Overview of the 2012 Shared Task on Parsing the Web
نویسندگان
چکیده
We describe a shared task on parsing web text from the Google Web Treebank. Participants were to build a single parsing system that is robust to domain changes and can handle noisy text that is commonly encountered on the web. There was a constituency and a dependency parsing track and 11 sites submitted a total of 20 systems. System combination approaches achieved the best results, however, falling short of newswire accuracies by a large margin. The best accuracies were in the 80-84% range for F1 and LAS; even part-ofspeech accuracies were just above 90%.
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