Web wrapper validation

Authors:
Eng-huan Pek;Xue Li;Yaozong Liu
Affiliations:
School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Queensland, Australia;School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Queensland, Australia;National University of Defence Technology, Changsha, Hunan, China
Venue:
APWeb'03 Proceedings of the 5th Asia-Pacific web conference on Web technologies and applications
Year:
2003

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Abstract

Web wrapper extracts data from HTML document. The accuracy and quality of the information extracted by web wrapper relies on the structure of the HTML document. If an HTML document is changed, the web wrapper may or may not function correctly. This paper presents an Adjacency-Weight method to be used in the web wrapper extraction process or in a wrapper self-maintenance mechanism to validate web wrappers. The algorithm and data structures are illustrated by some intuitive examples.