positional features that have been employed by highwe can see , the baseline achieves an F-measure of performing resolvers such as Ng and Cardie ( 2002 ) 57.0 and a resolution accuracy of 48.4 .
improving machine learning approaches to coreference resolution
V Ng C Cardie
Each instance is represented by 33 lexical , grammatical , semantic , and positional features that have been employed by highwe can see , the baseline achieves an F-measure of performing resolvers such as Ng and Cardie ( 2002 ) 57.0 and a resolution accuracy of 48.4 . and Yang et al. ( 2003 ) , as described below .
positional features that have been employed by highwe can see , the baseline achieves an F-measure of performing resolvers such as @@CITATION 57.0 and a resolution accuracy of 48.4 .