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31,456 Article Results

Artificial intelligence-based multi-key security for protected and transparent medical cloud storage

10.11591/ijaas.v14.i4.pp1241-1250
Ravi Kiran Bagadi , Neelima Santoshi Koraganji , Bandreddi Venkata Seshukumari , Kavya Ramya Sree Karuturi , Sireesha Abotula , Bodapati Venkata Rajanna , Mahalakshmi Annavarapu , Nitalaksheswara Rao Kolukula , Jayasree Pinajala , James Stephen Meka
Ensuring the security and privacy for the patient medical records and medical reports data is a crucial challenge as cloud-based healthcare technologies become more prevalent. For cloud-hosted medical data, internet of things (IoT) and artificial intelligence (AI) technologies shows best solutions for the challenges in the medical domain. This study suggests a Secure and Transparent Multi-Key Authentication Framework that makes use of AI. Using Z-score normalization, the framework first preprocesses the data before clustering to create a multi-level multi-key security structure. The physics-informed triangulation aggregation neural network (PITANN) model in the study reduces computation costs by minimizing overhead, ensuring secure handling of location-based and medical data for enhanced data classification and encryption effectiveness. A multi-key derivation of an elliptic curve, the ElGamal cryptography scheme is presented, which allows for safe multi-key encryption with little increase in the length of the ciphertext. This method guarantees safe, confidential access to cloud-hosted encrypted health information. An envisioned amalgamation improves flexibility by enhancing performance metrics such as speed of computation while safeguarding patient information through enhanced security measures and ensuring precise medical record integrity within virtual healthcare systems.
Volume: 14
Issue: 4
Page: 1241-1250
Publish at: 2025-12-01

A survey on convolutional neural network hardware acceleration through approximate computing multiple and accumulates unit

10.11591/ijra.v14i3.pp366-375
Suvitha Pathiyadan Sudhakaran , Aathmanesan Thangakalai
Convolutional neural networks (CNNs) are applied to a different range of real-world complex tasks to provide effective solutions with high accuracy. Based on the application's complexity, CNN demands a lot of processing units and memory spaces for its effective implementation. Bringing this computational task to hardware for processing the data to enhance the acceleration helps in achieving real-time performance improvement. Recent studies focused on approximation methodology to overcome this problem. This proposed survey analyzes various recent methods involved in implementing approximating computing-based processing elements and their usage in CNNs. Primarily, the survey focuses on multiple and accumulates (MAC) unit and their various approximation methods, which acts as a fundamental block as a processing element in the CNN layers. Secondly, it focuses on various CNN hardware acceleration architectures and their layers designed using different methods and their wide range of applications. Some of the recent design methods applied to various ranges of applications are also analyzed in the proposed survey. This detailed analysis gives an outlook on effective approximation blocks and the CNN architecture to be effectively used in various designs, with a scope of area in which future improvement can be made.
Volume: 14
Issue: 3
Page: 366-375
Publish at: 2025-12-01

Analysis and implementation of computation offloading in fog architecture

10.11591/ijra.v14i3.pp479-492
Prince Gupta , Rajeev Sharma , Sachi Gupta , Adesh Kumar
The fast expansion of connected devices has led to an unparalleled increase in data across sectors like industrial automation, social media, environmental monitoring, and life sciences. The processing of this data presents difficulties owing to its magnitude, temporal urgency, and security stipulations. Computation offloading has arisen as a viable alternative, allowing resource-constrained devices to assign demanding work to more robust platforms, thus improving responsiveness and efficiency. This paper examines decision-making strategies for computing offloading by assessing various algorithms, including a deep neural network with deep reinforcement learning (DNN-DRL), coordinate descent (baseline), AdaBoost, and K-nearest neighbor (KNN). The performance evaluation centers on three primary metrics: system accuracy, training duration, and latency. The computation offloading mitigates these issues by transferring intricate workloads from resource-limited devices to more proficient platforms, thus enhancing efficiency and responsiveness. The evaluation examines accuracy, training duration, and latency as key parameters. The results indicate that KNN attains maximum accuracy and minimal latency, AdaBoost provides a robust balance despite increased training costs, and the baseline underperforms in both efficiency and responsiveness. These findings underscore the trade-offs between computational expense, precision, and real-time application, providing insights for forthcoming IoT and edge-computing systems.
Volume: 14
Issue: 3
Page: 479-492
Publish at: 2025-12-01

Investigating relationships between reading comprehension and oral reading fluency through AI-driven tool reading progress

