摘要
[目的 /意义]针对政府数据开放中出现的数据孤岛、"脏数据"、数据权属不确定以及缺少可信交互环境等核心问题,笔者提出一种基于区块链的异构政府语义数据共享和融合方案,将共享过程中涉及的关键信息存储到链上,并由全网共识机制确保该条记录可追溯、不可篡改,从而构建一个去中心化的语义数据中台。[方法 /过程]利用区块链具备的分布式共识机制、链式区块结构和非对称加密算法等技术与可编程的智能合约相结合,通过数据语义发布、RDF管理、检索查询、区块链交互、实体消歧等一系列流程,最终与多源政府数据节点共同建设一个具有过程监控的分布式语义数据转换、融合和复用生态系统。[结果/结论]笔者将区块链技术应用于政府数据资源的语义化研究,不仅保证了政府数据的语义安全性,亦解决区块链的语义蛮荒问题,是一个较新的研究思路。
[Purpose/Significance]This paper proposes a semantic chain sharing mechanism for heterogeneous government data based on blockchain,With regard to core issues such as data silos,"dirty data",uncertain data ownership,and lack of a trusted shared environment that arise during the open government data,and the key information involved in the sharing process is stored in the blockchain,and the whole network consensus mechanism ensures that the record can be traced and cannot be tampered,thus constructing a decentralized semantic data platform.[Method/Process]The use of distributed consensus mechanisms,chain structures and asymmetric encryption algorithms in blockchain combined with programmable smart contracts,through data semantic publishing,RDF management,search queries,blockchain interactions,entity disambiguation,etc.A series of processes,together with multi-source government data nodes,is to build a distributed semantic data transformation,fusion and reuse ecosystem with process monitoring.[Results/Conclusions]This study applies the blockchain technology to the semantic research of government data resources,which not only guarantees the semantic security of government data,but also solves the problem of semantic stagnation of blockchain.It is a relatively new research idea.
作者
田野
TIAN Ye(Department and Graduate Institute of Library and Information Science,National Taiwan University,Taipei 10617,China)
出处
《农业图书情报学报》
2020年第1期12-22,共11页
Journal of Library and Information Science in Agriculture
基金
国家社会科学基金项目“数字人文中图像文本资源的语义化建设与开放图谱构建研究”(项目编号:19BTQ024)。
关键词
区块链
去中心化
智能合约
政府开放数据
关联数据
blockchain
decentralization
smart contract
open government data
linked data
