Paper: Automatic identification of semantic relations in Italian complex nominals

ACL ID W09-3707
Title Automatic identification of semantic relations in Italian complex nominals
Venue International Conference on Computational Semantics
Session Main Conference
Year 2009
Authors

This paper addresses the problem of the identification of the seman- tic relations in Italian complex nominals (CNs) of the type N+P+N. We exploit the fact that the semantic relation, which is underspeci- fied in most cases, is partially made explicit by the preposition. We develop an annotation framework around five different semantic rela- tions, which we use to create a corpus of 1700 Italian CNs, obtaining an inter-annotator agreement of K=.695. Exploiting this data, for each preposition p we train a classifier to assign one of the five semantic relations to any CN of the type N+p+N, by using both string and supersense features. To obtain supersenses, we experiment with a se- quential tagger as well as a plain lookup in MultiWordNet, and find that using information obtained from the fo...