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31,456 Article Results

Scaling of Facebook architecture and technology stack with heavy workload: past, present and future

10.11591/ijict.v14i3.pp772-782
Tole Sutikno , Laksana Talenta Ahmad
Leading social media Facebook has improved its architecture to meet user needs. Facebook has improved its systems to handle millions of users with heavy workloads and large datasets using innovative architectural solutions and adaptive strategies. The study examines Facebook’s architectural and technological advances in heavy workload and big data. To understand how Facebook scaled with a growing user base and data volume, history and system architecture will be examined. It will also examine how cloud storage and high-performance computing optimize resource utilization and maintain performance during peak user activity. Facebook is managing big data and heavy workloads with new technologies like the hybrid communication model that uses PULL and PUSH strategies for real-time messaging. Facebook switched from HBase to MyRocks for message storage to improve performance as data grew. Architectural scaling and technology stack research must prioritize data storage innovations and optimized communication protocols to handle heavy workloads and big data. The messenger Sync protocol reduces network congestion and improves synchronous communication, reducing resource consumption and maintaining performance under high load. High-performance computing (HPC) and cloud storage should be studied together to support complex compute workflows. This convergence may improve large-scale application infrastructures and encourage interdisciplinary collaboration for scalable and resilient systems.
Volume: 14
Issue: 3
Page: 772-782
Publish at: 2025-12-01

Fit to-organization amplifies unethical pro-organizational behavior

10.11591/ijaas.v14.i4.pp1050-1060
Hany Azza Umama , Sri Murni Setyawati , Siti Zulaikha Wulandari
The study of unethical pro-organizational behavior (UPB) has seen a sharp rise in recent years, with research results explaining that a potential cause of UPB is organizational identification (OI). However, there are inconsistencies in the findings regarding the effect of OI on UPB in the workplace. This study seeks to test the direct effect of OI on UPB, and to explore the mediating role of fit to-organization (Fit-O). To evaluate data collected from employees of micro and small enterprises, this study utilized structural equation modeling-partial least squares (SEM-PLS) analysis, along with the variance accounted for (VAF) method to test the mediation between OI and UPB. The findings confirm that the fit or compatibility of an individual with the organization can strengthen the effect of OI on UPB. The intervening role of Fit-O in the OI-UPB relationship is a crucial theoretical contribution. This research also implies that organizations must balance increasing OI with strong ethical standards to mitigate UPB.
Volume: 14
Issue: 4
Page: 1050-1060
Publish at: 2025-12-01

Quantum-inspired magnetic resonance imaging sequence optimization for detecting neurological diseases

10.11591/ijaas.v14.i4.pp1208-1216
Kotichintala Venkata Narasimha Savan Kumar , Nitin Kumar
According to a research study by the National Institutes of Health, India, a magnetic resonance imaging (MRI) holds 89% diagnostic accuracy for acute stroke, while a computed tomography (CT) holds only 54%. Means there is still 11% area of improvement for accuracy measures required and there is 84% specific in identifying nerve enlargement. The possible solution is to use quantum computing; this is new era of technology in advanced design and implementation for computing techniques as compared with that of classical computers. With the goal of improving patient care, this is the area-of research using quantum technology to solve the neurological disorders. MRI and Microsoft’s quantum-inspired algorithms to enhance approach to detecting neurological disorders. To improve accuracy of MRI results in less time, an approach called magnetic resonance fingerprinting (MRF) was explored. This paper mainly focused on optimizing the sequence using Microsoft azure simulator. By generating an optimized pulse sequence and map to the accurate predefined patterns, able to create a solution that improves the diagnostic capability of MRI. Conventional computers will take long time to predict, but accuracy may alter. The proposed quantum-inspired optimization improved MRI diagnostic accuracy up to 92%, with faster sequence optimization compared to classical methods. This simulation-based proof of concept demonstrates potential for enhanced neurological disease detection while acknowledging current limitations such as simulator dependency and limited datasets.
Volume: 14
Issue: 4
Page: 1208-1216
Publish at: 2025-12-01

