Development Status and Hotspot Visualized Analysis of Autonomous Vehicles Based on CiteSpace

Table 1

Data source and processing results.

	Detail	Description
Search date	May 3, 2021
Database	Web of science core dataset (WOS)	The web of science core dataset contains the characteristics of long time span, a large number of entries, and high quality, which provides a powerful guarantee for the reliability of raw data in the visual analysis [18]
Subject	TS = (automated/automatic/unmanned/autonomous driving or vehicle)	The published article containing the above search keywords in the title, abstract, or keywords will be retrieved
Document type	Article	This type of article is reviewed by peers, which can represent the original scientific development
Language	English
Time span	2005–2020
Number of documents research	1213
Number of valid documents	1072	Remove 141 papers irrelevant to this field by manual screening