A User-driven and a Semantic-based Ontology Mapping Evolution Approach. - Hélio Martins; Nuno Silva (ICEIS (1), 2009)

Ontologies for meeting contents awareness - MTO and IGMTO. - Carlos Filipe Freitas; Hélio Martins; João Barroso 001; Carlos Ramos 001 (Intelligent Environments (Workshops), 2011)

Characterization, Comparison and Systematization of Context Ontologies. - Hélio Martins; Nuno Silva 001 (CISIS, 2012)

Evolving Context-Unaware to Context-Aware Model Using the ESC Ontology. - Hélio Martins; Nuno Silva 001 (UCAmI, 2012)

A Serious Game Platform to Train Teachers on Cyberbullying Prevention and Response. - Hélio Martins; Hugo Marques; Carlos Martinho (CoG, 2024)