Date Added: Feb 2011
An expectation of trust influences a learner's participation in collaborative learning activities, such as participating in a group discussion or seeking or offering help in an assignment, and so too does an expectation of privacy. Reputation can effectively be used for establishing trust in e-learning environments. In this paper, the authors grapple with the challenge of facilitating trust while preserving privacy in collaborative learning activities. They recognize that a comprehensive assessment of reputation may not be possible because an individual may hold multiple non-linkable identities (personae) for various reasons, most importantly for an identity management-based solution to privacy. They present a system for reputation management in the e-learning context that supports guarantor-mediated privacy preserving reputation transfer to address this challenge.