part of speech

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，应当区分历时时、语法修辞学、固定时性。

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.

在词现模型基,过融合词性标题隐含关键词信息,将主题与内容相结合,来提取关键词摘要。