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B. Trilaksono

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Review Open access 2026

Cybersecure and Privacy-Aware Governance Framework With Face Verification ID in Digital Public Infrastructure Toward a Trusted and Secure Digital Society: A Systematic Literature Review

This paper presents a systematic literature review (SLR) on the development of a cybersecure and privacy-aware governance framework for Face Verification ID in Digital Public Infrastructure (DPI). The review responds to a growing need for digital public services that are secure, interoperable, scalable, and socially trusted, particularly where biometric identity verification is integrated with national electronic identity systems such as NFC-based e-ID. Following a PRISMA-oriented protocol, 181 records were identified from IEEE Xplore, ScienceDirect, and Scopus, comprising 59, 54, and 68 articles respectively. After duplicate removal, title-abstract screening, full-text eligibility assessment, and quality assessment using seven criteria, 36 studies were included for final synthesis. The results show that the literature has developed strong technical components in self-sovereign identity, e-KYC, blockchain-enabled digital credentials, privacy-preserving biometrics, face presentation attack detection, zero-trust security, and public trust in police use of facial recognition. However, these components are still fragmented. Very few studies combine NFC e-ID assurance, face verification, liveness detection, privacy-by-design, cybersecurity risk management, interoperability governance, and law-enforcement accountability within a single DPI-oriented framework. The discussion therefore proposes a layered governance architecture that integrates identity assurance, biometric verification, cyber defence, privacy governance, interoperability orchestration, and accountability mechanisms. The review contributes a consolidated taxonomy, research gap analysis, and evaluation agenda for future DPI implementations toward a trusted and secure digital society.

Eko Wahyu Bintoro, B. R. Trilaksono, S. Supangkat · 0 citations
Conference Jul 2026

Optimizing Context Injection for Educational Chatbots through Comparative Sentence and Recursive Chunking Strategies

This research addresses the common challenge of a lack of context in Question and Answer (QA) datasets in digital education, which limits the reasoning potential of Large Language Models (LLMs). To address this, we optimize an automated retrieval-based dataset generation system that systematically enriches QA pairs with relevant pedagogical context from authoritative digital textbooks. This study conducts a comparative analysis of two major text chunking strategies: sentence chunking and recursive chunking. Although these pipelines are designed for general education applications, they are evaluated here through a case study of Indonesian elementary education materials. To ensure the highest reliability, the workflow performance is measured against a ground truth dataset of 978 entries, manually curated and validated by education experts to ensure pedagogical accuracy, and 781 entries from other subjects. Quantitative evaluation using BERTScore shows that recursive chunking achieves a superior F1 score of 0.748 compared to 0.737 for sentence chunking, with peak performance observed on upper elementary school materials (Grades 5 and 6). These findings were corroborated by the final verification phase through User Acceptance Testing (UAT) with an elementary school educator, where recursive chunking achieved a 'Relevant' score of 22 compared to 17 for sentence chunking. A key contribution of this study is the development and validation of a standardized, automated workflow by experts that effectively overcomes the barriers of manual dataset construction for domain-specific tasks, providing a semantically robust foundation for context-aware educational AI.

V. C. Mawardi, Ayu Purwarianti, B. Trilaksono et al. · 0 citations
Open access Aug 2026

Fault Signature Maps: A Signal-Level Explainable Artificial Intelligence Framework for Bearing Fault Diagnosis

This study establishes that fault discrimination relies on transient impulse morphology rather than bearing characteristic frequencies, a finding invisible to feature-level XAI, and introduces a multi-resolution diagnostic framework bridging deep learning accuracy with physically interpretable vibration analysis for trustworthy deployment in safety-critical industrial environments.

T. Suharto, Kadarsah Suryadi, B. Iskandar et al. · 0 citations

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