https://ajba.um.edu.my/index.php/MJCS/issue/feed Malaysian Journal of Computer Science 2024-05-03T06:10:09+08:00 Editor MJCS mjcs@fsktm.um.edu.my Open Journal Systems <p style="text-align: justify;">The<strong> Malaysian Journal of Computer Science (ISSN 0127-9084)</strong> is published four times a year in January, April, July and October by the Faculty of Computer Science and Information Technology, University of Malaya, since 1985. Over the years, the journal has gained popularity and the number of paper submissions has increased steadily. The rigorous reviews from the referees have helped in ensuring that the high standard of the journal is maintained.</p> <p style="text-align: justify;">The objectives are to promote exchange of information and knowledge in research work, new inventions/developments of Computer Science and on the use of Information Technology towards the structuring of an information-rich society and to assist the academic staff from local and foreign universities, business and industrial sectors, government departments and academic institutions on publishing research results and studies in Computer Science and Information Technology through a scholarly publication. </p> <p style="text-align: justify;">The journal is being indexed and abstracted by <strong>Clarivate Analytics' Web of Science</strong> (Q4 of Journal Citation Report Rank)</p> <p style="text-align: justify;"> <img src="https://ejournal.um.edu.my/public/site/images/editormjcs/clarivate2.png" alt="" width="136" height="47" /></p> <p style="text-align: justify;">The journal is also abstracting in <strong>Elsevier's Scopus</strong> (Q3 of SCIMAGO Journal Rank)</p> <p> <img src="https://ejournal.um.edu.my/public/site/images/editormjcs/scopus3.png" alt="" width="147" height="42" /> </p> <p>The MJCS is a recipient of the <strong>CREAM</strong> (2017) and <strong>CREME Awards</strong> (2019) by the Ministry of Higher Education Malaysia. </p> <p> <img src="https://ejournal.um.edu.my/public/site/images/editormjcs/CREAM_LOGO16.jpg" alt="" width="65" height="71" /> <img src="https://ejournal.um.edu.my/public/site/images/editormjcs/LOGO_CREME_20191.jpg" alt="" width="68" height="67" /></p> https://ajba.um.edu.my/index.php/MJCS/article/view/51913 ENHANCING BRIX VALUE PREDICTION IN STRAWBERRIES USING MACHINE LEARNING: A FUSION OF PHYSIOCHEMICAL AND COLOR-BASED FEATURES FOR IMPROVED SWEETNESS ASSESSMENT 2024-05-03T06:02:32+08:00 Ameetha Junaina T. K ameetha.nabeel@gmail.com R. Kumudham kumudham.se@velsuniv.ac.in Ebenezer Abishek B. kumudham.se@velsuniv.ac.in Mohamed Shakir kumudham.se@velsuniv.ac.in <p>This study contributes to the ongoing wave of artificial intelligence integration by applying machine learning techniques to automate the assessment of strawberry quality. This research focuses on determining if the sweetness of strawberries can be predicted using a combination of physiochemical variables, their interaction parameters, and color-based features extracted from image data. This research used a 150-sample collection of strawberry images and physiochemical characteristics such&nbsp;as salinity, specific gravity, pH, and Brix. Normalized raw and derived feature variables and selected dataset transformations&nbsp;were done. We then split the dataset into mutual exclusivity training and test sets. Exponential Gaussian Process Regression (GPR) suited well due to low validation errors. This best model predicted Brix values for the remaining test samples. The Mean Absolute Percentage Error(MAPE) showed 98.783% forecast accuracy (Acc). We also examined the model's coefficient of determination (R<sup>2</sup>) values, which were 0.78 and 0.9739 for training and testing, respectively. The Mean Square Error (MSE) and Mean Absolute Error (MAE) obtained after training were 0.32994 and 0.0453, and testing was 0.35286 and 0.0663. Using input characteristics with high Acc and low error rates, deep learning models like Recurrent Neural Network (RNN) and its derivatives were constructed. Using physiochemical and visual data, machine learning and deep learning models successfully predict strawberry sweetness. This prediction accuracy shows the complex link between internal components and Brix readings, enabling high-quality strawberry production.</p> 2024-04-30T00:00:00+08:00 Copyright (c) 2024 Malaysian Journal of Computer Science https://ajba.um.edu.my/index.php/MJCS/article/view/51914 USAGE OF PARTICLE SWARM OPTIMIZATION IN DIGITAL IMAGES SELECTION FOR MONKEYPOX VIRUS PREDICTION AND DIAGNOSIS 2024-05-03T06:10:09+08:00 Akshaya Kumar Mandal akshayacs207@gmail.com Pankaj Kumar Deva Sarma pankajgr@rediffmail.com <p>Identifying skin diseases by using digital images of skin that are also automated, efficient, and accurate is critical for biomedical image analysis. Many researchers have developed numerous machine-learning techniques for the prediction and diagnosis of various diseases that help clinicians identify infections early and provide crucial data for virus management. In this work, we use the inherent attributes of Particle Swarm Optimization (PSO), such as exploration and exploitation, to identify images for monkeypox virus prediction and diagnosis. Alongside, monkeypox, chickenpox, smallpox, cowpox, measles, tomato flu, and normal skin images were all considered in this study for monkeypox virus prediction and diagnosis. We collect photos from the International Skin Imaging Collaboration (ISIC) for analysis and experimentation purposes. Finally, we compare the proposed model Particle Swarm Optimization- Monkeypox Virus (PSOMPX) for monkeypox virus identification with four distinct pre-trained deep learning models (e.g., VGG16, ResNet50, InceptionV3, and Ensemble). Then we use four performance evaluation metrics—accuracy, precision, recall, and F1 score—to evaluate the model and analyze the outcomes of experiments. The experimental results obtained through the PSOMPX model significantly outperform other models due to its numerous traits.</p> 2024-04-30T00:00:00+08:00 Copyright (c) 2024 Malaysian Journal of Computer Science