NDLI: XML Tree Pattern Matching Algorithms

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XML Tree Pattern Matching Algorithms

Content Provider	Semantic Scholar
Author	Ambati, Lakshmi Tulasi. Murthy, Yelisetty S. S. R. Kavitha, S.
Copyright Year	2012
Abstract	In the present day digital world, it is imperative that all organizations and enterprises facilitate efficient processing of queries on XML data. XML queries typically specify patterns of selection predicates on multiple elements that have specified tree structured relationships. The primitive tree-structured relationships are parent-child and ancestordescendant. Finding all occurrences of these relationships in an XML database is a core operation for XML query processing. In this paper the pattern matching algorithms TwigStack and TwigStackList are discussed. The behavior of TwigStack is analyzed, and a comparison of these two algorithms is attempted. The TwigStack algorithm the initial holistic algorithm, has features of performing simultaneous scan over streams of XML nodes to match their structural relationships holistically, reducing a number of unnecessary intermediate results, and skipping XML nodes that will not contribute to final answers. The family of holistic pattern matching algorithms has appeared as the major important algorithms for processing XML query patterns due to its efficiency and performance advantage. The experimental results show that the query performance is significantly improved especially for queries having relatively more complex structures and/or higher selectivities. Keywords––Xml,TwigStack,TwigStackList;
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.ijerd.com/paper/vol2-issue1/F02013945.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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