文章摘要
张爽,刘非凡,罗双玲,夏昊翔.基于领域语义地图的区块链研究主题发现及演化分析[J].情报工程,2021,7(2):003-014
基于领域语义地图的区块链研究主题发现及演化分析
Topic Detection and Evolution Analysis of Blockchain with the Domain Semantic Map
  
DOI:10.3772/j.issn.2095-915X.2021.02.001
中文关键词: 区块链;Doc2Vec;UMAP;核密度估计;研究主题;发展特征
英文关键词: Blockchain; Doc2Vec; UMAP; kernel density estimation; research topics; development characteristics
基金项目:教育部人文社科规划项目“综合数据解析和动力学建模的科研协作系统演化模式与机理研究”(18YJA630118),辽宁省社会科学规划基金项目“大数据背景下图书馆科技情报知识服务的支撑方法研究”(L16BTQ003),国家自然科学基金面上项目“协同创新网络中的集体智能动态机理研究”(71871042)。
作者单位
张爽 1. 大连理工大学系统工程研究所 大连 116024; 
刘非凡 1. 大连理工大学系统工程研究所 大连 116024; 
罗双玲 2. 大连海事大学航运经济与管理学院 大连 116026; 
夏昊翔 1. 大连理工大学系统工程研究所 大连 116024;3. 大连理工大学大数据与智能决策研究中心 大连 116024 
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中文摘要:
      [ 目的 / 意义 ] 区块链作为一种新兴的数据共享技术,对推动产业变革、改变社会治理模式具有重要意义。当前对区块链研究现状的分析多侧重应用或技术方面,或以传统的文献计量为主,而缺少对整体研究概貌和发展过程的探究。为此,本研究将基于所构领域语义地图探究区块链技术的研究态势。[ 方法 / 过程 ] 本研究利用区块链相关研究的学术数据,借助文档嵌入表示学习方法 Doc2Vec、流形学习算法 UMAP 从文献语义关联的角度可视化了研究概貌,基于核密度估计识别了主要研究内容,并且结合关键词和领域语义地图的动态变化分析揭示了其发展过程。[ 结果 / 结论 ] 首先,本研究识别出了区块链研究的七个主要研究主题,其领域语义地图显示各个主题发展态势不同,当前侧重于技术应用方面的研究。其次,研究发现区块链的发展经历了从加密货币交易到智能合约开发到区块链应用多元化三个阶段。最后,探究了区块链研究的演变发展特征,即,相关研究主题范围持续扩张,同时领域内部存在主题分化现象。本研究结果对科研人员把握研究现状,推进技术发展,以及对政府和企业制定围绕区块链创新方面的科技管理政策具有一定的参考价值。
英文摘要:
      [Objective/ Significance]. As an emerging data sharing technology, blockchain plays an important role in promoting industrial transformation and changing social governance mode. However, most of existing research only focus on analysis of the application or the technology status of blockchain, with traditional bibliometric methods, and less attentions are paid on the overall landscape and development paths of the blockchain research. To overcome these limitations, we will explore the research status of blockchain technology based on semantic domain map proposed. [Methods/Process]. In this study, we integrate document representation learning and manifold learning to map the landscape of blockchain field from the perspective of semantic correlation of papers and detect research topics with kernel density estimation. The dynamic change of keywords and the constructed domain map are furthermore analyzed. [Results /Conclusions]. Firstly, this study identifies seven major research topics in the blockchain research. The obtained domain map shows that the development trends of each topic are different, and the current studies focus on the research of technology application. Secondly, it is found that the development of blockchain has gone through three stages, i.e., cryptocurrency transaction, intelligent contract development and diversification of blockchain application. Finally, the development characteristics of the blockchain are found, that is, the scope of the blockchain research continues to expand, and meanwhile the topics within the field keep splitting. These results may help researchers grasp the research status and to promote the technical development of the field, and help enterprises and governments make science-andtechnology management policies on the block chain innovation.
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