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An Empirical Comparison of Unknown Word Prediction Methods

Abstract We compare two types of methods which deal with unknown words in the context of computational grammars. Methods of the first type are based on the idea of supertagging and use a tagger to predict lexical descriptions for unknown tokens in a given input. The second type of methods perform lexical acquisition (LA) which, in the context of this paper, refers to the automatic acquisition of new lexical entries for the lexicon of a given grammar.

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