Efficient tree pattern matching

  • Authors:
  • S. R. Kosaraju

  • Affiliations:
  • Dept. of Comput. Sci., Johns Hopkins Univ., Baltimore, MD, USA

  • Venue:
  • SFCS '89 Proceedings of the 30th Annual Symposium on Foundations of Computer Science
  • Year:
  • 1989

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Abstract

A classic open problem on tree pattern matching is whether the naive O(mn)-step algorithm for finding all the occurrences of a pattern tree of size m in a text tree of size n can be improved. An O(nM/sup 0.75/ polylog(m))-step algorithm for this tree pattern matching problem is designed. The problems of linear string matching with don't care symbols and linear string max-min convolution are treated.