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The output size problem for string-to-tree transducers
Stellenbosch University.
Umeå University, Faculty of Science and Technology, Department of Computing Science. (Natural and Formal Languages)ORCID iD: 0000-0001-7349-7693
University of Stellenbosch.
2018 (English)In: Journal of Automata, Languages and Combinatorics, Vol. 23, no 1-3, p. 19-38Article in journal (Refereed) Published
Abstract [en]

The output size problem, for a string-to-tree transducer, is to determine the asymptotic behavior of the function describing the maximum size of output trees, with respect to the length of input strings. We show that the problem to determine, for a given regular expression, the worst-case matching time of a backtracking regular expression matcher, can be reduced to the output size problem. The latter can, in turn, be solved by determining the degree of ambiguity of a non-deterministic finite automaton.

Place, publisher, year, edition, pages
Institut für Informatik, Justus-Liebig-Universität Giessen , 2018. Vol. 23, no 1-3, p. 19-38
Keywords [en]
string-to-tree transducers, output size, backtracking regular expression matchers, NFA ambiguity
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:umu:diva-142098OAI: oai:DiVA.org:umu-142098DiVA, id: diva2:1158650
Available from: 2017-11-20 Created: 2017-11-20 Last updated: 2018-11-09Bibliographically approved

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Drewes, Frank

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CiteExportLink to record
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