformed with 95.14% accuracy compared to the standard method with 94.52%.
@article{TALPUR2022101867, title = {Optimizing deep neuro-fuzzy classifier with a novel evolutionary arithmetic optimization algorithm}, journal = {Journal of Computational Science}, volume = {64}, pages = {101867}, year = {2022}, issn = {1877-7503}, doi = {10.1016/j.jocs.2022.101867}, url = {https://www.sciencedirect.com/science/article/pii/S1877750322002265}, author = {Talpur, Noureen and Abdulkadir, Said Jadid and Alhussian, Hitham and Hasan, Mohd Hilmi and Abdullah, Mohd Hafizul Afifi}, keywords = {Deep neural network, Deep neuro-fuzzy system, Arithmetic optimization algorithm, Metaheuristics, Classification problems}, elected = {false} }
2021
- ThesisImproved Personalised Data Modelling Using Parameter Independent Fuzzy Weighted k-Nearest Neighbour for Spatio/Spectro-Temporal DataMohd Hafizul Afifi AbdullahUniversiti Tun Hussein Onn Malaysia
Machine learning technologies have been growing rapidly in recent years. Researchers have come up with several data processing architectures, enabling machines to consume, interpret, and produce understandable output from real-world data to improve the quality of our lives. The NeuCube architecture is a data processing architecture for spatio/spectro-temporal data which consists of four main modules: a spike encoding module, a recurrent SNN reservoir, an output module, and an optimization module. Despite it has been utilised on many various applications, most improvement of the architecture focuses on user experience rather than improving the result accuracy. Upon exploration of the architecture, the weighted k-nearest neighbours algorithm used for the classification module is found to be prone to misclassification as it relies solely on the majority voting rule to determine the class for new data vector. Additionally, it does not consider the class-specific fuzzy weight information during the classification process. Therefore, a data modelling mechanism which implements PIfwkNN classifier algorithm for improving the overall classification accuracy of the NeuCube architecture has been proposed. The proposed data modelling applies an additional class-specific fuzzy weight information to new data vectors during the classification process. In this research, the optimal parameters set for experiments has also been identified. The approach has been validated by using the Kuala Krai Rainfall Dataset, Dow Jones Index Data Set, and Gold Price and Performance Dataset for the 3-days earlier and 1-day earlier event prediction. From the experiments, the improved personalised data modelling using PIfwkNN classifier has shown a significant increase in terms of overall classification accuracy as compared to the conventional MLP, fkNN, and NeuCube with wkNN classifier.
@phdthesis{abdullah_thesis2021, title = {Improved Personalised Data Modelling Using Parameter Independent Fuzzy Weighted k-Nearest Neighbour for Spatio/Spectro-Temporal Data}, school = {Universiti Tun Hussein Onn Malaysia}, author = {Abdullah, Mohd Hafizul Afifi}, year = {2021}, }
2020
- Conference PaperA Spiking Neural Networks Model with Fuzzy-Weighted k-Nearest Neighbour Classifier for Real-World Flood Risk AssessmentMohd Hafizul Afifi Abdullah, Muhaini Othman, Shahreen Kasim, and 2 more authorsIn Recent Advances on Soft Computing and Data Mining
Inspired by the brain working mechanism, the spiking neural networks has proven the capability of revealing significant association between different variables spike behavior during an event. The combination of the capability of SNN to produce personalised model has allowed high-precision for data classification. The exiting accuracy of weighted k-nearest neighbors classifier being used in the spiking neural networks architecture, noticeably can be further improved by implementing fuzzy-weights on the features, therefore allowing data to be classified more precisely to the high-impacting features. Simulation has been done by using three classifiers—Multi-layer Perceptron, weighted k-nearest neighbors, and Fuzzy-weighted k-nearest neighbors (FwkNN) using a real-world flood case study dataset and two benchmark dataset. Based on the result using the Kuala Krai Rainfall Dataset, FwkNN classifier has improved accuracy by 3.48% and 3.57% for 3-days earlier and 1-day earlier classification respectively. As compared to, FwkNN classifier has proven the capability to reduce misclassification and increase the accuracy of dataset classification.
