Paper: Local and Global Context for Supervised and Unsupervised Metonymy Resolution

ACL ID D12-1017
Title Local and Global Context for Supervised and Unsupervised Metonymy Resolution
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2012
Authors

Computational approaches to metonymy res- olution have focused almost exclusively on the local context, especially the constraints placed on a potentially metonymic word by its grammatical collocates. We expand such approaches by taking into account the larger context. Our algorithm is tested on the data from the metonymy resolution task (Task 8) at SemEval 2007. The results show that incorpo- ration of the global context can improve over the use of the local context alone, depending on the types of metonymies addressed. As a second contribution, we move towards unsu- pervised resolution of metonymies, made fea- sible by considering ontological relations as possible readings. We show that such an unsu- pervised approach delivers promising results: it beats the supervised most frequent sens...