A Behavior Characteristics-Based Reputation Evaluation Method for Grid Entities

Reputation provides an operable metric for trust establishment between unknown entities in Grid. Yet, most reputation evaluation methods rarely analyze an entity's past behaviors, which is a deviation from the definition of reputation: an expectation for future behaviors based on past behavior information. Therefore, we propose this behavior-based method for reputation evaluation. The main idea is that: according to reputation evidences from third parties, behavior characteristics such as behavior coherence, behavior inertia etc will be well abstracted, and reputation evaluation will be better guided. Experimental results show that: this method can effectively characterize an entity's behavior, and the final reputation result is reasonable and reliable.