@inproceedings{10.1007/978-3-030-36056-6_22, author = {Abdullah, Mohd Hafizul Afifi and Othman, Muhaini and Kasim, Shahreen and Saharuddin, Shaznoor Shakira and Mohamed, Siti Aisyah}, editor = {Ghazali, Rozaida and Nawi, Nazri Mohd and Deris, Mustafa Mat and Abawajy, Jemal H.}, title = {A Spiking Neural Networks Model with Fuzzy-Weighted k-Nearest Neighbour Classifier for Real-World Flood Risk Assessment}, booktitle = {Recent Advances on Soft Computing and Data Mining}, year = {2020}, publisher = {Springer International Publishing}, address = {Cham}, pages = {222--230}, isbn = {978-3-030-36056-6}, } - Conference PaperNorshakirah Aziz, Mohd Hafizul Afifi Abdullah, and Ahmad Naqib ZaidiIn 2020 International Conference on Computational Intelligence (ICCI)
Prediction of future crude oil price is considered a significant challenge due to the extremely complex, chaotic, and dynamic nature of the market and stakeholder’s perception. The crude oil price changes every minute, and millions of shares ownerships are traded everyday. The market price for commodity such as crude oil is influenced by many factors including news, supply-and-demand gap, labour costs, amount of remaining resources, as well as stakeholders’ perception. Therefore, various indicators for technical analysis have been utilized for the purpose of predicting the future crude oil price. Recently, many researchers have turned to machine learning approached to cater to this problem. This study demonstrated the use of RNN-LSTM networks for predicting the crude oil price based on historical data alongside other technical analysis indicators. This study aims to certify the capability of a prediction model built based on the RNN-LSTM network to predict the future price of crude oil. The developed model is trained and evaluated against accuracy matrices to assess the capability of the network to provide an improvement of the accuracy of crude oil price prediction as compared to other strategies. The result obtained from the model shows a promising prediction capability of the RNN-LSTM algorithm for predicting crude oil price movement.
@inproceedings{9247665, author = {Aziz, Norshakirah and Abdullah, Mohd Hafizul Afifi and Zaidi, Ahmad Naqib}, booktitle = {2020 International Conference on Computational Intelligence (ICCI)}, title = {Predictive Analytics for Crude Oil Price Using RNN-LSTM Neural Network}, year = {2020}, volume = {}, number = {}, pages = {173-178}, doi = {10.1109/ICCI51257.2020.9247665}, organization = {IEEE}, }
2019
- Journal ArticleEvolving spiking neural networks methods for classification problem: a case study in flood events risk assessmentMohd Hafizul Afifi Abdullah, Muhaini Othman, Shahreen Kasim, and 1 more authorIndonesian Journal of Electrical Engineering and Computer Science
Analysing environmental events such as predicting the risk of flood is considered as a challenging task due to the dynamic behaviour of the data. One way to correctly predict the risk of such events is by gathering as much of related historical data and analyse the correlation between the features which contribute to the event occurrences. Inspired by the brain working mechanism, the spiking neural networks have proven the capability of revealing a significant association between different variables spike behaviour during an event. Personalised modelling, on the other hand, allows a personal model to be created for a specific data model and experiment. Therefore, a personalised modelling method incorporating spiking neural network is used to create a personalised model for assessing a real-world flood case study in Kuala Krai, Kelantan based on historical data of 2012-2016 provided by Malaysian Meteorological Department. The result shows that the method produces the highest accuracy among the selected compared algorithms.
@article{abdullah2019evolving, title = {Evolving spiking neural networks methods for classification problem: a case study in flood events risk assessment}, author = {Abdullah, Mohd Hafizul Afifi and Othman, Muhaini and Kasim, Shahreen and Mohamed, Siti Aisyah}, journal = {Indonesian Journal of Electrical Engineering and Computer Science}, volume = {16}, number = {1}, pages = {222--229}, year = {2019}, } - Journal ArticleA review on data clustering using spiking neural network (SNN) modelsSiti Aisyah Mohamed, Muhaini Othman, and Mohd Hafizul Afifi AbdullahIndonesian Journal of Electrical Engineering and Computer Science
The evolution of Artificial Neural Network recently gives researchers an interest to explore deep learning evolved by Spiking Neural Network clustering methods. Spiking Neural Network (SNN) models captured neuronal behaviour more precisely than a traditional neural network as it contains the theory of time into their functioning model [1]. The aim of this paper is to reviewed studies that are related to clustering problems employing Spiking Neural Networks models. Even though there are many algorithms used to solve clustering problems, most of the methods are only suitable for static data and fixed windows of time series. Hence, there is a need to analyse complex data type, the potential for improvement is encouraged. Therefore, this paper summarized the significant result obtains by implying SNN models in different clustering approach. Thus, the findings of this paper could demonstrate the purpose of clustering method using SNN for the fellow researchers from various disciplines to discover and understand complex data.
