Swiss Federal Institute of Technology in Lausanne EPFL, CH-1015 Lausanne, Switzerland Trust Modeling and Evaluation in Web 2.0 Collaborative Learning Social Software Na Li Swiss Federal Institute of Technology in Lausanne (EPFL) JTEL 2010 June 7-June 11
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Swiss Federal Institute of Technology in Lausanne EPFL, CH-1015 Lausanne, Switzerland
Trust Modeling and Evaluation in Web 2.0 Collaborative Learning Social Software
Na Li
Swiss Federal Institute of Technology in Lausanne (EPFL)
JTEL 2010 June 7-June 11
Swiss Federal Institute of Technology in Lausanne EPFL, CH-1015 Lausanne, Switzerland
Outline
•Research Questions•Current Progress•Future Work
Swiss Federal Institute of Technology in Lausanne EPFL, CH-1015 Lausanne, Switzerland
Research Questions• Lots of Web 2.0 learning environments bring
about large amount of user-generated content▫What should we trust?▫Who should we trust?
RSS Feeds
Pictures
Documents
Videos
Wiki Pages
Pictures
Swiss Federal Institute of Technology in Lausanne EPFL, CH-1015 Lausanne, Switzerland
Research Questions•Trust Measurement
▫Evaluate quality of user-generated content▫Recommend useful resources ▫Privacy management
Swiss Federal Institute of Technology in Lausanne EPFL, CH-1015 Lausanne, Switzerland
Current Progress
•Trust-based rating prediction▫Quality evaluation in open learning
environment▫Filter helpful learning resources, people
and group activities
Swiss Federal Institute of Technology in Lausanne EPFL, CH-1015 Lausanne, Switzerland
Trust-Based Rating Prediction Approach
•Basic idea▫What influences rating opinion:
similarity and familiarity▫People tend to trust the opinions of
acquaintance and those having similar interests and tastes.
Swiss Federal Institute of Technology in Lausanne EPFL, CH-1015 Lausanne, Switzerland