USP wlv and WLV usp : Combining dictionaries and contextual information for cross-lingual lexical substitution
Wilker Ferreira Aziz, Lucia Specia · 2010
We describe two systems participating in Semeval-2010’s Cross-Lingual Lexical Substitution task: USPwlv and WLVusp. Both systems are based on two main components: (i) a dictionary to provide a number of possible translations for each source word, and (ii) a contextual model to select the best translation according to the context where the source word occurs. These components and the way they are integrated are different in the two systems: they exploit corpus-based and linguistic resources, and supervised and unsupervised learning methods. Among the 14 participants in the subtask to identify the best translation, our systems were ranked 2nd and 4th in terms of recall, 3rd and 4th in terms of precision. Both systems outperformed the baselines in all subtasks according to all metrics used. 1