I’m a Researcher with the National Research Council (CNR), Institute for Research on Population and Social Policies (IRPPS) in Rome, Italy. My research activity has mainly been carried out in the Human-Computer Interaction (HCI) field, with the goal to design relevant models, tools, and applications to improve usability, accessibility, and user experience for all in the various possible contexts of use. My main research interests focus on multimodal interaction, ambiguity, visual languages, visual interfaces, sketch-based interfaces, knowledge management and innovation, social network, sentiment analysis, emotion recognition, fake news detection, machine learning, and social computing, and collaborative and co-creative and participative approaches. I have continuously participated for several years in numerous interdisciplinary and international projects. I’m the author of over 60 papers in international journals, conference proceedings, and book chapters. I have been a guest editor of several International journals and books. I’m involved in program committees of several national and international conferences and workshops, and I’m involved as a reviewer of several international journals (e.g. IEEE Access, Multimedia Tools And Applications (MTAP), IEEE Transactions on Systems, Man and Cybernetics: Systems (SMCA), Human-centric Computing and Information Sciences (HCIS), several MDPI journals, Expert Systems, Pervasive Computing and Communications (IJPCC), etc.).