Gemma Bel-Enguix has a Ramon y Cajal research position at the Department of Romance Philologies in the Universtitat Rovira i Virgili, Tarragona, Spain. She has been a pre-doctoral fellow at Leiden University and at UNAM University. As a postdoctoral fellow she worked at the universities of Georgetown and Milano-Bicocca. Her main research topic is the application of natural computing models in linguistic issues.M. Dolores Jiménez-López is Lecturer at the Department of Romance Philologies in the Universitat Rovira i Virgili, Tarragona, Spain. She worked for two years, as a pre-doctoral fellow, at the Computer and Automation Research Institute of the Hungarian Academy of Sciences in Budapest. Her post-doctoral training includes a three-year stay at the Department of Computer Science in the University of Pisa. Application of formal models to natural language analysis is one of her main research topics.