id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-133143-ws708tsc	Xu, Wentao	Characterizing the roles of bots during the COVID-19 infodemic on Twitter	2020-11-12		.txt	text/plain	4675	274	59	In this paper, we examined the roles of bots in the case of the COVID-19 infodemic and the diffusion of non-credible information such as"5G"and"Bill Gates"conspiracy theories and"Trump"and"WHO"related contents by analyzing retweet networks and retweeted items. We show the bipartite topology of their retweet networks, which indicates that right-wing self-medium accounts and conspiracy theorists may lead to this opinion cleavage, while malicious bots might favor amplification of the diffusion of non-credible information. Although "5G" was considered as a popular conspiracy theory in the early COVID-19 pandemic, a larger number of non-credible bots were not observed in comparison with other topics. According to our data, this is the top retweeted user by non-credible bots in both "5G" and "Bill Gates" conspiracy topics. Overall, the noncredible bots and non-credible humans share 71%, 50%, 80% and 50% terms (nouns) used in the retweeted articles related to the "WHO","Trump","5G" and "Bill Gates" topics, respectively. The non-credible humans and bots share many users and domains in the four topics considered.	./cache/cord-133143-ws708tsc.txt	./txt/cord-133143-ws708tsc.txt