Open data movement in Greece: a case study on open government data sources. - Charalampos Alexopoulos; Lefkothea Spiliotopoulou; Yannis Charalabidis (Panhellenic Conference on Informatics, 2013)

Europe in the shadow of financial crisis: Policy Making via Stance Classification. - Lefkothea Spiliotopoulou; Dimitrios Damopoulos; Yannis Charalabidis; Manolis Maragoudakis; Stefanos Gritzalis (HICSS, 2017)

Analysis and design of an opinion mining system for policy making in e-participation - Lefkothea Spiliotopoulou (2019)