XSIU: An XML-Based Structure Incremental Update Algorithm in Mobile Database

View incremental update is an effective technique for improving performance in a mobile environment. Classical view incremental update strategies are not suitable for XML data update. In this paper, a new XML Structured-based Incremental Update (XSIU) algorithm is proposed, it can significantly improve the performance of the view incremental update. Simulations are carried out to evaluate the proposed methodology. Compared to the previous view incremental update based on priority, our scheme can increase the data freshness when the bandwidth sharply declines.