Articles

Access the latest knowledge in applied science, electrical engineering, computer science and information technology, education, and health.

Filter Icon

Filters article

Years

FAQ Arrow
0
0

Source Title

FAQ Arrow

Authors

FAQ Arrow

29,922 Article Results

Machine identification codes of color laser printers: revisiting privacy and security

10.11591/ijeecs.v40.i1.pp137-145
Shreya Arora , Rajendra Kumar Sarin , Pooja Puri
Forging legal documents has been easier and faster with the advancement of technology. Printer identification has become a critical field for tracing criminals and validating the authenticity of documents. The current study uses a non-destructive method to detect and identify covert embedded hidden information (machine identification codes (MIC)). Samples were collected from popular brands, including Xerox and HP color laser printers, to attain this aim. Their printouts were then scanned at 600 dpi using a Konica Minolta scanner. Scanned images were subjected to graphic editors for linear and non-linear adjustments. Following this, yellow-toner dots were observed as a base pattern. Grayscale imaging with a computational approach to analyze the yellow dot patterns was utilized for intensity-focused analysis, with edge detection algorithms applied using Python to enhance and highlight the converted patterns in printed documents. The printouts from Xerox printers exhibited repeating patterns. However, no such detailed information was observed in prints from HP printers, even when analyzed using binary code for deductions. A notable variation was detected in the yellow tracking dots among both brands, which can be instrumental in identifying the origin of printouts and scanned images for forensic investigations. This methodology provides conclusive and dependable accuracy.
Volume: 40
Issue: 1
Page: 137-145
Publish at: 2025-10-01

Technical-economic analysis for ON/OFF GRID solar photovoltaic system design

10.11591/ijeecs.v40.i1.pp93-107
Walter Naranjo Lourido , Oscar Mauricio Niño Archila , Daniel Eduardo Guarin Preciado , Omar Yesid Beltrán Gutierrez , Javier Eduardo Martínez Baquero
This manuscript presents a detailed techno-economic analysis of a hybrid solar photovoltaic (PV) system designed to operate in both grid-connected (ON GRID) and stand-alone (OFF GRID) modes. The study focuses on the Leonardo Da Vinci academic building at Universidad de Los Llanos, located in Villavicencio, Colombia, in the tropical Orinoquía region. Using local solar irradiance, temperature data, and real load profiles from the facility, the system was modeled to assess performance under true operating conditions. A key part of the system design involved a detailed shadow analysis to identify potential obstructions and optimize solar access. This step significantly improved the accuracy of energy yield predictions and contributed to long-term system reliability. Additionally, regression-based methods were used to determine optimal panel tilt angles and refine system sizing based on peak sun hours. Both ON GRID and OFF GRID configurations were evaluated in terms of energy output, levelized cost of electricity (LCOE), net present value (NPV), and internal rate of return (IRR). Results show that ON GRID systems are financially advantageous in urban environments with net metering, while OFF GRID systems are critical for ensuring energy autonomy in remote or underserved areas. The findings provide practical insights for the deployment of hybrid PV systems in institutional settings across equatorial regions.
Volume: 40
Issue: 1
Page: 93-107
Publish at: 2025-10-01

A multi-path routing protocol for IoT-based sensor networks

10.11591/ijeecs.v40.i1.pp225-235
Udaya Suriya Rajkumar Dhamodharan , Krishna Prasad Karani , Saranya Pichandi , Kavitha Palani , Sathiyaraj Rajendran
Internet of things (IoT) based sensors are to link a big number of low-cost and power-integrated devices in a reliable manner. Numerous military and adventurous applications are regulated by communication among IoT sensors. The multi-path routing protocol (MRP) approach presented in this research to enhance secure routing in IoT sensors is significant. This technique makes use of data transfer routing and the relationships between network components. It finds the most efficient route between the nodes that minimizes communication overhead and is both reliable and economical in terms of shortest duration. The particle swarm optimization (PSO) technique is used to find the shortest path that is most cost-effective. To reach the target node, end-to-end data transmission must transit via intermediary nodes, which are provided by the routing path node history. The optimal path is chosen by MRP from PSO, and it traces the path to identify the intermediate nodes. In the unlikely event of a crisis, MRP offers the most affordable backup route for data transfer. When compared to earlier techniques, the outcomes of these current approaches enhance network efficiency, balance energy consumption among nodes, and routing attacks.
Volume: 40
Issue: 1
Page: 225-235
Publish at: 2025-10-01

