基于改进PageRank算法的跨链公证人机制评价模型

跨链技术是区块链领域研究和关注的热点，公证人机制是一种典型的跨链技术手段。针对公证人机制中存在节点信用监督不足的问题，构建基于改进PageRank算法的公证人节点信用评价模型。收集多种公证人节点相关信息，利用改进的PageRank算法对公证人节点进行信用计算，得到高可信的公证人节点，从而保证区块链系统安全稳定。将用户评价和节点本身信息进行综合分析和相互验证，使得公证人机制更加安全可信。实验结果表明，该评价模型在跨链公证人机制中具有良好的应用和评估效果。

Evaluation Model of Cross-Chain Notary Mechanism Based on Improved PageRank Algorithm

Cross-chain technology is the hotspot of blockchain research. As a typical cross-chain technique,notary mechanism is faced with the insufficient supervision of the notary’s credit.To address the problem,this paper proposes an evaluation model for notary node credit based on the improved PageRank algorithm. This model collects the information of the notary node,uses the improved PageRank algorithm to calculate the credit of the notary node,and obtains a highly trusted notary node to ensure the security and stability of the blockchain system.The user evaluation and the information of the nodes themselves are comprehensively analyzed and mutually verified,which makes the notary mechanism more secure and reliable. Experimental results shows that the evaluation model have good effects to the application for cross-chain notary mechanism.