@article{mohamed2019review, title = {A review on data clustering using spiking neural network (SNN) models}, author = {Mohamed, Siti Aisyah and Othman, Muhaini and Abdullah, Mohd Hafizul Afifi}, journal = {Indonesian Journal of Electrical Engineering and Computer Science}, volume = {15}, number = {3}, pages = {1392}, year = {2019}, }
2018
- Conference PaperM-DCocoa: M-Agriculture Expert System for Diagnosing Cocoa Plant DiseasesMunirah Mohd Yusof, Nur Fazliyana Rosli, Muhaini Othman, and 2 more authorsIn Recent Advances on Soft Computing and Data Mining
Major technological advancements were experienced including mobile applications in the various domain. The advancement in mobile applications not only used for our daily life and chores but it leads to more specific and technical purposes such as in medical, engineering, agriculture and education domain. This paper aims to study the implementation of mobile systems in agriculture and proposes a development of M-Agriculture that help in diagnosing cocoa plant diseases named as M-DCocoa. This application enables a user to recognize cocoa diseases afflict by the plant and provide user appropriate advice or treatments in shorter time period. The user will answer the questions based on cocoa plant condition or symptoms and the application generates the answer in form of disease and treatments. A rule-based and forward chaining inference engine has been used as part of the system development. With this application, it helps and allows the user to recognize cocoa diseases with useful treatments suggestion.
@inproceedings{10.1007/978-3-319-72550-5_35, author = {Yusof, Munirah Mohd and Rosli, Nur Fazliyana and Othman, Muhaini and Mohamed, Rozlini and Abdullah, Mohd Hafizul Afifi}, editor = {Ghazali, Rozaida and Deris, Mustafa Mat and Nawi, Nazri Mohd and Abawajy, Jemal H.}, title = {M-DCocoa: M-Agriculture Expert System for Diagnosing Cocoa Plant Diseases}, booktitle = {Recent Advances on Soft Computing and Data Mining}, year = {2018}, publisher = {Springer International Publishing}, address = {Cham}, pages = {363--371}, isbn = {978-3-319-72550-5}, } - Conference PaperA Framework to Cluster Temporal Data Using Personalised Modelling ApproachMuhaini Othman, Siti Aisyah Mohamed, Mohd Hafizul Afifi Abdullah, and 2 more authorsIn Recent Advances on Soft Computing and Data Mining
This research paper is focused on the framework design of temporal data by using personalised modelling approach in order to cluster the temporal data. Real world problem on flood occurrences is used as a case study focusing only in Malaysia region. The data are designed according to the criteria needed for temporal data clustering, tested with three clustering techniques including K-means, X-means, and K-medoids. Rapid Miner is used for conducting the clustering processes. Finally, the result from each clustering method is compared to conclude and justify the best clustering approach for clustering temporal data.
