Using Relational Adjectives for Extracting Hyponyms from Medical Texts.
Olga Acosta, César Antonio Aguilar, Gerardo Sierra · 2013
We expose a method for extracting hyponyms and hypernyms from analytical definitions, focusing on the relation observed between hypernyms and relational adjectives (e.g., cardiovascular disease). These adjectives introduce a set of specialized features according to a categorization proper to a particular knowledge domain. For detecting these sequences of hypernyms associated to relational adjectives, we perform a set of linguistic heuristics for recognizing such adjectives from others (e.g. psychological/ugly disorder). In our case, we applied linguistic heuristics for identifying such sequences from medical texts in Spanish. The use of these heuristics allows a trade-off between precision & recall, which is an important advance that complements other works.