10.11591/ijaas.v14.i4.pp1192-1199
Pham Duc Thuan , Pham Thi Tam
This study investigates the relationship between reading comprehension and oral reading fluency components—accuracy and rate—among 113 Vietnamese EFL university students using the AI-powered tool Microsoft Reading Progress. Over 14 weeks, students engaged in weekly oral reading and comprehension tasks using integrated Microsoft Teams features. Fluency metrics (accuracy and rate) and comprehension scores were automatically collected and analyzed using Pearson correlation. The results revealed weak but statistically significant positive correlations between reading comprehension and accuracy (r = .257, p < .01), and between comprehension and rate (r = .289, p < .01), suggesting that improvements in fluency modestly support comprehension. A strong correlation between accuracy and rate (r = .765, p < .01) was also observed. The study highlights the effectiveness of Reading Progress in capturing fluency data and promoting self-paced improvement. However, limitations such as the short duration, localized sample, and constraints of accent recognition in AI-based speech analysis affect the generalizability and validity of results. The findings support the pedagogical integration of AI tools in EFL instruction while calling for future research with larger samples, extended timelines, and diversified digital tools to further validate and expand on these results.
Volume: 14
Issue: 4
Page: 1192-1199
Publish at: 2025-12-01

Predicting Emirati student academic outcomes: school tracks and standardized tests

10.11591/ijere.v14i6.33951
Fatima Al-Ali , John Rice
Global education systems apply grouping strategies to enhance academic outcomes. The United Arab Emirates (UAE) has developed school tracks to address performance gaps by offering more varied high-school tracks while also creating a local Emirates Standardized Tests (EmSAT) for measurement. This study examines the impact of educational tracks in Emirati schools and EmSAT scores on UAE university students’ academic performance. A quantitative multivariate analysis of 3,190 University of Sharjah students compared the outcomes across different high school tracks and analyzed the predictive power of EmSAT scores on university cumulative grade point average (CGPA). EmSAT scores vary significantly by tracks, with elite students performing best, followed by those in the advanced and scientific tracks. Arabic and mathematics EmSAT scores predict CGPA more strongly than English, which has a moderate effect. General track students achieve higher CGPAs compared to other tracks, even after controlling EmSAT performance and gender, suggesting a complex relationship between high school experiences and university success. The findings highlight the track model’s effectiveness, with the elite fostering strong academic pathways. However, the overlap in university achievement between the general and advanced warrants further research. The study provides insights for policymakers to refine educational strategies and enhance student outcomes.
Volume: 14
Issue: 6
Page: 4592-4603
Publish at: 2025-12-01

ADC-LIO: A direct LiDAR-inertial odometry method based on adaptive distortion covariance

10.11591/ijra.v14i3.pp399-408
Lixiao Yang , Youbing Feng
Focusing on the localization challenges for robots in dynamic navigation environments, this study proposes a direct LiDAR-inertial odometry (LIO) system named ADC-LIO, which achieves robust pose estimation and accurate map reconstruction using adaptive distortion covariance. ADC-LIO is engineered to address uncertain motion patterns in autonomous mobile robots, effectively integrating LiDAR scan undistortion within the Kalman filtering update process by embedding an iterative smoothing process and a backpropagation strategy. The ADC-LIO architecture enhances point cloud accuracy, improving the system's overall performance and robustness. In addition, an adaptive covariance processing method is developed to resolve motion-induced sensing uncertainties, which calculates different covariances according to the error characteristics of the point cloud. This method enhances the constraints of high-quality point clouds, reduces the limitations on low-quality point clouds, and utilizes information more effectively. Experiments on the publicly available NTU-VIRAL dataset validate the effectiveness of ADC-LIO, which improves pose estimation accuracy and reduces absolute position errors compared to other state-of-the-art methods, including FAST-LIO, Faster-LIO, FR-LIO, and Point-LIO. The proposed ADC-LIO is an appealing odometry method that delivers accurate, real-time, and reliable tracking and map-building results, posing a practical solution for robotic applications in structured indoor and GPS-denied outdoor environments.
Volume: 14
Issue: 3
Page: 399-408
Publish at: 2025-12-01

Culture-based teaching practices of teachers in a Philippine-Chinese school: narratives and insights

10.11591/ijere.v14i6.33611
Remedios C. Bacus , Rivika C. Alda , Helen B. Boholano
Philippine-Chinese schools have been in existence for several decades. This study explores the influence of Chinese culture on Filipino teachers’ pedagogical and content delivery, language and social interaction, and their practices and constructions while teaching in a Chinese school. Through a descriptive–qualitative approach to explore the experiences, 12 non-Chinese teachers were purposively chosen to participate in the study. Guided by the validated interview guide and the qualitative data analysis steps by Braun and Clarke, six themes emerged: bilingual pedagogy, cultural values integration, language immersion, technology in education, thriving through diversity, support and collegiality. The study revealed the enriching interaction between Chinese cultural influences and Filipino teaching practices, suggesting the need for ongoing professional development that enhances cultural competence, innovative pedagogical strategies, and supportive teaching communities.
Volume: 14
Issue: 6
Page: 5080-5093
Publish at: 2025-12-01