Implementation of XGBoost for diabetes mellitus risk prediction based on health history

10.11591/ijaas.v14.i4.pp1028-1039
Andi Riansyah , Ghufron Ghufron , Lailatul Fitriyah , Suyanto Suyanto
Diabetes mellitus (DM) is a chronic disease with a growing global burden and specific challenges for early management, particularly in regions with limited access to healthcare. This study develops a web-based system to classify diabetes risk from medical history using extreme gradient boosting (XGBoost), an ensemble model of decision trees. The dataset comprised 520 respondents (320 DM, 200 non-DM) and underwent labeling, standardization, and an 80:20 train–test split, followed by hyperparameter selection via grid search and 5-fold cross-validation (CV). On the test set, the model achieved an accuracy of 0.9888, precision of 1.0000, recall of 0.9718, and an F1-score of 0.9857; discriminative performance was also strong with an area under the receiver operating characteristic curve (AUC ROC) of 0.839. These findings confirm that XGBoost effectively handles complex or imbalanced medical data while providing probabilistic outputs that are clinically meaningful. Deployed as a web application, the system can support early screening, triage, and clinical decision-making, thereby expediting referrals and personalizing interventions in primary care and hospital settings, especially in resource-constrained environments. This work lays the groundwork for further development, including the integration of explainable artificial intelligence (XAI) techniques to enhance clinical transparency.
Volume: 14
Issue: 4
Page: 1028-1039
Publish at: 2025-12-01

Environmental and psychological influences on adolescents’ self-concept: teacher-student relationship as a moderator

10.11591/ijere.v14i6.34518
Ting Chen , Jamalsafri Saibon
Adolescence is a critical stage for the development of self-concept and psychological resilience. However, the impact of environmental and psychological factors on adolescents’ self-concept through psychological resilience has not been fully explored. Meanwhile, the discussion on whether the teacher-student relationship moderates the relationship between psychological resilience and self-concept is relatively rare. Based on cognitive-behavioral and social learning theories, this study collected data from 404 Chinese adolescents through a questionnaire survey. It employed partial least squares structural equation modeling (SEM) to test the hypotheses. The study found that environmental and psychological factors significantly influence adolescents’ psychological resilience, and psychological resilience mediates the relationship between environmental and psychological factors and self-concept. Moreover, the teacher-student relationship moderates psychological resilience and self-concept, particularly the positive teacher-student relationship, significantly promoting adolescents’ self-concept. This research highlights the critical influence of psychological resilience and teacher-student relationships in shaping adolescents’ self-concept. It provides empirical support for educational practice, highlighting the key role of environment, psychological factors, and good teacher-student relationships in adolescents’ mental health and self-concept development.
Volume: 14
Issue: 6
Page: 4528-4539
Publish at: 2025-12-01

The fundamental context of SEL for early childhood student teachers in private higher education institutions

10.11591/ijere.v14i6.34818
Yupawadee Promsatien , Ariyabhorn Kuroda , Suwadee Aerarunchot , Sungwean Pinagalang
This research examined the learning needs and the current social and emotional conditions of early childhood student teachers in private higher education institutions. The sample group responding to the questionnaire comprised 343 undergraduate students majoring in early childhood education. The target group for interviews included nine participants, which consisted of 3 deans, 3 department heads, and 3 lecturers. The research instruments consisted of a questionnaire on the state and needs of social and emotional learning (SEL) and an interview guide on the current social and emotional conditions of early childhood student teachers. The data were analyzed using percentage, mean, standard deviation, and content analysis. The findings revealed that the state of learning among pre-service teachers was at a low level, while their learning needs were high. Furthermore, the current conditions indicated that pre-service teachers require enhanced SEL opportunities. Activities fostering such learning should be designed, including group work, experiential learning, listening to others, and engaging in discussions.
Volume: 14
Issue: 6
Page: 4254-4263
Publish at: 2025-12-01

Methods used to enhance the physicochemical properties of natural ester insulating oils for transformers: a review

