Using Derivation Trees for Informative Treebank Inter-Annotator Agreement Evaluation

Seth Kulick, Ann Bies, Justin Mott, Mohamed Maamouri, Beatrice Santorini and Anthony Kroch

This paper discusses the extension of a system developed for automatic discovery of treebank annotation inconsistencies over an entire corpus to the particular case of evaluation of inter-annotator agreement. This system makes for a more informative IAA evaluation than other systems because it pinpoints the inconsistencies and groups them by their structural types. We evaluate the system on two corpora - (1) a corpus of English web text, and (2) a corpus of Modern British English.

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