Collaborative filtering is one of the widely used technologies in the e-commerce recommender systems. It can predict the interests of a user based on the rating information of many other users. But the traditional collaborative filtering recommendation algorithm has the problems such as lower recommendation precision and weaker robustness. To solve these problems, in this paper we present a rob...

Introduction by the column editors: This column demonstrates the use of an electronic mailing list (e-list) to generate a collaborative problem-solving process. The process is modeled on key features of the academic curriculum of the Columbia University Public Psychiatry Fellowship (PPF) (ppf.hs.columbia.edu). PPF alumni who encounter management problems at their worksite may present these conc...

The growing interests in the Internet and WWW attempt to extend the field of study from stand alone learning environment to collaborative or cooperative learning environment. In the light of recent explosive growth of information communication technology, the common platform for collaborative or cooperative activities should be discussed and considered in international community. Additionally, ...

One of the most important facets in CSCL research is the interaction between individual and collaborative learning activities. This paper proposes a holistic and complementary analysis model of the collaborative interactions base on three dimensions – process pattern, social relationship and topic space. By making use of content analysis, social network analysis and text mining technologies, as...

We present an instructional model involving a computer-supported collaborative learning environment, in which students from two conflicting groups collaboratively investigate an event relevant to their past using historical texts. We traced one enactment of the model by a group comprised of two Israeli Jewish and two Israeli Arab students. Our data sources included the texts participants wrote—...

Designing for Physical-Cyber Environments (P-C E) will require a collaborative interdisciplinary approach. A Physical-Cyber Environment is my interpretation of an emergent hybrid, physical, digital mix, firmly grounded in physicality, which is technologically, digitally enabled and augmented. This landscape (P-C E) is an emerging possibility space where all types of products, services and envir...

Socio-Constructivist learning theories are emphasizing the role of collaboration in learning process. Social-interaction and collaboration is seen to be a significant part of learning process. This is the reason why discussion areas or other tools that enable virtual collaboration are used in digital learning applications. Does these discussion areas itself enhance the collaboration? Does the f...