A Universal Part-of-Speech Tagset

To facilitate future research in unsupervised induction of syntactic structure and to standardize best-practices, we propose a tagset that consists of twelve universal part-ofspeech categories. In addition to the tagset, we develop a mapping from 25 different treebank tagsets to this universal set. As a result, when combined with the original treebank data, this universal tagset and mapping produce a dataset consisting of common partsof-speech for 22 different languages. We highlight the use of this resource via two experiments, including one that reports competitive accuracies for unsupervised grammar induction without gold standard part-of-speech tags.

• Type: Journal
• Year: 2011
• Where: CORR
• Authors: Slav Petrov, Dipanjan Das, Ryan McDonald
• Keywords: CORR 2011, Education, Original Treebank Data, Universal Part-ofspeech Categories, Unsupervised Grammar Induction