A hybrid intelligent model for prediction of coronary artery diseases using TabNet and multiclass SVM

10.11591/ijeecs.v40.i1.pp156-163
Niveditha Honnemadu Rudreshgowda , Balakrishna Kempegowda , Anitha Sammilan
Cardiovascular disease is one of the significant fatality-causing diseases in this era by affecting the heart and blood vessels. Cardio diseases are classified into coronary heart disease (CHD), heart failure, valve disease, and arrhythmias. Medical diagnosis of heart disease and treating the patient is a challenging process, where early detection can lead to decreased fatality. In this research, hybrid model-based prediction of CHD detection is developed by TabNet and multiclass support vector machine (SVM). We created our datasets for experimentation by visiting the hospitals in the Mysore and Mandya regions of Karnataka, India. Datasets consist of 16 features; the features are pre-processed to normalize, encode, and handle missing values to extract the aggregate features using TabNet, and the multiclass SVM model is trained to classify the disease based on the classes. The proposed hybrid model prediction performance was evaluated using various metrics such as accuracy, recall, precision, and F1-score.
Volume: 40
Issue: 1
Page: 156-163
Publish at: 2025-10-01

Gender identification from tribal speech using several learning techniques

10.11591/ijeecs.v40.i1.pp316-326
Subrat Kumar Nayak , Kumar Surjeet Chaudhury , Nirmal Keshari Swain , Yugandhar Manchala , Ajit Kumar Nayak , Smitaprava Mishra , Nrusingha Tripathy
Language processing and linguistics researchers are interested in gender identification through audio, as human voices have many distinctive features. Although several gender identification algorithms have been developed, the accuracy and efficiency of the system can still be improved. Despite extensive studies on the topic in various languages, there aren’t many studies on gender identification in the KUI language. Using a variety of machine learning (ML) and deep learning (DL) classifiers, including decision tree (DT), multilayer perceptron (MLP), gradient boosting (GB), linear discriminant analysis (LDA), recurrent neural networks (RNN), long short-term memory (LSTM), gated recurrent units (GRU), and transformer, the goal of this study is to assess the accuracy of gender identification among diverse KUI language speakers. To verify the effectiveness of the suggested model, several prediction evaluation metrics were calculated, such as the area under the receiver operating characteristic curve (AUC), F1-score, precision, accuracy, and recall. While the findings are compared to other learning models, the gradient-boosting strategy yielded better results with an accuracy rate of 97.0%.
Volume: 40
Issue: 1
Page: 316-326
Publish at: 2025-10-01

Design of high-efficiency microinverter for a photovoltaic system with low harmonic distortion

10.11591/ijeecs.v40.i1.pp67-77
Walter Naranjo Lourido , Jhon Manuel Sanchez Fierro , Diana Paola Monroy Cadena , Javier Eduardo Martínez Baquero
This article presents the design of a modular pure sine wave microinverter with a high-efficiency maximum power point tracking (MPPT) regulator for photovoltaic (PV) systems. The design starts with a DC/DC buck-boost chopper regulator, simulated using the perturb and observe (P&O) algorithm. Next, a high-frequency DC/AC conversion stage is implemented using a toroidal transformer to achieve various voltage levels and isolated power sources. Finally, a 27-level multilevel inverter is designed to produce a pure sine wave with minimal total harmonic distortion (THD). Simulation results indicate that the microinverter achieves a total efficiency of 90% and produces a pure wave output with 3% harmonic distortion. Compared to commercial solutions, the proposed design enhances efficiency while integrating key components. Additionally, the system maintains a cost-effectiveness and directly proportional to its energy efficiency, making it a viable and cost-effective solution for PV energy conversion.
Volume: 40
Issue: 1
Page: 67-77
Publish at: 2025-10-01

