Research on Method of Learning Web Information Extraction Rule Based on XPATH

摘要

This paper identifies theme blocks through cleaning website on the basis of the research in HTML documents structure, designs and implements a theme information extraction (IE) method with web based on XPATH, studies the key point of this method-XPATH expression that expresses the IE path, and then constructs an XPATH automatic algorithm. Thereby, IE rules can be learned automatically and generated to implement Web IE.