Regular expression and its applications to web information extraction
Yiqing Qin · Journal of Beijing Information Science & Technology University · 2011
A processing approach of the regular expression is proposed in connection with information extraction methods based on HTML-structure.The applications of the regular expression in the process of web information extraction is discussed,by using the regular expression's functions of matching、replacing、extraction and so on.The regular expression is used successfully in the whole process of web information extraction,such as webpage collecting、webpage optimization、rule learning and information extraction.