Semantic Knowledge Sharing Mechanism Based On Blockchain

In the context of big data,existing knowledge graph building and querying work are all based on gathering scattered knowledge in a centralized big data platform.However,with the advent of the knowledge sharing 3.0 era,the knowledge value awareness of knowledge owners has generally increased,and it has become increasingly difficult to focus knowledge on a centralized big data platform for free.Therefore,how to design a decentralized knowledge-sharing mechanism to realize the transfer of knowledge from information to value is of great significance.Blockchain is a technical solution which proposed in recent years that uses a decentralized de-trusting method to maintain a traceable and tamper-proof information book.This paper proposes and implements a decentralized knowledge sharing mechanism in combination with blockchain.The main work is divided into the following aspects :1) Proposed a kind of interaction model between decentralized system nodes;2)propose and implement a decentralized semantic knowledge network incremental iterative construction scheme;3)design and implement decentralized semantic knowledge query pattern;4)propose and implement the proof of work mechanism and smart contract.This paper builds a six-node coalition chain on the Ethereum platform.We conduct verification experiments on the decentralized semantic knowledge sharing mechanism and comparative experiments with traditional centralized knowledge graph on construction time,query rate.The experimental results show that the decentralized semantic knowledge sharing mechanism proposed in this paper is feasible and has a considerable effect on the construction speed of the knowledge network.Under the background of massive data and more and more attention to the value of knowledge,this article has some practical significance and economic value,and puts forward new ideas for knowledge sharing.