Diana earned her PhD from the University of Toronto, Department of Computer Science. She obtained her B. Eng. and M.Sc. from the Department of Computer Science at the Technical University of Cluj-Napoca, Romania. Her research interests and expertise are in natural language processing and artificial intelligence, particularly the application of lexical semantics to near synonyms and nuances of meaning, word and text similarity, classification of texts by emotion and mood, information retrieval from spontaneous speech, information extraction, and detecting signs of mental health problems from social media. She was Visiting Professor of Computational Linguistics at the University of Wolverhampton, UK (2010–2013). She has served as co-chair and spoken at many conferences relating to artificial intelligence (AI) and natural language processing (NLP). She has published more than 30 journal papers, 100 conference papers, and nine book chapters and served as an Associate Editor of the Computational Intelligence journal and the Natural Language Engineering Journal.