Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely:  propose Shapley Value based centrality measures for signed social networks.  also demonstrate that they lead to improved precision for the troll detection task.
['Varun Gangal', 'Abhishek Narwekar', 'Balaraman Ravindran', 'Ramasuri Narayanam']
I am writing a research paper on a idea Trust and distrust across coalitions: shapley value based centrality measures for signed networks (student abstract version)
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