Design and Analysis of a Novel Authorship Verification Framework for Hijacked Social Media Accounts Compromised by a Human

Table 4

Comparison between the extracted textual features’ performances.

	Runtime (min)	Accuracy	Recall	Precision	F-score
BoW	10.32	0.7867	0.91359	0.7789	0.8556
tf-idf	10.51	0.7844	0.9168	0.7766	0.8548
Word 2-gram	20.96	0.7257	0.9347	0.7070	0.8251
Char 2-gram	18.61	0.87363	0.9380	0.8718	0.9112
Stop words	73.64	0.7867	0.9135	0.7789	0.8556
Lexical	27.88	0.7748	0.8997	0.7520	0.8609
Syntactic	28.88	0.7748	0.8997	0.7520	0.8609
Semantic	0.66	0.7848	0.9006	0.7653	0.8674