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arXiv 1602.03540cs.DC
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同音异义词群体方案

Homonym Population Protocols

Olivier Bournez, Johanne Cohen, Mikaël Rabie

摘要:

人口协议模型是由Angluin \emph{et al.}提出的一种被动移动匿名有限状态代理模型。该模型通过对的相互作用计算其输入的多集上的谓词。最初的人口协议模型已被证明只能计算半线性谓词,最近已被扩展到各种方式。在Guerraoui和Ruppert的社区协议模型中,代理具有唯一的标识符,但只能存储有限数量的标识符。社区协议模型为图灵机提供了$O(n\log n)$空间。我们考虑上述两个模型的变化,我们得到一个整体的景观,涵盖和扩展已经知道的结果。也就是说,通过考虑同音异义词的情况下,也就是说的情况下,当几个代理可能共享相同的标识符,我们提供了一个层次结构,从没有标识符的情况下(人口协议模型)的唯一标识符的情况下(社区协议模型)。我们特别获得的空间$O(\log^{O(1)} n)$上的任何图灵机可以模拟至少$O(\log^{O(1)} n)$标识符,结果填补了所有以前的研究中留下的空白。我们的研究结果还扩展和重温,特别是Chatzigiannakis \emph{et al.}人口协议携带图灵机在有限的空间提供的层次结构,解决了这项工作之间的差距每代理空间$o(\log \log n)$(证明是等效的人口协议)和$O(\log n)$(证明是等效的图灵机)。

英文摘要:

The population protocol model was introduced by Angluin \emph{et al.} as a model of passively mobile anonymous finite-state agents. This model computes a predicate on the multiset of their inputs via interactions by pairs. The original population protocol model has been proved to compute only semi-linear predicates and has been recently extended in various ways. In the community protocol model by Guerraoui and Ruppert, agents have unique identifiers but may only store a finite number of the identifiers they already heard about. The community protocol model provides the power of a Turing machine with a $O(n\log n)$ space. We consider variations on the two above models and we obtain a whole landscape that covers and extends already known results. Namely, by considering the case of homonyms, that is to say the case when several agents may share the same identifier, we provide a hierarchy that goes from the case of no identifier (population protocol model) to the case of unique identifiers (community protocol model). We obtain in particular that any Turing Machine on space $O(\log^{O(1)} n)$ can be simulated with at least $O(\log^{O(1)} n)$ identifiers, a result filling a gap left open in all previous studies. Our results also extend and revisit in particular the hierarchy provided by Chatzigiannakis \emph{et al.} on population protocols carrying Turing Machines on limited space, solving the problem of the gap left by this work between per-agent space $o(\log \log n)$ (proved to be equivalent to population protocols) and $O(\log n)$ (proved to be equivalent to Turing machines).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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