Approximating Tree Edit Distance through String Edit Distance
نویسندگان
چکیده
منابع مشابه
Learning String Edit Distance
In many applications, it is necessary to determine the similarity of two strings. A widely-used notion of string similarity is the edit distance: the minimum number of insertions, deletions, and substitutions required to transform one string into the other. In this report, we provide a stochastic model for string edit distance. Our stochastic model allows us to learn the optimal string edit dis...
متن کاملLearning String Edit Distance 1
In many applications, it is necessary to determine the similarity of two strings. A widely-used notion of string similarity is the edit distance: the minimum number of insertions, deletions, and substitutions required to transform one string into the other. In this report, we provide a stochastic model for string edit distance. Our stochastic model allows us to learn a string edit distance func...
متن کاملTree Edit Distance, Alignment Distance and Inclusion
We survey the problem of comparing labeled trees based on simple local operations of deleting, inserting and relabeling nodes. These operations lead to the tree edit distance, alignment distance and inclusion problem. For each problem we review the results available and present, in detail, one or more of the central algorithms for solving the problem.
متن کاملTree edit distance with gaps
The purpose of this paper is to study the definition of edit distances with convex gap weights for trees. In the special case of strings, this problem has yield to the definition of classical solutions: Galil and Giancarlo produced in [2] an algorithm in O(n log(n)), for example. For trees, standart edit distance algorithms – [7] or more recently [4] with a O(n log(n))) solution – are concerned...
متن کاملLearning Stochastic Tree Edit Distance
Trees provide a suited structural representation to deal with complex tasks such as web information extraction, RNA secondary structure prediction, or conversion of tree structured documents. In this context, many applications require the calculation of similarities between tree pairs. The most studied distance is likely the tree edit distance (ED) for which improvements in terms of complexity ...
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ژورنال
عنوان ژورنال: Algorithmica
سال: 2008
ISSN: 0178-4617,1432-0541
DOI: 10.1007/s00453-008-9213-z