Junling LiuYan ChenMingzhu ZhangYang HongZuoping WuBao YuanOuyang HongResearch on Key Technologies of synonym automatic extraction based on multithreaded web crawler.159-1632020ICIAIhttps://doi.org/10.1145/3390557.3394293conf/iciai/2020db/conf/iciai/iciai2020.html#LiuCZHWYH20