标签: stanford-nlp
[] {0,3}的意义是什么?
([ner:PERSON] +)/ was |是/ /?/ [] {0,3} /画家|艺术家/
答案 0 :(得分:4)
来自the documentation:
[] Any token
[...]
X{n,m} X, at least n times but no more than m times
因此[]{0,3}最多匹配3个令牌。
[]{0,3}