Determinants of integrated teaching capacity among teachers in ethnic minority primary schools in northern Vietnam

10.11591/ijere.v14i6.30087
Hang Nguyen Thi Thu , Chuyen T. H. Nguyen
This study explores factors affecting the integrated teaching capacity of primary school teachers in ethnic minority schools in the Northern mountainous regions of Vietnam. Given the challenges of linguistic and cultural diversity in this context, the research aims to address gaps in current practices and propose measures for improvement. A quantitative approach was adopted, surveying 280 teachers and administrators using exploratory factor analysis (EFA) and multivariate regression. The results identify four primary factors influencing teaching capacity: i) language, culture, and parent coordination; ii) teacher capacity and community participation; iii) teaching materials, equipment, and teacher attitudes; and iv) policies and support from management agencies. Among these, language, culture, and parent coordination are the most impactful. The study underscores the need for targeted teacher training programs and improved collaboration with local communities to enhance teaching outcomes. These findings provide actionable insights for policymakers and educators to improve integrated teaching in ethnically diverse and economically challenged regions.
Volume: 14
Issue: 6
Page: 4295-4306
Publish at: 2025-12-01

Explore activities management to support the care and education of public preschools

10.11591/ijere.v14i6.33235
Thuan Van Pham , LongAn Dang Nguyen
This study aims to explore the contents of the management of support activities for care and education, as well as the impacts of these activities on improving the quality of support and care for children in public preschools in Thu Duc city, Vietnam. To achieve this purpose, qualitative and quantitative research methods were used through the evaluation of relevant documents. At the same time, a survey of 175 people, including managers, teachers, and parents of students, was conducted. The research results show that although the management of support activities for care and education for children in public preschools has achieved some good results, it still reveals many limitations that need to be identified and addressed with appropriate solutions. Based on the assessment of the current situation and identification of the causes, this study has proposed suitable solutions to improve the quality of support activities for care and education for children in public schools in Thu Duc city.
Volume: 14
Issue: 6
Page: 4555-4566
Publish at: 2025-12-01

A method integral sliding mode control to minimize chattering in sliding mode control of robot manipulator

10.11591/ijra.v14i3.pp345-355
Mai Hoang Nguyen , Truc Thi Kim Nguyen
This paper presents an improved sliding mode control (SMC) strategy for robotic manipulators by introducing a novel exponential integral-based adaptive gain law, referred to as integral sliding mode control (ISMC). The proposed approach dynamically adjusts the switching gain KKK in real-time, based on the accumulated system error, thereby effectively reducing chattering while preserving system robustness. Unlike many existing methods, the ISMC strategy eliminates the need for state observers or complex estimation techniques, simplifying implementation. Theoretical analysis is provided using Lyapunov stability theory, ensuring global convergence. Simulation results on 2-DOF and 3-DOF robotic arms demonstrate superior tracking accuracy and smoother control signals compared to conventional SMC approaches. This work contributes a lightweight yet effective SMC enhancement with practical benefits for real-world robotic applications.
Volume: 14
Issue: 3
Page: 345-355
Publish at: 2025-12-01

Prediction index drought use neural network based rainfall

10.11591/ijaas.v14.i4.pp1146-1154
Nur Nafiiyah , Ali Mokhtar
Prolonged dry seasons compared to rainy seasons often lead to drought, making drought index observations essential. In Indonesia, drought monitoring commonly uses the standardized precipitation index (SPI), yet there is no common standard for drought index measurement. Therefore, this research applies the Z-score index (ZSI) and China-Z index (CZI), which, like SPI, are rainfall-based drought indices but have rarely been explored in previous research. To predict ZSI and CZI, this research compares the weighted moving average (WMA) and multilayer perceptron (MLP) methods. Two input scenarios are tested: the previous two periods (t-2, t-1) and the previous three periods (t-3, t-2, t-1). The results show that MLP outperforms WMA, with the best performance achieved by the MLP model at a mean absolute percentage error (MAPE) of 4.177% using the three variable input scenario and MLP architecture 3-6-10-1.
Volume: 14
Issue: 4
Page: 1146-1154
Publish at: 2025-12-01

Factors affecting career orientation: indigenous ethnic minority students in Vietnam’s Central Highlands

