An Improved Ontology-Based Web Information Extraction

Since most of the Web information is extracted according to content, this research introduce Webpage segmentation into the stage of Webpage pretreatment, by analyzing the ontology-based Web information extraction technology. First, get the extraction region out of the Webpage by Webpage segmentation, second process it according to ontology extraction rules, finally get the information needed. The extraction algorithm promoted by this research have higher precision and recall rate, which will lead to good prospects in practical applications.