@inproceedings{10.1007/978-3-319-72550-5_18, author = {Othman, Muhaini and Mohamed, Siti Aisyah and Abdullah, Mohd Hafizul Afifi and Yusof, Munirah Mohd and Mohamed, Rozlini}, editor = {Ghazali, Rozaida and Deris, Mustafa Mat and Nawi, Nazri Mohd and Abawajy, Jemal H.}, title = {A Framework to Cluster Temporal Data Using Personalised Modelling Approach}, booktitle = {Recent Advances on Soft Computing and Data Mining}, year = {2018}, publisher = {Springer International Publishing}, address = {Cham}, pages = {181--190}, isbn = {978-3-319-72550-5}, } - Conference PaperMuhaini Othman, Norhafizah Mohd Halil, M Mohd Yusof, and 2 more authorsMATEC Web of Conferences
The advancement in mobile technology has led towards a new frontier of medical intervention that never been thought possible before. Through the development of MedsBox Reminder (MBR) application for Android as a pilot project of M-Health, health care information system for patient selfmanagement is made possible. The application acts as an assistant to remind users for their timely medicine intake by notifying them through their mobile phone. MedsBox Reminder application aims to facilitate in the self-management of patient’s health where they can monitor and schedule their own medicine intake more efficiently. Development of the application is performed using Android Studio 1.4, Android SDK, MySQL database, SQLite, Java language and Netbeans IDE 8.1. Object-Oriented System Development (OOSD) methodology has been adapted to facilitate the development of the application.
@article{othman2018empowering, author = {Othman, Muhaini and Halil, Norhafizah Mohd and Yusof, M Mohd and Mohamed, R and Abdullah, Mohd Hafizul Afifi}, title = {Empowering Self-Management through M-Health Applications}, doi = {10.1051/matecconf/201815005018}, url = {https://doi.org/10.1051/matecconf/201815005018}, journal = {MATEC Web of Conferences}, year = {2018}, volume = {150}, pages = {05018}, }
2017
- Journal ArticleHuman Resource Management on CloudMuhaini Othman, Mastura Arif, Mohd Hafizul Afifi Abdullah, and 2 more authorsJOIV: International Journal on Informatics Visualization
iHRMS is a diligent method to replace the traditional employee management system used by small and mid-scale companies and businesses for managing the employee attendance and payroll. Most traditional methods for managing employee lack the capability to capture employee attendance in real time, hence unable to track employees’ punctuality. In another point of view, the problem may affect the overall performance of the employees in an organisation. iHRMS has been introduced not only to cater the said problem but to assist in delivering a more accurate payroll system, therefore, enabling an organisation to better manage their finance.
@article{othman2017human, title = {Human Resource Management on Cloud}, author = {Othman, Muhaini and Arif, Mastura and Abdullah, Mohd Hafizul Afifi and Yusof, Munirah Mohd and Mohamed, Rozlini}, journal = {JOIV: International Journal on Informatics Visualization}, volume = {1}, number = {4-2}, pages = {260--263}, year = {2017}, } - Journal ArticleiBid: A Competitive Bidding Environment for Multiscale TailorMuhaini Othman, Siti Najiha Shamsudin, Mohd Hafizul Afifi Abdullah, and 2 more authorsJOIV: International Journal on Informatics Visualization
Nowadays, various online auction web services are available, allowing people to bid on items to be purchased at a competitive price. The same approach is applicable to allow people to bid on projects on Freelancer website. Here, we present an environment for customers to publish a project online, whereby marketers are able to bid on projects, called the iBid system. The iBid system demonstrates an application of bidding system which is capable of assisting customers find local tailors according to three criteria namely location, type of sewing and cost. Reversed auction mechanism is used where the customer will control the business. The prototyping methodology approach has been used to develop the system running on a PHP server and a MySQL database.
@article{othman2017ibid, title = {iBid: A Competitive Bidding Environment for Multiscale Tailor}, author = {Othman, Muhaini and Shamsudin, Siti Najiha and Abdullah, Mohd Hafizul Afifi and Yusof, Munirah Mohd and Mohamed, Rozlini}, journal = {JOIV: International Journal on Informatics Visualization}, volume = {1}, number = {4-2}, pages = {256--259}, year = {2017}, } - Journal ArticleCakelicious: Web App for Designing a Customised Wedding CakesMuhaini Othman, Mohd Shuqor Nordin, Mohd Hafizul Afifi Abdullah, and 2 more authorsJOIV: International Journal on Informatics Visualization
In the fast-paced changing world, the Internet keeps people connected to each other. Online shopping has changed the way people buy things, and so does how people book flight tickets and movie passes. Cakelicious Web App is another interesting story of how we revolutionize the way people book wedding cakes the way they love it. The system is designed to replace the current manual booking methods used by Dr. Munie’s Kitchen for managing cakes order, thus is more efficient and effective, as well as meets the user requirements. Prototyping methodology approach has been used to develop and test the system in a systematic manner, which includes the development phases of planning, design, and testing and implementation. This system is developed using the PHP programming language, MySQL database, and runs on an Apache web server.
