However, all the evaluation methods mentioned that include human subjective evaluation provide less information for error analysis because they give only one score for each document or sentence.
evaluation methods have been proposed that present questions to human evaluators asking whether a sentence contains grammatical error(s) or other type of errors (Isahara, 1995;Joans et al., 2007;Uchimoto et al., 2007;Nagase et al., 2009).