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INDONESIA
Indonesian Journal of Infomatics
Published by Asosiasi Pengelola Jurnal Informatika dan Komputer Indonesia
ISSN : -     EISSN : 3124033X     DOI : 10.66472
Core Subject :
Aims The Indonesian Journal of Informatics aims to publish high-quality research articles and scholarly works in the field of informatics and computing that contribute to the advancement of theory, technology, and practical applications of information and communication technologies to support innovation, problem-solving, and digital transformation at national and global levels. Focus and Scope The journal focuses on, but is not limited to, the following areas: Information systems and information technology applications Software engineering and system development Data science, big data, and analytics Artificial intelligence and intelligent systems Computer networks, cybersecurity, and network management Multimedia, visualization, and interactive technologies Computer architecture, embedded systems, and IoT Informatics education, curriculum, and learning technologies Emerging technologies and interdisciplinary informatics research
Arjuna Subject : -
Articles 9 Documents
 1 
Integrating Multimodal Data Processing Techniques to Enhance User Experience Evaluation in Interactive Digital Platforms Khoirudin Khoirudin; Nurtriana Hidayati
Indonesian Journal of Infomatics Vol. 1 No. 1 (2026): February: Indonesian Journal of Infomatics
Publisher : Asosiasi Pengelola Jurnal Informatika dan Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66472/iji.v1i1.26

Abstract

User experience (UX) evaluation plays a crucial role in understanding how users interact with digital platforms and in improving product design. Traditional UX evaluation methods, such as surveys and interaction logs, often rely on a single data source, which limits the depth of analysis. This study explores the integration of multimodal data processing techniques in UX research, aiming to enhance the accuracy and comprehensiveness of UX evaluations. By combining interaction logs, visual attention data, and physiological measurements, this approach provides a more holistic understanding of user behavior, emotional responses, and satisfaction. Interaction logs offer objective data on user actions, while eye-tracking and physiological data capture users' emotional states, providing richer insights into usability and user experience. This study highlights the effectiveness of multimodal integration in identifying patterns that traditional methods overlook, such as emotional responses to interface elements and real-time feedback from users. The findings reveal that multimodal data processing improves the precision of UX assessment by combining objective behaviors with subjective emotional responses, offering a more complete view of user interactions. The study also discusses the challenges of data synchronization and the potential ethical concerns related to the use of physiological data. The integration of these data sources shows great potential for enhancing the design process, allowing designers to make informed decisions based on comprehensive insights. Finally, this research underscores the future potential of multimodal analytics in UX research, suggesting further exploration of additional data modalities and real-time applications in various digital environments.
Assessing Software Architecture Resilience Using Quantitative Metrics in Cloud Native Application Development Environments Eko Siswanto; Danang Danang; Ismi Kusumaningroem; Ilham Akhsani
Indonesian Journal of Infomatics Vol. 1 No. 1 (2026): February: Indonesian Journal of Infomatics
Publisher : Asosiasi Pengelola Jurnal Informatika dan Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66472/iji.v1i1.27

Abstract

Cloud native architectures are essential for modern software systems due to their ability to handle dynamic environments, scalability, and high availability. However, ensuring resilience in these systems remains a significant challenge, particularly under varying operational conditions such as high-load periods and failure scenarios. This study aims to assess the resilience of cloud native architectures using quantitative metrics that objectively evaluate key attributes such as availability, fault tolerance, recovery time, and scalability. Through the application of these metrics, the study identifies the strengths and weaknesses of the architecture, providing insights into how the system performs under stress and recovers from failures. The results show that while the architecture demonstrates strong availability and scalability under typical conditions, recovery time and scalability under extreme load conditions reveal areas for improvement. Specifically, issues with resource allocation and self-healing capabilities were identified as key weaknesses affecting the overall resilience of the system. These findings highlight the importance of using data-driven metrics to gain detailed insights into system resilience and to guide architectural improvements. The study also emphasizes the need for continuous monitoring and adaptation of the architecture to optimize fault tolerance and recovery processes. The implications of this research extend to cloud application developers and architects, offering actionable recommendations for improving system resilience. Future research could focus on integrating real-time monitoring systems, developing more advanced resilience metrics, and incorporating AI-driven scaling techniques to further enhance the adaptability and robustness of cloud native systems. By addressing these challenges, cloud native architectures can be better equipped to maintain high performance and reliability in dynamic, real-world environments.
An Adaptive Computational Model for Detecting Concept Drift in Long Term Data Streams Using Incremental Learning Approaches Rinna Rachmatika; Kecitaan Harefa
Indonesian Journal of Infomatics Vol. 1 No. 1 (2026): February: Indonesian Journal of Infomatics
Publisher : Asosiasi Pengelola Jurnal Informatika dan Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66472/iji.v1i1.28

