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Contact Name
Jumanto
Contact Email
jumanto@mail.unnes.ac.id
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+6281339762820
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shmpublisher@gmail.com
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INDONESIA
Journal of Soft Computing Exploration
Published by shm publisher
ISSN : 27467686     EISSN : 27460991     DOI : https://doi.org/10.52465/joscex
The journal focuses on publishing high-quality, original research and review articles in the field of Soft Computing, Informatics and Computer Science, emphasizing the development, application, and rigorous evaluation of Advanced Computational Methods, Artificial Intelligence (AI), Machine Learning (ML), and Data Science to address complex real-world challenges. The scope of the journal includes, but is not limited to, innovative research in the following areas: 1. Artificial Intelligence and Machine Learning Novel Algorithms and Architectures: Development and comparison of ML/DL models for classification and prediction (including Logistic Regression, Ridge Classifier, SVM, k-NN, and Random Forest). Ensemble Learning: Evaluation and optimization of ensemble methods Balanced Random Forest, SMOTE-RF, SMOTEBoost, and RUSBoost for robust prediction. Data Challenges and Preprocessing: Techniques for mitigating issues like class imbalance (using methods like SMOTE and GAN) and feature extraction/dimension reduction techniques (including Principal Component Analysis (PCA) and Local Binary Pattern (LBP)). 2. Deep Learning and Computer Vision Convolutional Neural Networks (CNNs): Research on CNN architectures (VGG16, ResNet50, DenseNet121, EfficientNet, and MobileNetV2) and the impact of optimization functions (Adam, SGD, NAdam) on model performance. Hybrid and Concatenated Architectures: Proposing and evaluating hybrid models (MobileNetV2 combined with LBP) or concatenated architectures (MobileNetV2 and DenseNet201) to improve classification and feature representation. Image Analysis Tasks: Advanced techniques for image classification (specifically Diabetic Retinopathy), image similarity detection (using Siamese Networks and Test-Time Augmentation), and multi-object segmentation (using FCN with Squeeze-and-Excitation and Attention Mechanisms for palm oil images). 3. Data Science and Advanced Analytics Pattern Detection and Data Mining: Performance evaluation of data mining algorithms, including Biclustering (Cheng & Church and Spectral Biclustering), specifically under challenging structural conditions like collinearity and overlap. Time Series Analysis and Forecasting: Application of advanced decomposition and clustering methods (Ensemble Empirical Mode Decomposition (EEMD) and Time Series Clustering with DTW/ARIMA) for accurate economic or temporal prediction. 4. Applied Informatics (Domain-Specific Applications) Health and Medical Informatics: Classification models for disease diagnosis (including Heart Attack Disease and Diabetic Retinopathy). Agricultural Informatics: Automated detection and classification of plant diseases from leaf/crop images (including Mango Leaf Disease and Chili Plant Disease) and Palm Oil Segmentation. Business and Economic Informatics: Predictive modeling for crucial business metrics (Customer Churn Prediction in Telecommunications) and economic forecasting (Rice Price Forecasting).
Articles 32 Documents
Improving intrusion detection performance using bayesian hyperparameter optimization for supervised network traffic classification Dahlan Dahlan; Dadan Saepul Ramdan
Journal of Soft Computing Exploration Vol. 7 No. 2 (2026): June 2026
Publisher : SHM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52465/joscex.v7i2.87

Abstract

The rapid growth of networked systems has increased the complexity of network traffic and the risk of cyber-attacks, making intrusion detection more challenging. Machine learning approaches have been widely used to address this issue; however, their performance often depends on appropriate hyperparameter settings. This study examined the effect of Bayesian-based hyperparameter optimization on the performance of supervised machine learning models for network traffic classification. A publicly available dataset was used, consisting of various traffic-related features and labeled instances indicating normal or malicious activity. Several machine learning models, including Random Forest, Decision Tree, AdaBoost, Logistic Regression, Gradient Boosting, and Naïve Bayes, were evaluated. Each model was tested using default parameters and then optimized using Bayesian Optimization. The performance was assessed using accuracy, precision, recall, and F1-score. The results showed that ensemble-based models, particularly Gradient Boosting and Random Forest, achieved the best performance after optimization, with accuracy values above 89% and strong F1-scores. However, the findings also revealed a trade-off between precision and recall, where higher precision was often associated with lower detection of certain attack instances. In contrast, simpler models such as Logistic Regression showed lower performance, indicating their limitations in capturing complex patterns. Overall, the study demonstrated that Bayesian-based hyperparameter optimization contributed to improving model performance and provided a more reliable approach for network traffic classification.
Integrating vehicle dimension features for vision-based traffic density prediction using YOLOv5-LSTM architecture Filda Angellia; Nita Merlina; Agus Subekti; Rahmadya Trias Handayanto
Journal of Soft Computing Exploration Vol. 7 No. 2 (2026): June 2026
Publisher : SHM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52465/joscex.v7i2.119

Abstract

Traffic congestion in urban areas requires intelligent technology-based solutions to support modern transportation systems. This study proposes a vision-based traffic congestion prediction framework that integrates YOLOv5 with a sequential deep learning model to improve forecasting accuracy. YOLOv5 is used for real-time vehicle detection, while the width and height of the bounding box are extracted as spatial occupancy features to provide additional information beyond conventional vehicle counting methods. Experiments are conducted using six urban traffic videos consisting of 90,012 frames collected under various traffic conditions. The extracted features are converted into sequential temporal records and subsequently used to train Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU) models. Model performance is evaluated using Mean Squared Error (MSE), Root Mean Squared Error (RMSE), and Mean Absolute Error (MAE). Experimental results show that both models achieve competitive performance for traffic congestion forecasting. LSTM achieved the best performance with an MSE of 3.77, an RMSE of 1.94, and an MAE of 1.47, demonstrating its superior ability to capture long-term temporal dependencies in large-scale sequential traffic data. In contrast, GRU exhibited lower computational complexity and faster inference time due to its simpler architecture. These findings suggest that integrating vehicle dimensional features with sequential deep learning models provides a more effective approach to artificial intelligence.

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