tech,26-4-H05-1064,ak <term> Training </term> and <term> decoding </term> with the <term> model </term> requires summing over an exponential number of hidden-variable assignments : the required summations can be computed efficiently and exactly using <term> dynamic programming </term> .
measure(ment),4-6-H05-1064,ak The <term> model </term> gives an <term> F-measure improvement </term> of [ ? ] 1.25 % beyond the <term> base parser </term> , and an [ ? ] 0.25 % improvement beyond the <term> Collins ( 2000 ) reranker </term> .
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