摘要
以去中心化为典型特征的区块链彻底颠覆了传统中心化思想,有望重塑人类社会的运行方式,成为未来科技创新的焦点。近年来,围绕区块链的研究成果不断涌现,对现有文献进行主题挖掘和数据分析可以发现当前的研究焦点和未来的研究趋势。以中国知网期刊数据库区块链相关文献为研究对象,采用系统聚类方法对915篇精选文献进行聚类,形成21类研究主题。为解读主题内涵,计算1974个关键词对21类主题的信息增益,选取各主题中信息增益前10位的关键词对主题内涵进行解析,并根据主题相关性构建包含基础层、功能层、应用层三个层面21个类别的区块链研究框架。通过对文献进行时间序列分析,构造区块链研究四象限矩阵,并将21类主题划分为初始探索主题、当前热点主题、未来趋势主题和成熟稳定主题。研究结果表明:从区块链研究的三个层面看,区块链基础性研究和应用性研究均衡发展,区块链功能性研究相对薄弱,有待加强;从具体主题看,“去中心化”“比特币”主题的研究已相对成熟,热度有所减退;“智能合约”“共识机制”“金融创新”等主题是当前研究的热点;“信息安全”“人工智能”“金融科技与监管”“身份认证”等主题是未来研究的趋势;“联盟链”“数字货币”等11类主题处于初始探索期,其后续的演化依赖于社会现实需求和技术支撑程度。
Characterized by de-centralization,the block chain completely overturns the traditional centralization thought.It is expected to reshape the operation mode of human society and become the focus of future scientific and technological innovation.In recent years,the research outputs related to block chain keep emerging.Topic mining and hot spot analysis of these literatures can help us find the current research focus and future research trends.Taking the block chain related research literature in CNKI Journal Database as the research object,we adopt the systematic clustering method to cluster 915 selected literature,forming 21 research topics.In order to explore the connotation of each topic,the information gain of 1974 keywords to 21 categories is calculated.The top ten keywords of each topic are selected to interpret the connotation of the corresponding topic.Finally,a block chain research framework consisting of three levels and 21 categories is established.Through the analysis of literature time series,the 21 themes are divided into four types:initial exploration theme,current hot topic,future trend theme and mature stable theme.The results show that:from the perspective of three research dimensions,the basic research and applied research of block chain have balanced development,while the functional research of block chain is relatively weak and needs to be strengthened.From the perspective of specific research topic,the research on the topic of“decentralization”and“bitcoin”has been relatively mature,and its popularity has decreased.Research on“intelligent contract”“consensus mechanism”“financial innovation”are the current research hotspots.Topics including“information security”“artificial intelligence”“fintech and regulation”and“identity authentication”are future research trends.The remaining eleven topics,such as“alliance chain”and“digital currency”are in the initial exploration period,and their subsequent evolution depends on the social reality demand and the degree of technical support.
作者
张长鲁
张健
ZHANG Chang-lu;ZHANG Jian(School of Economic&Management,Beijing Information Science&Technology University,Beijing 100192,China;Beijing Key Lab of Green Development Decision Based on Big Data,Beijing 100192,China)
出处
《统计与信息论坛》
CSSCI
北大核心
2021年第2期119-128,共10页
Journal of Statistics and Information
基金
国家重点研发计划项目“绿色产品认证共性关键技术研究”(2017YFF0211501)
北京市教委科技计划项目“面向数据粒度分级的绿色产品认证溯源及系统研发”(KM201911232008)。
