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DOI: 10.4230/LIPIcs.ICALP.2016.114
URN: urn:nbn:de:0030-drops-62496
URL: http://drops.dagstuhl.de/opus/volltexte/2016/6249/
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Baschenis, Félix ; Gauwin, Olivier ; Muscholl, Anca ; Puppis, Gabriele

Minimizing Resources of Sweeping and Streaming String Transducers

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LIPIcs-ICALP-2016-114.pdf (0.5 MB)


Abstract

We consider minimization problems for natural parameters of word transducers: the number of passes performed by two-way transducers and the number of registers used by streaming transducers. We show how to compute in ExpSpace the minimum number of passes needed to implement a transduction given as sweeping transducer, and we provide effective constructions of transducers of (worst-case optimal) doubly exponential size. We then consider streaming transducers where concatenations of registers are forbidden in the register updates. Based on a correspondence between the number of passes of sweeping transducers and the number of registers of equivalent concatenation-free streaming transducers, we derive a minimization procedure for the number of registers of concatenation-free streaming transducers.

BibTeX - Entry

@InProceedings{baschenis_et_al:LIPIcs:2016:6249,
  author =	{F{\'e}lix Baschenis and Olivier Gauwin and Anca Muscholl and Gabriele Puppis},
  title =	{{Minimizing Resources of Sweeping and Streaming String Transducers}},
  booktitle =	{43rd International Colloquium on Automata, Languages, and Programming (ICALP 2016)},
  pages =	{114:1--114:14},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-013-2},
  ISSN =	{1868-8969},
  year =	{2016},
  volume =	{55},
  editor =	{Ioannis Chatzigiannakis and Michael Mitzenmacher and Yuval Rabani and Davide Sangiorgi},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2016/6249},
  URN =		{urn:nbn:de:0030-drops-62496},
  doi =		{10.4230/LIPIcs.ICALP.2016.114},
  annote =	{Keywords: word transducers, streaming, 2-way, sweeping transducers, minimization}
}

Keywords: word transducers, streaming, 2-way, sweeping transducers, minimization
Seminar: 43rd International Colloquium on Automata, Languages, and Programming (ICALP 2016)
Issue Date: 2016
Date of publication: 17.08.2016


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