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Table 12 Comparison of the performance of the stance classifier and the hashtag-based classifier over four evaluation measures

From: Stance and influence of Twitter users regarding the Brexit referendum

 

Stance classifier

Hashtag-based classifier

No. of testing examples

37,048

37,048

Alpha

\( 45.8\% \)

\( 4.3\% \)

\(\overline{F_{1}}(-,+)\)

\( 60.3\% \)

\( 7.9\% \)

\({Accuracy}\)

\( 59.5\% \)

\( 37.2\% \)

\({Accuracy}\,\!\pm \!\,1\) (\(-,+\))

\( 90.5\% \)

\( 99.6\% \)