10.11591/ijaas.v14.i4.pp1393-1401
Muhammad Syahrani Johal , Sharin Ab Ghani , Mohd Shahril Ahmad Khiar , Imran Sutan Chairul , Norazhar Abu Bakar
Natural ester insulating oils, derived from vegetable-based feedstocks, are increasingly regarded as sustainable alternatives to conventional mineral oils due to their high fire point, biodegradability, and lower environmental impact. However, their widespread adoption in high-voltage equipment is constrained by their inherent limitations, such as lower oxidation stability, higher viscosity, and poor low-temperature performance. In this review, the three principal enhancement strategies developed to address these shortcomings are examined. The use of antioxidants is analysed for its role in improving oxidative resistance and flow characteristics. Transesterification is evaluated as a chemical modification method to alter the molecular structure, thereby enhancing viscosity and thermal stability. Refining and adsorbent treatments are discussed with respect to oil purification and regeneration, emphasising their adsorption efficiency and influence on dielectric performance. A comparative evaluation of these methods highlights their relative effectiveness, scalability, and practical challenges in implementation. This review underscores that no single approach is sufficient, and a combination of different methods is desirable to achieve optimal performance. These insights provide researchers with clear directions for further investigation while offering practitioners a knowledge base to guide the selection and application of enhanced natural ester insulating oils for reliable, long-term transformer operation.
Volume: 14
Issue: 4
Page: 1393-1401
Publish at: 2025-12-01

Influences of educational and personal contexts on self-efficacy and job satisfaction of public elementary school teachers

10.11591/ijere.v14i6.33510
Ellaine Joy G. Eusebio , Philip R. Baldera , Aljay Marc C. Patiam , Charton F. Sombria , Jacel Ruz F. Gan , Connie G. Castillo
Enhancing teachers’ performance and sense of fulfillment in their roles is essential for advancing educational quality and promoting their overall well-being. This study investigates the determinants of teachers’ self-efficacy within a supportive school culture, as well as the factors influencing their job satisfaction, focusing on both educational and personal contexts among public elementary school teachers within a supportive school culture, focusing on educational and personal contexts. Utilizing a sample of 97 teachers from 13 schools in the Philippines, the research employs a causal-comparative design and surveys to gather data. The Kruskal-Wallis test results indicate no significant differences in self-efficacy and job satisfaction across age groups. The Mann-Whitney U test reveals a significant difference in self-efficacy between male and female teachers, with the latter reporting higher levels, while no significant gender differences were observed in job satisfaction. Likewise, no significant differences were found across career stages in both efficacy and satisfaction. A multivariate analysis of variance reveals that a supportive school culture has a significant impact on teachers’ self-efficacy and also on their job satisfaction. These results emphasize the critical role of nurturing a supportive school environment to enhance teacher well-being and effectiveness. The study provides valuable insights and practical recommendations for improving educational quality and teacher satisfaction through targeted interventions in school culture and opportunities for career advancement.
Volume: 14
Issue: 6
Page: 4468-4477
Publish at: 2025-12-01

An artificial intelligent system for cotton leaf disease detection

10.11591/ijict.v14i3.pp950-959
Priyanka Nilesh Jadhav , Pragati Prashant Patil , Nitesh Sureja , Nandini Chaudhari , Heli Sureja
This study aims to develop a deep learning-based system for the detection and classification of diseases in cotton leaves, with the goal of aiding in early diagnosis and disease management, thereby enhancing agricultural productivity in India. The study utilizes a dataset of cotton leaf images, classified into four categories: Fusarium wilt, Curl virus, Bacterial blight, and Healthy leaves. The dataset is used to train and evaluate various CNN models such as basic CNN, VGG19, Xception, InceptionV3, and ResNet50. These models were evaluated on their accuracy in identifying the presence of diseases and classifying cotton leaf images into the respective categories. The models were trained using standard deep learning frameworks and optimized for high performance. The results indicated that ResNet50 achieved the highest accuracy of 100%, followed by InceptionV3 with 98.75%, and VGG19 and Xception both with 97.50%. The basic CNN model showed an accuracy of 96.25%. These models demonstrated strong potential for accurate multi-class classification of cotton leaf diseases. This study emphasizes the potential of deep learning in agricultural diagnostics. Future research can focus on improving model robustness, incorporating larger datasets, and deploying the system for real-time field use to assist farmers in disease management and improving cotton production.
Volume: 14
Issue: 3
Page: 950-959
Publish at: 2025-12-01

