Lastly, WNP and WNN measure the overlap of the candidate term WordNet synset information with the terms in the positive and negative category, respectively, as follows.
the WNP score of a candidate term c k is computed as the term overlap between the synonyms of c k (Syn(c k )) and the set of expanded terms in k from the previous epoch E(k) t−1 plus the the term overlap between the antonyms of c k (Ant(c k )) and E(−k) t−1 .