Extending the WN-Toolkit: dealing with polysemous words in the dictionary-based strategy

Abstract

In this paper we present an extension of the dictionary-based strategy for wordnet construction implemented in the WNToolkit. This strategy allows the extraction of information for polysemous English words if definitions and/or semantic relations are present in the dictionary. TheWN-Toolkit is a freely available set of programs for the creation and expansion of wordnets using dictionary-based and parallel-corpus based strategies. In previous versions of the toolkit the dictionarybased strategy was only used for translating monosemous English variants. In the experiments we have used Omegawiki and Wiktionary and we present automatic evaluation results for 24 languages that have wordnets in the Open Multilingual Wordnet project. We have used these existing versions of the wordnet to perform an automatic evaluation.