A Query Keywords Based Approach for Noisy Data Elimination

It´s important to eliminate noisy data for information extraction on the deep web. In this paper, we propose a new approach called ENDW(Eliminating Noisy Data in Web pages) based on query keywords and DOM tools to eliminate noisy data. Query keywords submitted to backend databases always appear in deep web pages. The boundary between useful data region and noisy data region is concerned with the position where the query keywords appear. Once we found this boundary, we could retain useful data region and eliminate noisy data region. Our experiments show that the approach is effective and stable.