Paper: HARPY: Hypernyms and Alignment of Relational Paraphrases

ACL ID C14-1207
Title HARPY: Hypernyms and Alignment of Relational Paraphrases
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2014
Authors

Collections of relational paraphrases have been automatically constructed from large text cor- pora, as a WordNet counterpart for the realm of binary predicates and their surface forms. How- ever, these resources fall short in their coverage of hypernymy links (subsumptions) among the synsets of phrases. This paper closes this gap by computing a high-quality alignment between the relational phrases of the Patty taxonomy, one of the largest collections of this kind, and the verb senses of WordNet. To this end, we devise judicious features and develop a graph-based alignment algorithm by adapting and extending the SimRank random-walk method. The re- sulting taxonomy of relational phrases and verb senses, coined HARPY, contains 20,812 synsets organized into a Directed Acyclic Graph (DAG) with...