Xavier Parra received his B.S. and M.S. degrees in Computer Science from the Universitat Politècnica de Catalunya (UPC), Barcelona, in 1992, with a specialization in system engineering and industrial automation. He joined the UPC Department of Automatic Control in 1994 as Assistant Professor and completed his PhD in Computer Engineering in 2001, focusing on artificial neural networks and fault-tolerant learning algorithms. Since 2002, he has been Associate Professor with the Department of Automatic Control at UPC. He currently develops his research within the Community-Driven Techonology Research Group (TOC) as a senior member of the Technical Research Centre for Dependency Care and Autonomous Living (CETpD) in Vilanova i la Geltrú. He is also a member of the AgrotechUPC research centre. With more than 25 years of experience in the field, Prof. Parra's research interests include human activity recognition, assistive technologies, and wearable intelligent sensors. He has participated in numerous research projects related to robotics and control systems engineering and has authored many highly cited papers in these domains.