His main area of research is machine learning and its applications, particularly to human language technology. He is co-author of more than 130 research publications and has participated in more than 20 research projects, including 5 European projects. He has been co-advisor of 8 PhD theses. His recent activities have included leading the UPV node of the PASCAL2 European Network of Excellence, and the coordination of the highly successful and recently completed transLectures EU project.