This paper deals with our work on interactive mathematical documents. These documents accomodate various sources, users, and mathematical services. Communication of mathematics bet...
Research on recommender systems has primarily addressed centralized scenarios and largely ignored open, decentralized systems where remote information distribution prevails. Absenc...
In examine the tutoring protocols of one expert human tutor tutoring 10 students in solving physics problems, four analyses reveal that he tutored the five good learners in differe...
Collaborative systems evaluation is necessary in several situations. However, evaluation is frequently done in an ad-hoc manner or not at all. This paper presents a survey of evalu...
Abstract. Nonlinear dimensionality reduction aims at providing lowdimensional representions of high-dimensional data sets. Many new methods have been proposed in the recent years, ...