
With the prevalence of Web applications, expediting multiple queries over streaming XML has become a core challenge due to one-pass processing and limited resources. Recently proposed Hole-Filler model is low consuming for XML fragments transmission and evaluation; however existing work addressed the multiple query problem over XML tuple streams instead of XML fragment streams. By taking advantage of schema information for XML, this paper proposes a model of tid+ tree to construct multiple queries over XML fragments and to prune off duplicate and dependent operations. Based on tid+ tree, it then proposes a notion of FQ-Index as the core in M-XFPro to index both multiple queries and XML fragments for processing multiple XPath queries involving simple path and twig path patterns. We illustrate the effectiveness of the techniques developed with a detailed set of experiments.
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