10.11591/ijere.v14i6.34954
Phung Viet Hai , Tran Thi Huong Xuan , Phung Thi To Loan , Nguyen Thi Thanh Phuong
Career orientation competency (COC) plays a crucial role in preparing students for lifelong learning and labor market adaptability. However, existing research has largely overlooked how this competency develops among indigenous ethnic minority students in culturally diverse and educationally disadvantaged contexts such as Vietnam’s Central Highlands. Addressing this gap, the present study adopts the social cognitive career theory (SCCT) to examine how personal, contextual, and behavioral factors interact to shape COC in this population. SCCT serves not only as a conceptual lens but also informs the development of the research model and interpretation of findings. A quantitative approach was employed using cross-sectional survey data collected from 669 ethnic minority students. Analytical techniques included reliability analysis (Cronbach’s alpha), exploratory factor analysis (EFA) for construct validation, and multiple linear regression to test predictive relationships. Results revealed six key determinants of COC: self-awareness (SA), expectations for results (ER), personal goals (PG), community connection (CC), career exploration (CE), and cultural identity (CI). Notably, CI had the most significant effect (β=0.308), suggesting its central role in guiding career-related behaviors. These findings have important implications for both theory and practice. They extend SCCT by integrating culturally specific constructs relevant to marginalized communities and they highlight the need for context-responsive career guidance programs that recognize and leverage students’ cultural identities. The study contributes to the empirical foundation for inclusive education policy reforms targeting ethnic minority youth in Vietnam.
Volume: 14
Issue: 6
Page: 4711-4723
Publish at: 2025-12-01

Antecedents and consequences of memorable experience in the airline industry: service robots versus human staff

10.11591/ijra.v14i3.pp409-417
Jinsoo Hwang , Ja Young (Jacey) Choe , Kyuhyeon Joo , Jinkyung Jenny Kim
The study aims to examine the type of service providers, such as service robots and human staff, as a potential moderator in the relationship between SERVQUAL and memorable experience in the airport industry. In order to verify 15 hypotheses, data were collected from 313 travelers who acquired information from service robots and 313 travelers who acquired information from human staff at the airport. The results of data analysis revealed that the five sub-dimensions of SERVQUAL, including tangibles, reliability, responsiveness, assurance, and empathy, enhance memorable experience. In addition, a memorable experience has a positive effect on customer satisfaction, which subsequently influences attitude and intention to use. In addition, the type of service providers moderated the links between i) responsiveness and memorable experience and ii) empathy and memorable experience.
Volume: 14
Issue: 3
Page: 409-417
Publish at: 2025-12-01

Beat the cheat: tendencies of academic misconduct and teachers’ interventions

10.11591/ijere.v14i6.34757
Lauro Santiago Aspiras , Emma Daynos Aspiras
This research employed an explanatory sequential mixed-methods approach, integrating quantitative and qualitative techniques across two phases to explore the prevalence of academic misconduct (AM) and the interventions implemented by educators. Data were gathered from randomly selected students and purposively chosen teachers using structured and semi-structured questionnaires, based on specific criteria. The findings revealed significant occurrences of AM among students, including practices such as plagiarism, copying from websites, and sharing quiz answers via social media. Teachers also reported these behaviors, highlighting the multifaceted motivations behind students’ engagement in AM. In response to these challenges, educators implemented a range of interventions. These included confirmatory communication through phone calls and text messages, the introduction of gamified learning activities, constructive feedback on plagiarized work, and supportive outreach via private messages. In some cases, home visits were conducted to reinforce accountability. The study identified four key outcomes of these interventions: student compliance with academic integrity measures, acceptance of the consequences of misconduct, receptivity to feedback, and the phenomenon known as “Ningas Kugon” mentality, which describes inconsistent or transient changes in student behavior. Hence, this inquiry provides valuable insights into the dynamics of AM and the effectiveness of various educator interventions.
Volume: 14
Issue: 6
Page: 4329-4339
Publish at: 2025-12-01

Utilization of innovative educational applications for developing the spiritual and creative potential of future educators

10.11591/ijere.v14i6.32125
Elvira Yeshenkulova , Kulimkhan Arymbayeva , Gulzhan Maulenberdieva , Dinara Yeshenkulova , Ulzharkyn Abdigapbarova , Kristina Kolesnik
Contemporary training of future educators necessitates the development of not only professional but also spiritual and creative qualities. This study aims to evaluate the effectiveness of an online course utilizing a chatbot to enhance the spiritual and creative potential of students in pedagogical disciplines. The research involved 534 of 4thyear students from two universities in Kazakhstan, divided into an experimental group (n=268) and a control group (n=266). The experimental group completed six modules covering creative thinking, spiritual development, public speaking, and other aspects of self-development. Pre- and post-course surveys assessed five indicators of spiritual health: vitality, resilience, values, meaning, and openness to change. The intervention resulted in a significant improvement in three key indicators: resilience, values, and meaning. These enhancements are likely to contribute to better preparation of future educators by strengthening their resilience to professional challenges, helping them understand their values and goals, and enhancing their awareness of the significance of education for society.
Volume: 14
Issue: 6
Page: 5129-5139
Publish at: 2025-12-01
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