One of the main problems of collaborative filtering recommenders is the sparsity of the ratings in the users-items matrix, and its negative effect on the prediction accuracy. This ...
The growth of available entertainment information services, such as movies and CD listings, or travels and recreational activities, raises a need for personalization techniques for...
Abstract. Through interaction with others, a person develops multiple perspectives that become the basis for innovation and the construction of new knowledge. This chapter discusse...
The evolution of learning systems brought improvements to the functionality of their components by offering support and mediating learning, communication and collaboration. However...
- The issue of privacy becomes more and more important. On the other hand, online collaboration among different parties is almost unavoidable. How to allow collaboration while prot...
Pierre K. Y. Lai, Siu-Ming Yiu, K. P. Chow, C. F. ...