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- 774 creator jennifer-foster.
- 774 creator josef-van-genabith.
- 774 type InProceedings.
- 774 label "Parser Evaluation and the BNC: Evaluating 4 constituency parsers with 3 metrics".
- 774 sameAs 774.
- 774 abstract "We evaluate discriminative parse reranking and parser self-training on a new English test set using four versions of the Charniak parser and a variety of parser evaluation metrics. The new test set consists of 1,000 hand-corrected British National Corpus parse trees. We directly evaluate parser output using both the Parseval and the Leaf Ancestor metrics. We also convert the hand-corrected and parser output phrase structure trees to dependency trees using a state-of-the-art functional tag labeller and constituent-to-dependency conversion tool, and then calculate label accuracy, unlabelled attachment and labelled attachment scores over the dependency structures. We find that reranking leads to a performance improvement on the new test set (albeit a modest one). We find that self-training using BNC data leads to significantly better results. However, it is not clear how effective self-training is when the training material comes from the North American News Corpus.".
- 774 hasAuthorList authorList.
- 774 hasTopic Linguistics.
- 774 isPartOf proceedings.
- 774 keyword "Corpus (creation, annotation, etc.)".
- 774 keyword "Evaluation methodologies".
- 774 keyword "Parsing Systems".
- 774 title "Parser Evaluation and the BNC: Evaluating 4 constituency parsers with 3 metrics".