Paper: Using Unknown Word Techniques to Learn Known Words

ACL ID D10-1088
Title Using Unknown Word Techniques to Learn Known Words
Venue Conference on Empirical Methods in Natural Language Processing
Session Main Conference
Year 2010
Authors

Unknown words are a hindrance to the perfor- mance of hand-crafted computational gram- mars of natural language. However, words with incomplete and incorrect lexical entries pose an even bigger problem because they can be the cause of a parsing failure despite being listed in the lexicon of the grammar. Such lex- ical entries are hard to detect and even harder to correct. We employ an error miner to pinpoint words with problematic lexical entries. An auto- mated lexical acquisition technique is then used to learn new entries for those words which allows the grammar to parse previously uncovered sentences successfully. We test our method on a large-scale grammar of Dutch and a set of sentences for which this grammar fails to produce a parse. The appli- cation of the method enables the gramm...