...业论文_毕业论文范文 关键字：信息抽取；垂直搜索引擎；结构化信息提取；JTree；XPath [gap=359]Keywords： Information search;Plumb search engine;structed information extraction;Jtree;xpath; ..
Informationextraction is asystem that can extractspecific information from lots textsandcan transform that information into structuredatauser can usethat on various purposes.