@article{othman2017cakelicious, title = {Cakelicious: Web App for Designing a Customised Wedding Cakes}, author = {Othman, Muhaini and Nordin, Mohd Shuqor and Abdullah, Mohd Hafizul Afifi and Yusof, Munirah Mohd and Mohamed, Rozlini}, journal = {JOIV: International Journal on Informatics Visualization}, volume = {1}, number = {4-2}, pages = {236--239}, year = {2017}, } - Book ChapterComparative Analysis of Spatio/Spectro-Temporal Data Modelling TechniquesMohd Hafizul Afifi Abdullah, Muhaini Othman, and Shahreen KasimIn Data Engineering and Information Security
Recent advancement of technology and engineering provides opportunities to explore the idea for the development of an integrated sensing, prediction and alert system of natural disaster events. Therefore, several machine learning techniques have been explored by researchers to harvest knowledge from nature occurrences for prediction of environmental events. The aim of this paper is to investigate, compare and contrast three data modelling techniques, and five data classification training algorithms for spatio-temporal data using real world flood event case study data. A discussion is presented to identify the strengths and weaknesses of each data modelling techniques and training algorithms.
@incollection{abdullah2017comparative, title = {Comparative Analysis of Spatio/Spectro-Temporal Data Modelling Techniques}, author = {Abdullah, Mohd Hafizul Afifi and Othman, Muhaini and Kasim, Shahreen}, booktitle = {Data Engineering and Information Security}, year = {2017}, publisher = {Penerbit UTHM}, }
2016
- Conference PaperAn improved computational framework using one stage filtration by incorporating knowledge in gene expression clusteringShahreen Kasim, Mohd Farhan Md Fudzee, Mohamad Aizi Salamat, and 3 more authorsIn Proceedings of the International Conference on Artificial Intelligence and Robotics and the International Conference on Automation, Control and Robotics Engineering
The field of gene expression data analysis has grown in the past few years from being purely data-centric to integrative, aiming at complementing microarray analysis with data and knowledge from diverse available sources. Given a gene expression dataset, the challenge is to predict gene function given the intensity and redundancy of the data and the lack of similarity of expression profiles without degrading the analysis performance and also without assigning genes at random. At the same time, the computational method must be capable of producing highly compacted clusters with furthest separation, high consistency, and accuracy. In this paper, we present a new computational framework for clustering gene expression data. From this experiment, we can conclude that our new framework capable to improve the accuracy thus determined the dominant gene.
@inproceedings{kasim2016improved, title = {An improved computational framework using one stage filtration by incorporating knowledge in gene expression clustering}, author = {Kasim, Shahreen and Fudzee, Mohd Farhan Md and Salamat, Mohamad Aizi and Ramli, Azizul Azhar and Mahdin, Hairulnizam and Abdullah, Mohd Hafizul Afifi}, booktitle = {Proceedings of the International Conference on Artificial Intelligence and Robotics and the International Conference on Automation, Control and Robotics Engineering}, pages = {1--5}, year = {2016}, } - UG ThesisResearch on Improving Dominant Yeast Genes for Gene Function PredictionMohd Hafizul Afifi AbdullahUniversiti Tun Hussein Onn Malaysia
The field of gene expression data analysis has grown in the past few years from being purely data-centric to integrative, aiming at complementing micro-array analysis with data and knowledge from diverse available sources. Given a gene expression dataset, the challenge is to predict gene function given the intensity and redundancy of the data and the lack of similarity of expression profiles without degrading the analysis performance and also without assigning genes at random. At the same time, the computational method must be capable of producing highly compacted clusters with furthest separation, high consistency, and accuracy. In this paper, we present a new computational framework for clustering gene expression data. From this experiment, we can conclude that our new framework capable to improve the accuracy thus determined the dominant gene.
@phdthesis{abdullah_thesis2016, title = {Research on Improving Dominant Yeast Genes for Gene Function Prediction}, school = {Universiti Tun Hussein Onn Malaysia}, author = {Abdullah, Mohd Hafizul Afifi}, year = {2016}, }