Since without word boundaries information, it is intuitive to use character information 1 The code is available at https://github.com/ DianboWork/Graph4CNER only for Chinese NER (He and Wang, 2008;Liu et al., 2010;Li et al., 2014), although such methods could result in the disregard of word information.
word information is very useful in Chinese NER, because word boundaries are usually the same as named entity boundaries.