Advancing Intelligent Digital Systems: Theory, Practice, and Security Frontiers

Dear Colleagues,

This Special Issue invites submissions of extended and significantly revised versions of high-quality papers presented at the 5th International Conference on Novel & Intelligent Digital Systems (NiDS 2025). Additionally, the Special Issue enthusiastically welcomes new and original contributions from researchers, academics, and industry practitioners who did not participate in the conference but whose work aligns with its thematic scope.

The Special Issue is dedicated to advancing research and innovation in the design, development, and deployment of intelligent digital systems. It seeks to foster the integration of intelligent techniques into modern software and system architectures, addressing both theoretical foundations and practical applications. Contributions exploring emerging trends, challenges, and future directions in intelligent system design and security are particularly encouraged.

Submissions may cover, but are not limited to, the following topics:

• AI-enhanced security mechanisms for digital systems;
• Privacy-preserving techniques in data-driven environments;
• Human-centered AI interfaces and interactive systems;
• Cybersecurity strategies for smart, interconnected environments;
• Synergies between AI, IoT, and big data analytics;
• Personalized and adaptive systems for diverse application domains;
• Affective computing and emotion-aware intelligent systems;
• Secure data processing and trustworthy AI frameworks;
• Intelligent solutions for sustainable and resilient smart cities;
• The ethical, legal, and social implications of intelligent digital systems.

Particular emphasis will be placed on works related to the main tracks of NiDS 2025, including:

• Intelligent Multimedia Applications and Human-Centered Technologies;
• AI-Driven Transformation for Industry and Society;
• Data Intelligence and Ubiquitous Computing Solutions.

However, submissions are not restricted to these areas. High-quality, innovative works that contribute to the broader vision of intelligent and secure digital ecosystems are strongly encouraged, even if they fall outside the direct scope of the conference topics.

This Special Issue provides a valuable platform for scholars and practitioners to disseminate novel insights, groundbreaking methodologies, and impactful applications that are shaping the future of secure, adaptive, and intelligent digital environments.

Dr. Christos Troussas
Dr. Akrivi Krouska
Dr. Phivos Mylonas
Prof. Dr. Cleo Sgouropoulou
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.