Big Five personality traits and entrepreneurial financing decisions among Malaysian university students

10.11591/ijere.v14i6.35491
Ying Ying Lim , Mary Lee Siew Cheng
Psychological factors are increasingly recognized as crucial in shaping entrepreneurial behavior and outcomes. However, the uncertainty and ambiguity in the entrepreneurial landscape reveal a significant gap in our understanding of these influences. Examining how personality traits affect entrepreneurs’ ability to identify opportunities and secure funding is essential. More research is needed to explore the connections between personality, thought processes, and emotions in entrepreneurial finance. This study investigates the relationships between Big Five personality traits and entrepreneurial financing decisions (EFD), focusing on the mediating role of alertness and the moderating role of passion. Using a cross-sectional design, data from 485 Malaysian university students aspiring to become entrepreneurs were analyzed via structural equation modeling (SEM) in SmartPLS. The findings indicate that traits like agreeableness, extraversion, and openness to experience enhance entrepreneurial alertness, influencing financing decisions. Additionally, higher levels of agreeableness and extraversion promote greater alertness regarding financing. Passion significantly amplifies the positive effects of alertness on financing decisions. However, conscientiousness and neuroticism do not directly or indirectly affect alertness. The study emphasizes the need for policymakers to enhance entrepreneurship education by integrating personality development and opportunity recognition training while balancing financial metrics with qualitative factors like passion and alertness.
Volume: 14
Issue: 6
Page: 4744-4757
Publish at: 2025-12-01

From family to classroom: mediating roles in promoting social and emotional learning among early adolescents

10.11591/ijere.v14i6.35535
Pantipa Thiamta , Suntonrapot Damrongpanit
This research aims to examine the influence of authoritative parenting (PAREN), cooperative learning (COOP), school environment (ENVI), positive classroom climate (CLASS), and extrovert personality (EXTRO) on social and emotional learning (SEL), as well as analyze the complexity of mediating variable roles linking these factors. The sample consisted of 684 lower secondary school students from the upper northern region of Thailand. Questionnaires were used for data collection, and analysis was conducted using partial least square structural equation modeling (PLS-SEM) technique. Research findings revealed complex structures among factors collectively explaining 67.37% of SEL variance. PAREN emerged as the most powerful driving force followed by school factors, namely COOP and CLASS, which demonstrated strong interconnection while ENVI showed only indirect influence through EXTRO. Furthermore, CLASS and EXTRO functioned as significant mediating variables between classroom factors and SEL. However, EXTRO did not play a mediating role in the relationship between parenting and SEL, reflecting that family influence remains the primary factor determining SEL development in Thai youth.
Volume: 14
Issue: 6
Page: 4916-4927
Publish at: 2025-12-01

Content validity of an innovative behavior rubric for polytechnic engineering students

10.11591/ijere.v14i6.33370
Nor Aisyah Che Derasid , Aede Hatib Musta’amal @ Jamal , Nornazira Suhairom , Hary Suswanto
In engineering education, fostering innovative behaviors is crucial for preparing students to tackle complex, real-world challenges. Developing an assessment tool or rubric that accurately measures innovative behavior is essential to provide educators with the means to systematically evaluate students’ innovative potential. This article mainly focuses on assessing the content validity of the innovative behavior assessment rubric, which is designed to measure the innovative behavior of engineering students. The rubric was designed around three core dimensions: problem recognition, idea generation, and idea implementation. Content validity was assessed using the item-level content validity index (I-CVI), scale-level content validity index (S-CVI), and modified kappa statistic. Expert evaluations resulted in a final 35-item rubric, with an overall S-CVI of 0.85, indicating high content validity. Items with I-CVI values below 0.70 were either revised or removed to ensure relevance and clarity. The study highlights the importance of expert judgment in the validation process and underscores the utility of both I-CVI and kappa in refining assessment tools. Future research will focus on construct and criterion validation, as well as practical application across diverse educational contexts.
Volume: 14
Issue: 6
Page: 4307-4319
Publish at: 2025-12-01

