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Contact Name
Jumanto
Contact Email
jumanto@mail.unnes.ac.id
Phone
+6281339762820
Journal Mail Official
shmpublisher@gmail.com
Editorial Address
Jl. Karanglo Raya No. 64, Pedurungan, Semarang, 50191, Indonesia
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Kota semarang,
Jawa tengah
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 64 Documents
Strengthening digital governance through it governance capability assessment using COBIT 2019 Aan Erlansari; Andang Wijanarko; Funny Farady Coastera; Yusran Panca Putra; Willy Novrian; Yudi Setiawan
Journal of Soft Computing Exploration Vol. 7 No. 3 (2026): September 2026
Publisher : SHM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52465/joscex.v7i3.228

Abstract

Digital transformation has become a strategic priority for public sector organizations; however, many initiatives fail to deliver sustainable benefits because IT governance capabilities have not evolved at the same pace as technological advancement. Although the COBIT 2019 framework has been widely adopted to assess IT governance capability, existing studies primarily emphasize capability measurement while providing limited guidance for governance improvement. This study aims to assess the capability level of selected IT Governance Objective using the COBIT 2019 Process Capability Model, identify governance gaps, and establish improvement priorities that support sustainable digital transformation. A mixed-method case study was conducted using interviews, observations, document reviews, and questionnaires involving organizational stakeholders. After data collection, the evidence was triangulated and then mapped through the COBIT 2019 Goals Cascade to identify the governance objectives included in the assessment. Capability levels were evaluated using the COBIT 2019 Process Capability Model and compared with organizational targets through gap analysis. The capability analysis suggests that although IT governance practices have been implemented, most processes remain at Capability Level 1 (Performed Process) because governance activities are not yet systematically formalized. Only EDM04 achieved Capability Level 2, while governance weaknesses were concentrated in workforce management, asset management, operational control, documentation, and performance monitoring. These findings demonstrate that governance capability, rather than technological limitations, remains the primary challenge for sustainable digital transformation and provide an evidence-based foundation for governance improvement.
Enhancing human capital management information systems through machine learning based prediction of employee self service adoption and single sign on usage Erwin Yulianto; Neneng Hayati; Lita Lestari Utami; Awan Setiawan; Harmansyah Nasution
Journal of Soft Computing Exploration Vol. 7 No. 3 (2026): September 2026
Publisher : SHM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52465/joscex.v7i3.234

Abstract

Although Single Sign On (SSO) simplifies access to Human Capital Management Information Systems (HCMIS), Employee Self Service (ESS) adoption remains a challenge in many organizations. This study aims to develop a machine learning framework for predicting ESS adoption and SSO usage and identifying the factors that influence employee digital engagement. A quantitative experimental approach was applied to a simulated dataset of 3,000 employee records containing demographic, behavioral, and system utilization variables. Data preprocessing included missing value imputation, categorical encoding, normalization, an 80:20 training and testing split, and SMOTE to address class imbalance. Eight classification models were evaluated using Accuracy, Precision, Recall, F1 score, and AUC ROC. The results show that SMOTEBoost achieved the best performance, with an Accuracy of 0.924, F1 score of 0.908, and AUC ROC of 0.956, followed by RUSBoost with an F1 score of 0.901 and AUC ROC of 0.951, and Balanced Random Forest with an F1 score of 0.897 and AUC ROC of 0.947. ESS Login Frequency, SSO Usage Frequency, and Training Participation were the strongest predictors of adoption. The proposed framework complements technology adoption perspectives such as TAM and UTAUT by moving beyond survey based explanations of perceptions and intentions toward predictive analysis using observable system utilization and behavioral data. This approach enables organizations to identify employees with lower adoption potential earlier and provide more targeted managerial interventions.
Evidence-constrained reproducibility audit of an archived YOLOv8-Fuzzy traffic prototype Edy Susanto; Wahyu Wijaya Widiyanto
Journal of Soft Computing Exploration Vol. 7 No. 3 (2026): September 2026
Publisher : SHM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52465/joscex.v7i3.243

Abstract

This research aims to determine which scientific claims remain supportable when an archived YOLOv8-fuzzy traffic prototype lacks essential experimental artifacts and to demonstrate a preliminary two-axis scheme for separating artifact status from validation status. The case comprised four unsynchronized road-video files, retained detector graphics and a count matrix, four snapshot-load/displayed-time pairs, and one interface state. The audit inventoried artifact provenance; classified evidence as unavailable, retained, deterministically recomputable, or assumption-dependently reconstructed; recalculated classwise and pooled precision, recall, and F1 from 1,853 true-class instances; and used uniformly sampled, constraint-filtered Mamdani parameter configurations to assess finite-data parameter non-uniqueness. Evaluation used recomputed detector metrics, internal consistency with retained timing pairs, and response-envelope widths over unobserved loads. Micro-precision, micro-recall, and micro-F1 were 0.905, 0.934, and 0.920, respectively, although cars and motorcycles contributed 99.6% of the available support. Three thousand accepted surrogate configurations matched the four retained timing pairs by design but diverged elsewhere, producing maximum envelope widths of 10.22-14.66 s. The archive therefore supported limited metric recomputation and interface-consistency analysis, but not detector generalization, recovery of the original controller, or operational traffic-control effectiveness. The scheme is intended for researchers, reviewers, and repository curators who must evaluate incomplete legacy intelligent-transportation or other soft-computing prototypes without overstating retained evidence.
Comparative performance of MLP, CNN, TabNet, and FT-Transformer for credit risk prediction with TPOT  hyperparameter optimization Much Aziz Muslim; Dwika Ananda Agustina Pertiwi; Jumanto Unjung; Sidiq Noor Kharisma; Gea Destadia Al-Zahra; Shahrul Nizam Bin Salahudin
Journal of Soft Computing Exploration Vol. 7 No. 3 (2026): September 2026
Publisher : SHM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52465/joscex.v7i3.250

Abstract

Credit risk prediction is important for supporting accurate lending decisions and reducing the potential risk of loan default. However, deep learning performance on tabular credit data can vary according to model architecture and TPOT hyperparameter configuration. Therefore, this study aims to comparatively evaluate Multilayer Perceptron, Convolutional Neural Network, TabNet, and FT-Transformer for credit risk prediction and examine the effect of TPOT hyperparameter optimization. The study uses the Lending Club dataset from 2007–2020, with 2,000 records from 2019–2020 sampled for analysis. The data were preprocessed through feature selection, missing-value handling, outlier treatment, categorical encoding, and feature scaling, while Synthetic Minority Over-sampling Technique was applied to address class imbalance. A stratified 70:30 train-test split was used, and the models were evaluated using accuracy, precision, recall, and F1-score before and after optimization. The results show that all four models improved after optimization, although the magnitude varied. Convolutional Neural Network achieved the highest optimized accuracy of 95.50%, while TabNet achieved the highest recall of 86.05% and F1-score of 86.29%. Multilayer Perceptron obtained the highest precision of 91.02%, whereas TabNet achieved the largest F1-score improvement of 6.84 percentage points. Overall, TPOT hyperparameter optimization improved model performance, with TabNet providing the most favorable overall balance for credit risk prediction.