Abstract:

It is necessary to effectively manage massive usergenerated resources in knowledge community of digital library, so as to achieve knowledge reuse and promote development of knowledge community. User reputation represents approval of resource contributor by other users, which can encourage users to participate in resource contribution and evaluation in knowledge community. Therefore, this paper proposes a user_reputation_based resource management mechanism in knowledge community of digital library. Reputation calculation method based on influence propagation accurately calculates user reputation in the knowledge community by considering user activities, users’ influence propagation and influence attenuation in the propagation process. Based on the method, user_reputation_based resource management mechanism utilizes collective intelligence of users to achieve duplicate resource removal, resource recommendation and elimination of resources. User reputation improves resource quality and user activeness in knowledge community. In the meantime, effective resource management promotes proper evaluation of user reputation in knowledge community. Experimental analysis proves the proposed user reputation calculation method and resource management mechanism is effective, which provides a new method and direction for the construction of knowledge community of digital library.

Key words: Reputation, Knowledge community, Resource management, Digital library