XPath Node Selection over Grammar-Compressed Trees

@inproceedings{Maneth2013XPathNS,
  title={XPath Node Selection over Grammar-Compressed Trees},
  author={Sebastian Maneth and Tom Sebastian},
  booktitle={TTATT},
  year={2013}
}
XML document markup is highly repetitive and therefore well compressible using grammar-based compression. Downward, navigational XPath can be executed over grammar-compressed trees in PTIME: the query is translated into an automaton which is executed in one pass over the grammar. This result is well-known and has been mentioned before. Here we present precise bounds on the time complexity of this problem, in terms of big-O notation. For a given grammar and XPath query, we consider three… Expand
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