pattern frequency meaning in English

刀夹(显示)频率
刀夹频率

This idea was not invented whole cloth , of course ; there is a variety of research into language recognition differentiation , cryptographic unicity distances of english , pattern frequencies , and related areas , that strongly suggest trigrams are a good unit
当然，这个想法不是凭空而来的；对于语言识别区分、英语的密码唯一长度、模式频率和相关领域所进行的大量研究极力推荐将三元模型作为一个良好的单元。