Welcome to http://idkeruc.educn/sgwrap OHomepage of SGTrap System-lozilla Firefor 回 文件)编辑)查看转到G)书签0)工具T)帮助0 ERSI SGWrap(schema Guided Wrapper Generation) System Homepage Introduction News Updates Download Document I Background History Publications Developer ContactAcknowledgement What is SGWrap System Schema Gui ded Wrapper Generation System(SGWrap, for short) is a toolkit for web page nformation extraction. It can semi-automatically generate programs called wrapper built from extraction rules through user interactions. A wrapper for a set of web pages is a program used to extract contents from the pages and output strutured data for further processing. A wrapper, materialized as a java program by sgWrap system, for some certain pages can be easily generated using the visual sgWrap tool of the system and can be reused or integrated in many information systems10 Welcome to http://idke.ruc.edu.cn/sgwrap