Table 3 shows that RDRsegmenter obtains the highest F 1 score.
on the benchmark Vietnamese treebank (Nguyen et al., 2009), experimental results show that our method obtains better accuracy and performance speed than the previous state-of-the-art methods JVnSegmenter (Nguyen et al., 2006), vnTokenizer (Le et al., 2008), DongDu (Luu and Kazuhide, 2012) and UETsegmenter (Nguyen and Le, 2016).