Kratos: A secure, authenticated and publicly verifiable system for educational data using the blockchain. - Velislava Hillman; Varunram Ganesh (IEEE BigData, 2019)

Secure and Privacy-Preserving Secondary Data Use: A Framework for Cross-Domain Computation in the Encrypted Domain. - Dimitra Papatsaroucha; Cristina Regueiro; Marisa Escalante; Maurizio Martignano; Velislava Hillman; Evangelos K. Markakis (ACSAC Workshops, 2025)

Assessing the Fairness of AI Systems for Education. - Velislava Hillman; Katarzyna Barud; Ibrahim Sabra; Clara Saillant; Syed Zulkifil Haider Shah; Lukas Faymann; Edoardo Pareti; Leo Bianchi; Manuele Barbieri (TRUST-AI@ECAI, 2025)