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Turning on the Turbo: Fast Third-Order Non-Projective Turbo Parsers

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journal contribution
posted on 01.08.2013, 00:00 authored by Andre F.T. Martins, Miguel B. Almeida, Noah A. Smith

We present fast, accurate, direct nonprojective dependency parsers with thirdorder features. Our approach uses AD3 , an accelerated dual decomposition algorithm which we extend to handle specialized head automata and sequential head bigram models. Experiments in fourteen languages yield parsing speeds competitive to projective parsers, with state-ofthe-art accuracies for the largest datasets (English, Czech, and German)


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