Abstract

Concept drift, the phenomenon where the statistical properties of data streams change over time, poses a significant challenge in machine learning, particularly for long term data streams. Traditional machine learning models, including batch learning and non-adaptive approaches, struggle to detect and adapt to these changes, leading to degraded performance and inaccurate predictions. This study proposes an adaptive computational model designed to detect and respond to concept drift using incremental learning techniques and statistical drift detection mechanisms. The model integrates an Adaptive Drift Detector (ADD) and Incremental Learning System, enabling real-time adjustments to data distribution changes. The model is evaluated across synthetic and real-world datasets, demonstrating its superior ability to detect abrupt, gradual, and recurring drifts compared to traditional models. Experimental results indicate that the adaptive model maintains high prediction accuracy, minimizes false positive rates, and reduces detection delays. Furthermore, the model performs well in resource-constrained environments, making it suitable for real-time applications such as healthcare prediction, fault detection, and IoT systems. Despite its promising performance, the study identifies challenges related to computational complexity and the model’s performance with imbalanced datasets and noisy data. Future research should focus on optimizing the model’s scalability, computational efficiency, and adaptability to more complex data types to ensure broader applicability in dynamic environments. This work contributes to advancing the detection and adaptation of concept drift, offering a robust solution for dynamic and evolving data streams.
Modeling Human Algorithm Interaction to Improve Trust and Reliability of Intelligent Decision Support Systems in Data Driven Organizations Siska Narulita; Prihati Prihati; Ahmad Nugroho
Indonesian Journal of Infomatics Vol. 1 No. 1 (2026): February: Indonesian Journal of Infomatics
Publisher : Asosiasi Pengelola Jurnal Informatika dan Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66472/iji.v1i1.30

Abstract

This research explores the role of human algorithm interaction mechanisms in enhancing trust, reliability, and user confidence in Decision Support Systems (DSS). Traditional DSS models often focus solely on algorithmic accuracy and performance, neglecting crucial factors such as transparency and user engagement, which are essential for building trust. By incorporating explainable AI (XAI) techniques like SHAP and LIME, real-time feedback mechanisms, and user-friendly interfaces, the study develops structured interaction models that improve the interpretability of AI-driven decisions. The results show that transparent decision-making processes and interactive features significantly enhance user trust, making DSS more reliable and easier to adopt. Users interacting with systems that provide clear, understandable explanations of decisions, along with real-time updates on the system’s confidence, reported higher levels of decision-making confidence, especially in high-stakes scenarios. These improvements lead to greater user engagement and adoption of the system in various domains, including healthcare and finance. The study also highlights the importance of balancing interpretability with efficiency in user interface design to ensure both trust and usability. The findings contribute to the design of more user-centric DSS that prioritize trust, interpretability, and cognitive factors, providing a framework for the successful integration of intelligent decision support systems in complex decision-making environments. Future research should focus on refining interaction models and exploring the broader applicability of these systems in different sectors.
A Context Aware Knowledge Graph Framework for Enhancing Semantic Interoperability in Large Scale Distributed Information Systems Wiwien Hadikurniawati; Dendy kurniawan; Edy Siswanto
Indonesian Journal of Infomatics Vol. 1 No. 1 (2026): February: Indonesian Journal of Infomatics
Publisher : Asosiasi Pengelola Jurnal Informatika dan Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66472/iji.v1i1.31

