GIFCT Tech Trials: Combining Behavioural Signals to Surface Terrorist and Violent Extremist Content Online

Figures & data

Table

Keyword Group	Number of Keywords
Language indicating affiliation with and/or support for a violent extremist and/or terrorist group: Islamist Extremism (IE)	102
Language indicating affiliation with and/or support for a violent extremist and/or terrorist group: White Supremacy (WS)	64
Language Indicating Mass Violence	18
Language Indicating Immediacy	4
Combined (Posts containing at least one IE or WS term plus one Mass Violence and one Immediacy term)	2 (IE + WS)
GIFCT (included for illustrative purposes)	1 (“gifct”)

Table

Source	Number of Posts
Twitter	40,986
News and Blogs	21,557
Other Website & Apps (inc. Dark Web)	10,857
Instagram	9,040

Table

Languages Surfaced in Posts from the English and Arabic keywords
Arabic	40372	Chinese	54	Urdu	7	Bosnian	3	Waray	1
English	34422	Dutch	25	Ukrainian	7	Hindi	2	Sindhi	1
Spanish	1523	Vietnamese	19	Uzbek	7	Swahili	2	Kyrgyz	1
Russian	1460	Polish	18	Turkish	6	Bengali	2	Estonian	1
**Unknown	1329	Norwegian	12	Catalan	6	Kurdish	2	Romanian	1
Portuguese	1083	Swedish	12	Manx	6	Somali	2	Kinyarwanda	1
German	867	Thai	11	Greek	4	Czech	1	Slovenian	1
Persian	529	Hungarian	9	Croatian	4	Malay	1
French	253	Korean	8	Finnish	4	Samoan	1
Italian	135	Hebrew	8	Serbian	4	Akan	1
Indonesian	113	Danish	8	Tagalog	3	Latin	1
Japanese	76	Pashto	7	Rundi	3	Aymara	1

Table

True and False Positives Related to White Supremacy Keyword Clusters
True/Positive Charlottesville “Unite the Right”	False/Positive National Action Network	False/Positive NSO
[('replace’, 0.13328520563439308), ('jews’, 0.11230981724996361), ('chanting’, 0.057337715584569945), ('charlottesville’, 0.0478887989029457), ('torches’, 0.03350731409510568), ('tiki’, 0.026123649868681386), ('trump’, 0.025432752554703227), ('people’, 0.02437021368058017), ('nazis’, 0.023918926826305722), ('marching’, 0.02127019524101818)]	[('martin’, 0.14376419952394828), ('trayvon’, 0.1273272776541626), ('fulton’, 0.10521880531091184), ('adams’, 0.07839832552577744), ('anniversary’, 0.06672253671401075), ('saturday’, 0.0612721277818157), ('sybrina’, 0.05998768292616513), ('sharpton’, 0.059522931775621984), ('10th’, 0.05938700616197516), ('mother’, 0.05340544405305004)]	[('israel’, 0.19970396463926965), ('spyware’, 0.12034508901977223), ('pegasus’, 0.08122738112620327), ('fearing’, 0.0742549798731156), ('nso’, 0.0699676984254288), ('ukraine’, 0.06893067034677243), ('times’, 0.06604664830707896), ('russian’, 0.06337184767060701), ('requests’, 0.06284982527336637)]