Toward a Blockchain-Enabled Crowdsourcing Platform. - Dimitrios G. Kogias; Helen C. Leligou; Michael G. Xevgenis; Maria Polychronaki; Evangelos Katsadouros; George Loukas; Ryan Heartfield; Charalampos Z. Patrikakis (IT Prof., 2019)

OPTORER PPE: Optimal routing and exploration of touristic and cultural areas of interest within Attica given personalized adaptive preferences, promoted underlying purpose and interactive experience. - Maria Polychronaki; Costas Vassilakis 002; Dimitrios Kogias; Helen C. Leligou; Ioannis Vagiannis (PCI, 2022)

My University Studies (M.U.St): An Academic Proof of Concept for the Web3.0. - Maria Polychronaki; Ioannis Christidis; Michael G. Xevgenis; Dimitrios G. Kogias; Helen C. Leligou (PCI, 2024)

OPTORER: A Dynamic Routing and Touring Service for Indoors and Outdoor Tours. - Constantinos Vassilakis; Maria Polychronaki; Dimosthenis Margaritis; Dimitrios G. Kogias; Helen C. Leligou (Sensors, 2024)