本课程涵盖了语法、语意及对话处理模型，著重在机器学习或是以语料库为基础的方法及演算法。
It covers syntactic, semantic and discourse processing models, emphasizing machine learning or corpus-based methods and algorithms.
MASKPROC这个掩码中包括的所有的位是为特定处理器语意保留的。
SHF_MASKPROC All bits included in this mask are reserved for processor-specific semantics.
语意是一个字串，和记号很像，但是它已经是一般化了的，这样同一个词的不同形式就可以一样来处理。
A lexeme is a string, just like a token, but it has been normalized so that different forms of the same word are made alike.
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