Constructing a Lexicon of Relational Nouns
Edward Newell, Jackie Chi Kit Cheung · 2018
Relational nouns refer to an entity by virtue of how it relates to another entity.Their identification in text is a prerequisite for the correct semantic interpretation of a sentence, and could be used to improve information extraction.Although various systems for extracting relations expressed using nouns have been developed, there are no dedicated lexical resources for relational nouns.We contribute a lexicon of 6,224 labeled nouns which includes 1,446 relational nouns.We describe the bootstrapped annotation of relational nouns, and develop a classifier that achieves 70.4% F1 when tested on held out nouns that are among the most common 2,500 word types in Gigaword.We make the lexicon and classifier available to the scientific community.