Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] The disruptive technology can change the traditional production mode and consumption structure, to make the industrial pattern change dramatically. Identifying potential disruptive technologies will help people to seize the commanding heights of science & technology and gain the first-mover advantage.[Method/process] Collecting literature through subject retrieval and citation tracing, the present stage of the main identification method of the disruptive technology is summarized.[Result/conclusion] The selection of methods is closely related to the academic backgroud of researchers. According to their main research fields, they are divided into four kinds of method:library and information, engineering management, economic research and Christansen School. And then, seven dimensions of recognition methonds are compared and three problems are poinrted out:over-reliance on expert evaluation, inadequate pertinence of indentification standards and inadequate effect of advance indentification. So, in future study, disruptive technology indentification should be explored in various perspectives.
Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] The evolution path of scientific themes is of great significance for understanding the process of scientific development and predicting future development trends. In view of the defect that the existing research treats the topics on the evolution path equally, a new method of multi-position scientific topic identification and its evolution path is proposed. [Method/process] This method divides the topics of each time interval into four types: core-mature, edge-mature, edge-immature, and core-immature based on centripetal degree and density, and uses cosine similarity to divide different time interval themes are related to show the dynamic cross-evolution relationship between different types of scientific themes. [Result/conclusion] Taking the literature of 3D printing as an example, the development process of 3D printing technology was measured from four aspects: technology development stage, theme recognition, theme type division and theme evolution path. The results proved that this method is effective for scientific theme recognition and its evolution path display.
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