Abstract

Semantic interoperability remains a major challenge in large scale distributed information systems due to heterogeneous data schemas, diverse contextual interpretations, and the dynamic nature of distributed environments. Traditional metadata-based interoperability approaches are often insufficient to address these challenges, as they lack semantic expressiveness and adaptability. This study proposes a context aware knowledge graph framework to enhance semantic interoperability across heterogeneous distributed systems. The research adopts a design-oriented methodology involving requirement analysis, knowledge graph construction, ontology modeling and alignment, context aware semantic representation, and semantic reasoning. A prototype implementation is developed to evaluate the effectiveness of the proposed framework through interoperability scenarios and cross-system semantic queries. The results demonstrate that the proposed approach significantly improves semantic alignment accuracy, query precision, and recall compared to conventional metadata-based solutions. The explicit integration of contextual information and ontology-based reasoning enables adaptive semantic interpretation and reduces ambiguity across systems. Overall, the findings confirm that combining knowledge graphs with ontology modeling and context aware mechanisms provides a robust and scalable solution for improving semantic interoperability in complex distributed information systems.
Predicting Multi-Morbidity Progression and Identifying Key Determinants in Chronic Disease Patients Using a Longitudinal Data-Driven Information Systems Approach: A Research Protocol for a Cohort Study in Bandung Regency, Indonesia Lusianto Lusianto; Zaenal Arifin Hasibuan; Sri Supatmi; Adnan Shahid Khan
Indonesian Journal of Infomatics Vol. 1 No. 2 (2026): May: Indonesian Journal of Infomatics
Publisher : Asosiasi Pengelola Jurnal Informatika dan Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66472/iji.v1i2.388

Abstract

Multimorbidity represents a critical challenge for primary healthcare systems in low- and middle-income countries (LMICs). In Indonesia, fragmented electronic health record (EHR) infrastructure limits effective chronic disease management. This research protocol presents an end-to-end information systems approach to: (1) design a validated ETL framework for heterogeneous health data; (2) develop and compare machine learning models (Random Forest, XGBoost, LSTM) for predicting multimorbidity risk; (3) identify critical determinants in an Indonesian population; and (4) evaluate a Clinical Decision Support System (CDSS) prototype. A mixed-methods, three-phase design will analyze 150,000 chronic disease patients from SIMPUS EHR data (2021-2025). Phase 2 focuses on CDSS development using explainable AI (XAI), while Phase 3 evaluates user acceptance using the Technology Acceptance Model (TAM). The study expects to produce a predictive model with AUC-ROC $\ge0.75$ and an operational CDSS prototype integrated with the Satu Sehat platform. This protocol addresses gaps in Southeast Asian LMIC data, implementation, and interpretability.
The Effect of Data Imbalance on the Interpretation Stability of LIME-Based Explainable AI on Nutritional Status Prediction Models Sri Nurhayati; Hidayat Hidayat; Siti Ar-Rachmi Ningrum; Zainal Arifin Hasibuan; Sri Supatmi
Indonesian Journal of Infomatics Vol. 1 No. 2 (2026): May: Indonesian Journal of Infomatics
Publisher : Asosiasi Pengelola Jurnal Informatika dan Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66472/iji.v1i2.438

Abstract

Data imbalance is a common challenge in nutritional status prediction because it can reduce classification performance and influence the reliability of Explainable Artificial Intelligence (XAI) interpretations. This study aims to examine the impact of data imbalance on the stability of Local Interpretable Model-Agnostic Explanations (LIME)-based interpretations. A Random Forest model was developed under two scenarios: using the original imbalanced dataset and using a balanced dataset generated through the Synthetic Minority Over-sampling Technique (SMOTE). Model performance was evaluated and compared, followed by LIME-based interpretation and stability analysis. The results indicate that SMOTE enhanced the model’s ability to identify minority classes, with recall increasing from 0.36 to 0.55, although overall accuracy slightly declined. LIME analysis revealed changes in feature contributions between the two scenarios, reflecting the influence of data distribution on model explanations. The interpretation stability score reached 0.80, suggesting relatively consistent explanations despite variations in class balance. These findings highlight the importance of jointly evaluating predictive performance and interpretation stability in health-related machine learning applications.
Implementation of IndoBERT, IndoBERTa, and XLM-RoBERTa for Sentiment Classification of Alfagift and KlikIndomaret User Reviews Alivia Warda Faiqoh
Indonesian Journal of Infomatics Vol. 1 No. 2 (2026): May: Indonesian Journal of Infomatics
Publisher : Asosiasi Pengelola Jurnal Informatika dan Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66472/iji.v1i2.506

