Team Harry Friberg at SemEval-2019 Task 4: Identifying Hyperpartisan News through Editorially Defined Metatopics

SEMEVAL 2019  ·  Nazanin Afsarmanesh, Jussi Karlgren, Peter Sumbler, Nina Viereckel ·

This report describes the starting point for a simple rule based hypothesis testing excercise on identifying hyperpartisan news items carried out by the Harry Friberg team from Gavagai. We used manually crafted \textit{metatopics}, topics which often appear in hyperpartisan texts as rant conduits, together with tonality analysis to identify general characteristics of hyperpartisan news items. While the precision of the resulting effort is less than stellar{---} our contribution ranked 37th of the 42 successfully submitted experiments with overly high recall (95{\%}) and low precision (54{\%}){---}we believe we have a model which allows us to continue exploring the underlying features of what the subgenre of hyperpartisan news items is characterised by.

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