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2007
ACM

Measuring credibility of users in an e-learning environment

9 years 10 months ago
Measuring credibility of users in an e-learning environment
Learning Villages (LV) is an E-learning platform for people's online discussions and frequently citing postings of one another. In this paper, we propose a novel method to rank credit authors in the LV system. We first propose a kEACM graph to describe the article citation structure in the LV system. And then we build a weighted graph model k-UCM graph to reveal the implicit relationship between authors hidden behind the citations among their articles. Furthermore, we design a graph-based ranking algorithm, the Credit Author Ranking (CAR) algorithm, which can be applied to rank nodes in a graph with negative edges. Finally, we perform experimental evaluations by simulations. The results of evaluations illustrate that the proposed method works pretty well on ranking the credibility of users in the LV system. Categories and Subject Descriptors J.1 [ADMINISTRATIVE DATA PROCESSING]: Education; J.4 [SOCIAL AND BEHAVIORAL SCIENCES]: Sociology General Terms Algorithms, Measurement Keywo...
Wei Wei, Jimmy Ho-Man Lee, Irwin King
Added 22 Nov 2009
Updated 22 Nov 2009
Type Conference
Year 2007
Where WWW
Authors Wei Wei, Jimmy Ho-Man Lee, Irwin King
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