Parser Evaluation over Local and Non-Local Deep Dependencies in Large Corpora

Emily Bender; Daniel Flickinger; Stephan Oepen; Yi Zhang

In: Conference on Empirical Methods in Natural Language Processing. Conference on Empirical Methods in Natural Language Processing (EMNLP-2011), located at Empirical Methods, July 27-29, Edinburgh, United Kingdom, Association for Computational Linguistics, 2011.


In order to obtain a fine-grained evaluation of parser accuracy over naturally occurring text, we study 100 examples each of ten reasonably frequent linguistic phenomena, randomly selected from a parsed version of the English Wikipedia. We construct a corresponding set of gold-standard target dependencies for these 1000 sentences, operationalize mappings to these targets from seven state-of-theart parsers, and evaluate the parsers against this data to measure their level of success in identifying these dependencies.

Weitere Links

D11-1037.pdf (pdf, 191 KB )

Deutsches Forschungszentrum für Künstliche Intelligenz
German Research Center for Artificial Intelligence