As a further application of our work, we have carried out a supervised classification task aimed at predicting the degree of harm of an incident directly from the text and the hand-coded features (e.g., external category, medical specialty, location).  We also checked if using our unsupervised content-driven cluster labels as additional features can improve the performance of the supervised classification. 
 Question: How are content clusters used to improve the prediction of incident severity?
they are used as additional features in a supervised classification task