Even beyond top-down and shift-reduce parser, NLTK also offers "chart parsers" that create partial hypotheses that a given sequence can be continued to fulfill a rule.
甚至，除了top - down和shift - reduce解析器以外，NLTK还提供了“chart解析器”，它可以创建部分假定，这样一个给定的序列就可以继而完成一个规则。
The additional text analysis performed by the regular expression annotator does have a performance impact and will reduce the maximum parser throughput.
由正则表达式注释器执行的额外文本分析会影响性能，会降低解析器的最大吞吐量。
The additional text analysis performed by the regular expression annotator does have a performance impact and will reduce the maximum parser throughput.
由正则表达式注释器执行的额外文本分析会影响性能，会降低解析器的最大吞吐量。
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