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Author Goles, E.; Moreira, A.; Rapaport, I.
Title Communication complexity in number-conserving and monotone cellular automata Type
Year 2011 Publication Theoretical Computer Science Abbreviated Journal Theor. Comput. Sci.
Volume 412 Issue 29 Pages 3616-3628
Keywords Cellular automata; Communication complexity; Elementary cellular automata; Number-conserving
Abstract One third of the elementary cellular automata (CAs) are either number-conserving (NCCAs) or monotone (increasing or decreasing). In this paper we prove that, for all of them, we can find linear or constant communication protocols for the prediction problem. In other words, we are able to give a succinct description for their dynamics. This is not necessarily true for general NCCAs. In fact, we also show how to explicitly construct, from any CA, a new NCCA which preserves the original communication complexity. (C) 2011 Elsevier B.V. All rights reserved.
Address [Moreira, A] Univ Tecn Federico Santa Maria, Dept Informat, Valparaiso, Chile, Email: eric.chacc@uai.cl
Corporate Author Thesis
Publisher Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0304-3975 ISBN Medium
Area Expedition Conference
Notes (up) WOS:000292077200019 Approved
Call Number UAI @ eduardo.moreno @ Serial 153
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Author Goles, E.; Moreira, A.
Title Number-Conserving Cellular Automata and Communication Complexity: A Numerical Exploration Beyond Elementary CAs Type
Year 2012 Publication Journal Of Cellular Automata Abbreviated Journal J. Cell. Autom.
Volume 7 Issue 2 Pages 151-165
Keywords Number-Conserving; Communication Complexity; One-dimensional Cellular Automata
Abstract We perform a numerical exploration of number-conserving cellular automata (NCCA) beyond the class of elementary CAs, in search of examples with high communication complexity. We consider some possible generalizations of the elementary rule 184 (a minimal model of traffic, which is the only non-trivial elementary NCCA). as well as the classes of NCCAs which minimally extend either the radius or the state set (with respect to the 2 states and radius 1 of the elementary case). Both for 3 states and radius 1, and for 2 stales and radius 2, NCCA appear that are conjectured to have maximal (exponential) communication complexity. Examples are given also for (conjectured) linear and quadratic behaviour.
Address [Goles, Eric] Univ Adolfo Ibanez, Santiago, Chile, Email: andres.moreira@usm.cl
Corporate Author Thesis
Publisher Old City Publishing Inc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1557-5969 ISBN Medium
Area Expedition Conference
Notes (up) WOS:000302978700004 Approved
Call Number UAI @ eduardo.moreno @ Serial 210
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