Sentiment analysis of YouTube videos comments for children using machine learning and deep learning

10.11591/ijeecs.v40.i1.pp397-410
Amal Alrehaili , Abdullah Alsaeedi , Wael M.S. Yafooz
Nowadays, online connectivity is increasing with the rapid growth of the world wide web. Consequently, content shared across numerous platforms varies in appropriateness. it is necessary to ensure the suitability of the content since children are among the consumers of online content. A lot of children watch videos on YouTube these days, and such platforms can contain useful content. However, such videos can also have a negative impact on children. The suitability of these videos can be determined through sentiment analysis to refine the content for children on YouTube, by classifying the posted comments as either positive or negative. Therefore, this study utilizes natural language processing methods, machine learning classifiers (MLCs) and deep learning models (DLMs) to detect and classify negative user comments using the proposed dataset. Different MLCs such as random forest (RF), logistic regression (LR), multinomial Naïve Bayes (MNB), decision tree (DT), K-nearest neighbour (KNN), AdaBoost, and support vector machine (SVM) have been used. Additionally, DLMs were also used such as artificial neural network (ANN), convolutional neural network (CNN) and long short-term memory (LSTM). Overall, the experimental results showed that the LR, RF, AdaBoost, ANN and LSTM classifiers outperformed all the other classifiers in terms of accuracy.
Volume: 40
Issue: 1
Page: 397-410
Publish at: 2025-10-01

A comprehensive analysis of smartphones and tablets in graphic design and digital art

10.11591/ijeecs.v40.i1.pp146-155
Jirawat Sookkaew , Nakharet Chaikaew , Nakarin Chaikaew
This paper discusses how smartphones and tablets have changed creativity and graphic design. These portable tools and easy apps have transformed the creative process, allowing artists, designers, and students to create high-quality work anywhere. Mobile design apps promote creativity, accessibility, and skill development across broad user groups, according to the study. Unlike desktop tools, it addresses key constraints. Mobile apps sometimes struggle with smaller screens, restricted processing power, and reduced capabilities for complicated tasks like multi-layer editing and advanced graphics. These restrictions may inhibit expert designers working on complex, precise designs. Even Nevertheless, mobile technology like larger screens, stylus support, and cloud-based solutions are making mobile devices more feasible for creative work. The findings emphasise the relevance of integrating mobile technology into education and professional workflows and its complementarity to desktop solutions for resource-intensive jobs. In the developing digital landscape, our dual-platform approach maximizes creativity and flexibility.
Volume: 40
Issue: 1
Page: 146-155
Publish at: 2025-10-01

A centroid-based algorithm for measuring and tracking vehicle speed from a monocular camera using the YOLOv8 object detector

10.11591/ijeecs.v40.i1.pp437-449
Pankaj Kumar Gautam , Sanjeev Kumar
Accurate real-time vehicle speed measurement is crucial for enhancing road safety and advance intelligent transportation systems (ITS). This paper proposes a centroid-based tracking algorithm that integrates YOLOv8, a state-of-the-art object detector, with DeepSORT for robust multi-object tracking. By leveraging YOLOv8’s anchor-free detection and DeepSORT’s appearance-based association, the proposed method effectively mitigates occlusions and minimizes identity switches. Evaluations on the VS13 benchmark dataset reveal a 2–5% improvement in measurement accuracy as compared to existing solutions, while maintaining real-time performance at 30 FPS. The method demonstrates consistent reliability across different vehicle models, speeds, and lighting conditions, underscoring its adaptability to real-world traffic scenarios. Moreover, larger bounding boxes enhance tracking stability, reducing false detections. Overall, the approach’s low computational overhead and high accuracy position it as a practical solution for ITS applications in constrained environments.
Volume: 40
Issue: 1
Page: 437-449
Publish at: 2025-10-01

