基于区块链的教育大数据流通可信机制研究  

Research on the Trusted Mechanism of Educational Big Data Circulation Based on Blockchain

作　　者：李成[1] 尹海波 LI Cheng;YIN Hai-bo(Changsha Social Work College,Changsha Hunan 410004;Hunan Tianhe Guoyun Technology Co.,Ltd.,Changsha Hunan 410100)

机构地区：[1]长沙民政职业技术学院,湖南长沙410004 [2]湖南天河国云科技有限公司,湖南长沙410100

出　　处：《长沙航空职业技术学院学报》2024年第4期88-93,共6页Journal of Changsha Aeronautical Vocational and Technical College

基　　金：2020年湖南省教育厅科学研究项目“基于区块链的教育大数据流通可信机制及关键技术研究”(编号:20B045)阶段性研究成果。

摘　　要：文章提出一种基于区块链的教育大数据流通可信框架,并通过构建系统进行验证,该系统可支持跨教育机构数据分析,用于研究教育大数据的分析方法,具有较好应用前景。基于区块链和隐私计算的数据流通可信机制,建立计算节点和面向多学科的教育数据市场模型。该模型下,教育机构将大数据系统接入数据流通可信计算节点,计算节点可将教育数据加工为数据产品,并以区块链智能合约方式发布为数据目录,发布过程会通过区块链进行确权、存证。教育机构可自由组建差异化教育研究的数据市场,并允许计算节点按需加入数据市场,发布已准备好的数据目录。计算节点连接数据市场后,即可获取市场所有数据目录,结合自有数据设计教育数据分布式有向无环图算法,系统通过隐私计算和数据流通框架完成无感知跨域安全可信计算,从而完成跨教育机构的教育大数据分析应用。This paper proposes a trusted framework for the circulation of educational big data based on blockchain,and verifies it by constructing a system.The system can support data analysis across educational institutions,and is used to study the analysis method of educational big data,which has a good application prospect.Based on a trusted data mechanism of blockchain and privacy computing,a computing node and a multidisciplinary educational data market model are established.Under this model,educational institutions connect big data systems to trusted computing nodes for data circulation,which can process educational data into data products and release them as data catalogs in the form of blockchain smart contracts.The publishing process will be verified and documented through the blockchain.Educational institutions are free to set up data markets for differentiated educational research,and allow computing nodes to join the data market on demand and publish the prepared data catalog.After the computing node is connected to the data market,it can obtain all the data catalogs in the market,and design the distributed directed acyclic graph algorithm of education data combined with its own data.The system completes the non-perceptive cross-domain secure and trusted calculation through the privacy computing and data circulation framework,thus completing the application of educational big data analysis across educational institutions.

关 键 词：数据流通 大数据 区块链 可信机制 隐私计算 

分 类 号：G434[文化科学—教育学]