Dr. Rui Correia is Lead Machine Learning Engineer at DefinedCrowd. Dr. Rui Correia has a PhD in Language Technologies through the CMU|Portugal program (2018) under the topic “Automatic Classification of Metadiscourse”. His areas of interest include Computer-Assisted Language Learning, Crowdsourcing, NLP, and more recently, the interaction between them. He has more than 10 years of experience within the NLP field and 8 years of crowdsourcing experience. Rui has been actively working in these research areas with more than 10 scientific papers already published.

João Freitas is the CTO of DefinedCrowd. João coordinates all IT and AI initiatives at DefinedCrowd and manages EU operations. With more than 13 years' experience in software development, machine learning and crowdsourcing, João also holds a PhD in the areas of speech technology and human-computer interaction. João has filed several patents and published over 30 articles in peer-reviewed international conferences and journals. He is also the author and co-author of book chapters and one book.