Wind farm integration with the objective of transmission expansion power in South Africa

10.11591/ijeecs.v40.i1.pp34-46
Nomihla Wandile Ndlela , Katleho Moloi , Musasa Kabeya
Growing renewable energy (RE) use mitigates climate change. The integration of large-scale intermittent renewable energy resources (RER) like wind energy into electrical networks has increased during the past decade. However, careful planning is needed to accommodate the long-term energy demand increase. Transmission network expansion planning (TNEP) is the methodical and profitable process of increasing power infrastructure to meet predicted electricity demand while preserving reliability. This article is for those interested in integrating renewable energy sources (RES) into HVTL to increase power availability and decrease losses. The Eros-VuyaniNeptune 400 kV transmission powerline connecting KwaZulu-Natal to the Eastern Cape is used in this study. It was implemented during the transfer of affected residents in the Ingquza Hill Local Municipality, which includes Lusikisiki and Flagstaff villages. This study connects the existing Metro wind farm to the Vuyani substation, which is connected to the Eros substation through a 400 kV transmission line. This research enhanced transmission line power while preserving grid stability with a 27 MW wind farm, and also increased external grid reserve capacity for future usage or unexpected power demand. This paper outlines TNEP’s significant advances using classic (mathematical) and advanced (heuristic and meta-heuristic) optimization approaches.
Volume: 40
Issue: 1
Page: 34-46
Publish at: 2025-10-01

An algorithm for training neural networks with L1 regularization

10.11591/ijai.v14.i5.pp3781-3789
Ekaterina Gribanova , Roman Gerasimov
This paper presents a new algorithm for building neural network models that automatically selects the most important features and parameters while improving prediction accuracy. Traditional neural networks often use all available input parameters, leading to complex models that are slow to train and prone to overfitting. The proposed algorithm addresses this challenge by automatically identifying and retaining only the most significant parameters during training, resulting in simpler, faster, and more accurate models. We demonstrate the practical benefits of the proposed algorithm through two real-world applications: stock market forecasting using the Wilshire index and business profitability prediction based on company financial data. The results show significant improvements over conventional methods: models use fewer parameters–creating simpler, more interpretable solutions–achieve better prediction accuracy, and require less training time. These advantages make the algorithm particularly valuable for business applications where model simplicity, speed, and accuracy are crucial. The method is especially beneficial for organizations with limited computational resources or that require fast model deployment. By automatically selecting the most relevant features, it reduces the need for manual feature engineering and helps practitioners build more efficient predictive models without requiring deep technical expertise in neural network optimization.
Volume: 14
Issue: 5
Page: 3781-3789
Publish at: 2025-10-01

Phishing URL prediction – two-phase model using logistic regression and finite state automata

10.11591/ijeecs.v40.i1.pp356-365
Nisha T N , Dhanya Pramod
The human factor in security is more important when they become the carriers of attacks on enterprises. Phishing attacks can be classified as insider attacks when the employees unintentionally participate in the attack propagation. Since complete user training is a myth, enterprises must implement detection tools for phishing attacks on their network perimeters. This research discusses a two-phase model for phishing URL detection, in which the first phase identifies the properties of URLs that detect phishing and their relative weight using logistic regression. The second phase checks the probability of a new URL being categorized as phishing using the knowledge achieved during the first phase using the dynamically created Finite state machines. The model defines a malicious score (MS), which can be used to check any URL in real-time to identify whether it is phishing or not. The model described in this work has been experimented with different benchmarking datasets to verify the performance. The model provided a decent result in classifying a URL as phishing or naive. The malicious score (MS) defined by this model can be used to evaluate any URL and can be used as a filtering mechanism for end-point phishing URL detection. The key contribution is towards developing a two-phase model which evaluates the URL with the help of self-crafted features without reliance on a feature set. This accommodates the model's hyper-competitive phishing URL detection area in cyber security.
Volume: 40
Issue: 1
Page: 356-365
Publish at: 2025-10-01

