【摘要】 提出了一种Web信息抽取与语义检索框架,采用定制本体模型,针对Web网页特点设计了抽取与语义标引策略,并在检索过程中引入语义推理机制,从而改善了信息检索的效果.最后介绍了基于Jena实现的该框架的原型系统.更多还原

【Abstract】 A framework of Web extraction and semantic search is brought out to improve efficiency of information retrieval.Based on a customized ontology model,semantic extraction policies for heterogeneous data sources and applied semantic inference mechanism are designed.A prototype system constructed with Jena is also described.更多还原