Abstract
Based on the outstanding characteristics of Cloud Model on the process of transforming a qualitative concept to a set of quantitative numerical values, a formalized model of subjective trust is introduced by which we can transform between qualitative reputation and quantitative voting data. The present paper brings forward algorithms to compute direct trust and recommender trust. Further more, an effective similarity measuring method used to distinguish two users' repulation on knowledge level is also proposed. The given model properly settles the uncertainty and fuzziness properties of subjective trust which is always the weakness of traditional subjective trust model, and provides a step in the direction of proper understanding and definition of human trust.
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Foundation item: Supported by the National Basic Research Program of China (973 Program) (G2004CB719401) and National Natural Science Foundation of China (60496323, 60375016)
Biography: ZHANG Guangwei (1970), male, Ph. D. carcidate, research direction, artificial intelligence, data mining.
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Guangwei, Z., Jianchu, K., Ziqiang, L. et al. A new kind of subjective trust model. Wuhan Univ. J. Nat. Sci. 11, 1457–1461 (2006). https://doi.org/10.1007/BF02831797
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DOI: https://doi.org/10.1007/BF02831797