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Space Efficient Algorithms for Ordered Tree Comparison

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Abstract

In this paper we present techniques to significantly improve the space complexity of several ordered tree comparison algorithms without sacrificing the corresponding time complexity. We present new algorithms for computing the constrained ordered tree edit distance and the alignment of (ordered) trees. The techniques can also be applied to other related problems.

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Authors and Affiliations

  1. Dept. of Computer Science, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong

    Lusheng Wang

  2. Dept. of Computer Science, University of Western Ontario, London, ON, N6A 5B7, Canada

    Kaizhong Zhang

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  1. Lusheng Wang
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  2. Kaizhong Zhang
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Correspondence to Lusheng Wang.

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Wang, L., Zhang, K. Space Efficient Algorithms for Ordered Tree Comparison. Algorithmica 51, 283–297 (2008). https://doi.org/10.1007/s00453-007-9100-z

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  • DOI: https://doi.org/10.1007/s00453-007-9100-z

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