¹School of Computer Science and Technology,Shandong University, Jinan, China
²School of Mechanical,Electrical & Information Engineering,Shandong University At Weihai,Weihai,China

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Abstract—Parsing the XML document is generally accepted to be a major bottleneck in XML processing,especially when meeting the invalid elements,it will reduce the parsing's efficiency.In order to skip the invalid elements of the XML document,we propose a new XML filtering method based on hash table and stream index.The hash table stores the location information of elements, in order to judge the relationships of elements; the stream index locates the elements accurately, in order to skip the invalid elements quickly.We apply them to lazy DFA and get experimental results. The experimental results show that our method has a good filtering performance,which can improve the efficiency obviously.

Index Terms—XML;Hash Table;Stream index;Filtering

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Cite: Zhao Heji, Xia Weijian, and Zhao Jiasheng, "The Research on XML Filtering Model using Lazy DFA," Journal of Software vol. 7, no. 8, pp. 1759-1766, 2012.