A Markov Chain Algorithm for Compression in Self-Organizing Particle Systems
A Markov Chain Algorithm for Compression in Self-Organizing Particle Systems
复制标题
自组织粒子系统压缩的马尔可夫链算法
DOI:
10.1145/2933057.2933107
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Richa, Andréa W.
中科院分区:
文献类型:
--
作者:
Cannon, Sarah;Daymude, Joshua J.;Randall, Dana;Richa, Andréa W.
We consider programmable matter as a collection of simple computational elements (or particles) with limited (constant-size) memory that self-organize to solve system-wide problems of movement, configuration, and coordination. Here, we focus on the compression problem, in which the particle system gathers as tightly together as possible, as in a sphere or its equivalent in the presence of some underlying geometry. More specifically, we seek fully distributed, local, and asynchronous algorithms that lead the system to converge to a configuration with small perimeter. We present a Markov chain based algorithm that solves the compression problem under the geometric amoebot model, for particle systems that begin in a connected configuration with no holes. The algorithm takes as input a bias parameter λ, where λ > 1 corresponds to particles favoring inducing more lattice triangles within the particle system. We show that for all λ > 5, there is a constant α > 1 such that at stationarity with all but exponentially small probability the particles areα-compressed, meaning the perimeter of the system configuration is at most α ⋅pmin, wherepminis the minimum possible perimeter of the particle system. We additionally prove that the same algorithm can be used for expansion for small values of λ in particular, for all0< λ < √2, there is a constant β < 1 such that at stationarity, with all but an exponentially small probability, the perimeter will be at least β ⋅pmax, wherepmaxis the maximum possible perimeter.
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DOI:
10.1016/j.tcs.2008.07.026
发表时间:
2008
期刊:
Theor. Comput. Sci.
影响因子:
--
作者:
P. Flocchini;G. Prencipe;N. Santoro;P. Widmayer
通讯作者:
P. Widmayer
DOI:
10.1007/978-3-319-21999-8_8
发表时间:
2015
期刊:
ArXiv
影响因子:
--
作者:
Zahra Derakhshandeh;Robert Gmyr;Thim Strothmann;Rida A. Bazzi;Andrea W. Richa;Christian Scheideler
通讯作者:
Christian Scheideler
DOI:
--
发表时间:
2017
期刊:
International Conference of Distributed Computing and Networking
影响因子:
--
作者:
Giuseppe Antonio Di Luna;P. Flocchini;G. Prencipe;N. Santoro;G. Viglietta
通讯作者:
G. Viglietta
DOI:
--
发表时间:
2008
期刊:
International Conference on Principles of Distributed Systems
影响因子:
--
作者:
R. Klasing;A. Kosowski;A. Navarra
通讯作者:
A. Navarra
影响因子:
1.1
作者:
R. Klasing;A. Kosowski;A. Navarra
通讯作者:
A. Navarra