part of speech

1.When transformation of parts of speech takes place, we should distinguish synchronism from diachronism, grammar from rhetoric anti fixity from temporariness.

摘要转类，应当区分历和、语法和修辞学、固定的和临性的。

2.According to the confluction between part of speech and the implied keywords of the title,combined the subject and contend,to extract the keywords and Abstract.

在词现模型的基础上,通过融合词性和标关键词信息,将主与内容相结合,来提取关键词和摘要。