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Supporting “Word-of-Mouth” Social Networks Through Collaborative Information Filtering Article

, Utah State University, United States ; , Lehigh University, United States

Journal of Interactive Learning Research Volume 14, Number 1, ISSN 1093-023X Publisher: Association for the Advancement of Computing in Education (AACE), Chesapeake, VA


Altered Vista is an instructional system that supports a form of "contextual" collaborative learning. Its design incorporates an information filtering technique, called collaborative information filtering, which through computational and statistical means, leverages the work of individuals to benefit a group of users. Altered Vista is designed to provide, upon request, personalized recommendations of web sites. It can also provide recommendations of like-minded people, thus setting the stage for future collaboration and communication. An empirical study involving inservice and preservice teachers was conducted using Altered Vista and presents results from an empirical study. The study examined the feasibility and utility of automating the well-known social feature of propagating word-of-mouth opinions within educational settings. It also examined the impact of Altered Vista's ability to recommend a social network of potentially unknown people.


Recker, M.M. & Walker, A. (2003). Supporting “Word-of-Mouth” Social Networks Through Collaborative Information Filtering. Journal of Interactive Learning Research, 14(1), 79-98. Norfolk, VA: AACE.



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