Abstract:

In our research we generate scientific knowledge graph by taking highly cited papers from 2015 to 2021 in the field of large data technology research in the core collection of WOS database as literature samples, using knowledge graph software VOSviewer to make statistics on the frequency of keywords in the literature samples, and manually preprocessing the keyword data. We also carry out quantitative and cluster analysis of the research in the field of big data technology from the aspects of research hotspots, research frontiers and evolution paths. Our results indicate that there are three research directions in the field of big data technology: big data development and mining technology, big data analysis and management technology, big data operation and maintenance and cloud computing technology. Our conclusions are: (1) digitization, intelligence and networking are the development directions of big data technology in the future; (2) the research hotspots of big data technology in the future are big data operation and maintenance and cloud computing technology; (3) data security is the research frontier. With the deepening of theoretical research on big data technology, the theoretical system of big data and the governance system of big data will be more perfect and mature, and the mankind will enter a new era of the Internet of everything under the guidance of information technology.

Key words: big data technology, VOSviewer, hot researches, highly cited papers, data security