Olga C. SantosOlga C. Santos holds a PhD in Artificial Intelligence from the Computer Science School of the Spanish National University for Distance Education (UNED) and a MSc degree in Telecommunications Engineering specialized in Software Engineering from the Poytechnic University of Madrid (UPM). Since September 2001, she has been a researcher at the aDeNu Research Group at UNED, and since 2005, she is the R&D Technical Manager of the group. Her current research interests focus on taking into account recommendation strategies to provide open source educational accessible user-centered e-learning services for learners. She has participated in 11 international and national research projects, published over 100 papers in various international conferences and journals, and co-chaired workshops and conferences related to topics from her research. Read More Read Less