An intelligent system for job recommendation based on semantic analysis of candidate's resume

10.11591/ijeecs.v40.i1.pp450-460
Hardik Jain , Aparna Joshi , Deepali Naik , Rupali Gangarde , Ranjit Koragoankar , Yash Khapke , Varad Kulkarni
The contemporary job market presents significant obstacles to effectively aligning proficient candidates with pertinent employment prospects. The conventional methods of resume screening and job matching frequently require substantial manual effort and are susceptible to subjective biases, resulting in recruiting decisions that are frequently suboptimal. The present study proposes the development of an intelligent job recommendation system that utilises semantic analysis of candidates' resumes and job descriptions sourced from several job portals. The objective of the proposed intelligent system is to enhance and streamline the recruiting process through the automated extraction and analysis of pertinent skills from resumes and job descriptions, utilising natural language processing (NLP) and machine learning (ML) techniques. In addition, web scraping techniques were used to collect job advertisements from several job portals. The developed model exhibits the ability to recommend the most suitable job prospects by computing similarity metrics, such as Euclidean distance, between skill clusters identified in a job advertisement and a specified candidate's resume. The implemented model achieves an accuracy rate of 98.92%. It is anticipated that the integration of an intelligent job recommendation system will augment the recruitment procedure for both job seekers and employers.
Volume: 40
Issue: 1
Page: 450-460
Publish at: 2025-10-01

Analysis and evaluation about the dimmable light affect positioning-based MISO visible light communication

10.11591/ijeecs.v40.i1.pp181-188
Trang Nguyen , Dat Vuong
Visible light communication (VLC) is a new on-trend communication technology which offers high-speed data rate, great deployment potential in indoor enviroment. In VLC scenario, the positioning based on visible light communication (VLCP) has become one of interesting application of researchers. Most of existing proposed VLCP algorithms focused on mathematical analysis of multi-dimensional perspective based on the received signal strength (RSS) to enhance the accuracy without the consideration of dimming. However, regarding to physical characteristics of VLC devices and requirement of illumination, the light is increasingly dimmable along the time which leads to decrease transmitted optical power of LED as well as RSS received at the photodetector (PD)). Inspired by the above-mentioned constraints, this paper proposed the mathematical model to analyses the effect of dimming capability on the state-of-art RSS based positioning algorithms. Evaluation of the proposed model based on the metrics of RSS and position error (PE) is conducted on Matlab.
Volume: 40
Issue: 1
Page: 181-188
Publish at: 2025-10-01

Alzheimer’s disease stage prediction using a novel transfer learning-Alzheimer’s network architecture

10.11591/ijeecs.v40.i1.pp518-529
Pothala Ramya , Chappa Ramesh , Odugu Srinivasa Rao
The root cause of Alzheimer’s disease (AD) is unknown except for a very tiny number of family instances caused by a genetic mutation. A thorough examination of particular brain disorders’ tissues is necessary to correctly identify the circumstances using scans of magnetic resonance imaging (MRI), and specific non-brain tissues, like the neck, skin, muscle, and fat, make further investigation challenging and can be seen in MRI scans. This work aims to use the FSL-BET skull stripping tool to remove non-brain tissues and extract the significant region of the brain- deep learning (DL) techniques rather than machine learning (ML) models helpful in classification and predictions. The most frequent issue with DL models is which needs a lot of training data, causes to problems with class imbalance. To avoid imbalance issues, we used data augmentation to ensure that the samples were distributed equally among the classes. A novel transfer learning Alzheimer’s disease network (TL-AzNet) based visual geometry group-19 (VGG19) technique was developed in this study. Conducted a comparison study using the base and suggested models, comparing over data with oversampling versus non-oversampling. The novel model predicted AD with a 95% accuracy rate.
Volume: 40
Issue: 1
Page: 518-529
Publish at: 2025-10-01
Show 111 of 1995

Discover Our Library

Embark on a journey through our expansive collection of articles and let curiosity lead your path to innovation.

Explore Now
Library 3D Ilustration