MOdels and indicators for assessing and measuring the urban settlement deVElopment in the view of ZERO net land take by 2050 (MOVEto0 2023) -- Energy transition and spatial transformation: looking for a suitable trade-off -- Machine learning techniques for the semiautomated recognition of urban and peri-urban configurations -- Modelling Post-Covid cities (MPCC 2023) -- Eco-Fashion Luxury Brand: an empirical survey on the attitudes of Millennials and Centennials -- Metropolitan City Lab (Metro_City_Lab 2023) -- Minimum environmental criteria and climate issue in the metropolitan urban ecosystem -- A conceptual framework to correlate the electric transition and well-being and equity. The Italy case -- 3rd Workshop on Privacy in the Cloud/Edge/IoT World (PCEIoT 2023) -- FPGA-enabled Efficient Framework for High-Performance Intrusion Prevention Systems -- Improving Drone Security in Smart Cities via Lightweight Cryptography -- "SHeMed": An application on Secure computation of Medical cloud data based on Homomorphic encryption -- Evaluating the effectiveness of privacy and security promotion strategies -- A decentralized Smart City using Solid and Self-Sovereign Identity -- Prevention of cyber-attacks and privacy breaches in healthcare sector -- TokenFuse: A Versatile NFT Marketplace -- PORt ciTy interface: land Use, logistic aNd rear pOrt area planning (PORTUNO 2023) -- Sustainable maritime passenger transport: a network analysis approach on a national basis -- Sustainable maritime passenger transport: a network analysis approach on a national basis -- Ports in the port: the case of Messina -- The stable Strait crossing system. What developments and opportunities? -- Scientific Computing Infrastructure (SCI 2023) -- Polynomial neural layers for numerical modeling of dynamical processes -- Deploying Deep Learning models using serverlesscomputing for Diabetic Retinopathy detection -- The survey of self-driving car challenges in smart city infrastructures -- New Security Challenges of Internet of Things -- K-anonymity Versus PSI3 for Depersonalization and Security Assessment of Large Data Structures -- Continuous Authentication Methods for Zero-Trust Cybersecurity Architecture -- Spatial COgnition in urban and regional Planning Under Risk (SCOPUR23) -- Mapping citizens' knowledge and perception. What support for flood risk planning? Some tips from Brindisi case study -- Advancing Urban Science with Multi-Agent Systems: Prospects for Innovation and Sustainability in Spatial Planning and Urban Governance -- Socio-Economic and Environmental Models for Land Use Management (SEMLUM 2023) -- The student housing as a catalyst for virtuous processes of "win-win" revitalization of property assets in disuse -- The student housing as a catalyst for virtuous processes of "win-win" revitalization of property assets in disuse -- The real estate risk assessment: an innovative methodology for supporting public and private subjects involved into sustainable urban interventions -- (Con)temporary housing: the AirBnb phenomenon and its impact on the Naples historic center's rental market -- Endogenous vs. Exogenous Leadership in Teamwork: An Socio-Economic Experimental Study -- A GIS referenced methodological approach for the brownfield redevelopment -- A methodological approach for the assessment of parametric costs of sustainable urban roads: an application to the city of Rome (Italy) -- The usufruct right as an effective strategy for the enhancement of properties in disuse -- Specifics of smart cities development in Europe (SPEED 2023) -- Engagement and inclusion experiences for energy communities. An ongoing case study in Cagliari, Italy -- Citizens participation in the transition of Greek cities to smart cities: Does size matter? -- Impacts of Smart Governance on Urban Development -- Multi-Level Perspective within the regulatory framework of shared mobility: a case studies analysis of Italian Demand Responsive Shared Transport services (DRSTs) -- Website as a Tool of Local E-Governance in Czechia: which CMS Is the Most Popular in the Moravian-Silesian Region?.

This nine-volume set LNCS 14104 - 14112 constitutes the refereed workshop proceedings of the 23rd International Conference on Computational Science and Its Applications, ICCSA 2023, held at Athens, Greece, during July 3-6, 2023. The 350 full papers and 29 short papers and 2 PHD showcase papers included in this volume were carefully reviewed and selected from a total of 876 submissions. These nine-volumes includes the proceedings of the following workshops: Advances in Artificial Intelligence Learning Technologies: Blended Learning, STEM, Computational Thinking and Coding (AAILT 2023); Advanced Processes of Mathematics and Computing Models in Complex Computational Systems (ACMC 2023); Artificial Intelligence supported Medical data examination (AIM 2023); Advanced and Innovative web Apps (AIWA 2023); Assessing Urban Sustainability (ASUS 2023); Advanced Data Science Techniques with applications in Industry and Environmental Sustainability (ATELIERS 2023); Advances in Web Based Learning (AWBL 2023); Blockchain and Distributed Ledgers: Technologies and Applications (BDLTA 2023); Bio and Neuro inspired Computing and Applications (BIONCA 2023); Choices and Actions for Human Scale Cities: Decision Support Systems (CAHSC-DSS 2023); and Computational and Applied Mathematics (CAM 2023).