Abstract

Sentiment analysis of mobile application reviews is a critical component of business decision-making in Indonesia's digital retail sector. This study implements and evaluates three Transformer-based pre-trained language models IndoBERT, IndoBERTa, and XLM-RoBERTa for three-class sentiment classification (positive, neutral, negative) on user reviews of the Alfagift and KlikIndomaret applications scraped from Google Play Store covering the period 2023–2026. The research dataset comprises 9,600 Alfagift reviews and 9,100 KlikIndomaret reviews collected via the Google Play Store API, subsequently manually annotated using a standardized annotation guideline. Each model was evaluated in both base and large variants with fine-tuning employing adaptive learning rate scheduling and dropout regularization. Experimental results demonstrate that XLM-RoBERTa-large achieves the highest performance, with accuracy of 94.12% and 93.56% on the Alfagift and KlikIndomaret datasets, respectively, surpassing IndoBERT-large (92.87%/91.43%) and IndoBERTa-large (91.94%/90.34%). In-depth analysis of confusion matrices, training curves, and per-class F1-score distributions reveals that multilingual XLM-RoBERTa excels at handling linguistic variation in informal Indonesian, code-mixing, and abbreviations commonly found in app user reviews. This research contributes to the comparative understanding of Indonesian-language and multilingual BERT-based models for the e-grocery domain and provides a benchmark baseline applicable to future research.
Comparative Aspect-Based Sentiment Analysis of Indonesian Online Lending Applications Using IndoBERT and Machine Learning: A Multi-APP User Rizky Mutiara
Indonesian Journal of Infomatics Vol. 1 No. 2 (2026): May: Indonesian Journal of Infomatics
Publisher : Asosiasi Pengelola Jurnal Informatika dan Komputer Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66472/iji.v1i2.540

Abstract

Sektor keuangan digital di Indonesia telah menghasilkan jutaan ulasan pengguna pada platform distribusi aplikasi, sehingga menciptakan sumber informasi yang belum dimanfaatkan secara optimal untuk mengevaluasi kualitas layanan dan mendukung pengawasan regulator. Penelitian-penelitian sebelumnya umumnya menerapkan klasifikasi sentimen biner pada masing-masing aplikasi secara terpisah, sehingga belum mampu menangkap dinamika sentimen pada tingkat aspek yang membedakan platform-platform yang bersaing serta mengabaikan karakteristik linguistik bahasa Indonesia yang dipenuhi oleh bahasa gaul, alih kode (code-switching), dan kosakata yang bersifat spesifik terhadap domain. Penelitian ini mengusulkan kerangka kerja Comparative Aspect-Based Sentiment Analysis (ABSA) yang diterapkan pada lima aplikasi pinjaman daring yang terdaftar di Otoritas Jasa Keuangan (OJK), yaitu Kredivo, Akulaku, AdaKami, Indodana, dan Julo, dengan menggunakan 12.500 ulasan pengguna yang dikumpulkan dari Google Play Store. Alur kerja yang diusulkan mengintegrasikan IndoBERT yang telah di-fine-tune menggunakan korpus keuangan spesifik domain dengan tahap prapemrosesan berbasis leksikon yang memanfaatkan Sastrawi stemmer serta kamus bahasa gaul keuangan Indonesia berisi 500 entri yang telah dikurasi. Klasifikasi sentimen dilakukan terhadap lima aspek layanan, yaitu suku bunga dan biaya, proses pengajuan pinjaman, responsivitas layanan pelanggan, keamanan dan privasi data, serta kinerja teknis aplikasi. Hasil eksperimen menunjukkan bahwa IndoBERT memperoleh nilai macro-averaged F1-score tertinggi sebesar 87,42%, melampaui model pembanding seperti Naive Bayes (71,63%), Support Vector Machine (79,88%), dan CNN-BiLSTM (83,15%). Julo dan Kredivo menjadi aplikasi dengan proporsi sentimen positif tertinggi, masing-masing sebesar 72,4% dan 68,1%, sedangkan AdaKami mencatat proporsi sentimen positif terendah sebesar 32,7%, yang terutama disebabkan oleh banyaknya keluhan terkait aspek keamanan data dan layanan pelanggan. Temuan penelitian ini memberikan rekomendasi yang bersifat praktis dan berbasis bukti bagi regulator OJK maupun pengembang teknologi finansial (fintech) mengenai prioritas peningkatan kualitas layanan berdasarkan umpan balik autentik dari para pengguna.

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