Redesigning retail spaces based on customer habits and halal standards using market basket analysis

10.11591/ijaas.v14.i4.pp1089-1098
Roaida Yanti , Qurtubi Qurtubi , Danang Setiawan , Prita Nurkhalisa Maradjabessy , Nasruddin Faisol
The halal retailing standard was first introduced by the Department of Malaysian Standards in 2010, known as MS 2400-3:2010. This standard was developed to protect Muslim consumers with the assurance of halal products. However, this management system needs to be more prescriptive on how the retail layout should be organized. In addition, this management also overrides the consideration of customer purchase behaviors or preferences. This research aims to design the layout of retail outlets by considering customer buying behavior and halal retailing standards. This study used the association rule-market basket analysis (AR-MBA) to determine the pattern of customer shopping behavior. One Islamic retail in Indonesia was used as a case study, where one-month sales transaction data was analyzed using AR-MBA. In addition, the activity relationship chart (ARC) was used to qualitatively analyze the placement of a product department by considering halal retailing standards. The results of AR-MBA obtained 21 associations among product departments, which were then used as a basis for proposed layouts while still considering the product characteristics and halal retailing standards. This research output provided a proposed product layout for retail outlets by considering quantitative factors (AR-MBA output) and qualitative factors (MS standard).
Volume: 14
Issue: 4
Page: 1089-1098
Publish at: 2025-12-01

Unit commitment problem solved with adaptive particle swarm optimization

10.11591/ijict.v14i3.pp783-790
Ramesh Babu Muthu , Venkatesh Kumar Chandrasekaran , Bharathraj Munusamy , Dashagireevan Sankaranarayanan
This article presents an innovative approach that solves the problem of generation scheduling by supplying all possible operating states for generating units for the given time schedule over the day. The scheduling variables are set up to code the load demand as an integer each day. The proposed adaptive particle swarm optimization (APSO) technique is used to solve the generation scheduling issue by a method of optimization considering production as well as transitory costs. The system and generator constraints are considered when solving the problem, which includes minimum and maximum uptime and downtime as well as the amount of energy produced by each producing unit (like capacity reserves). This paper describes the suggested algorithm that can be applied for unit commitment problems with wind and heat units. Test systems with 26 and 10 units are used to validate the suggested algorithm.
Volume: 14
Issue: 3
Page: 783-790
Publish at: 2025-12-01

Training pedagogical competence for teachers: a bibliometric analysis using the Scopus database

10.11591/ijere.v14i6.28314
Viet Nga Thi Nguyen , Phuong Lien Lai
Pedagogical competence training for teachers is an intensive training process to improve teachers’ knowledge, skills, and teaching ability. The change in teaching and research and the development of science and technology have affected the training of pedagogical competency for teachers in many countries. An analysis of the publications related to these paints a general picture of significant trends and contributions by scientists and has implications for policymakers and researchers alike. The study used bibliographic analysis to analyze 344 documents extracted from the Scopus database related to pedagogical competence training for teachers. The results show that the number of studies on this topic increased sharply, especially from 2015 to 2022 and mainly from studies in the United States and developed countries. In addition, the most concerning issues are higher education, professional development, and teacher training. Policymakers and researchers can find prominent authors, influential studies, and regularly published journals on teacher training to read and write about. Further studies based on a combination of bibliographic analysis and other methods may help paint a deeper picture of the research findings on this topic.
Volume: 14
Issue: 6
Page: 5014-5028
Publish at: 2025-12-01
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