Tile at random
نویسندگان
چکیده
منابع مشابه
Concentration independent random number generation in tile self-assembly
In this paper we introduce the robust coin flip problem in which one must design an abstract tile assembly system (aTAM system) whose terminal assemblies can be partitioned such that the final assembly lies within either partition with exactly probability 1/2, regardless of what relative concentration assignment is given to the tile types of the system. We show that robust coin flipping is poss...
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Behaviors of Winfree’s tile assembly systems (TASs) at high temperatures are investigated in combination with integer programming of a specific form called threshold programming. First, we propose a way to build bridges from the Boolean satisfiability problem (Sat) to threshold programming, and further to TAS’s behavior, in order to prove the NPhardness of optimizing temperatures of TASs that b...
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At the high resolutions attainable with the new generation space-borne sensors, the focus moves increasingly from spectral characteristics to geometric features. This trend is even more evident for urban areas which tend to show an unpaired concentration of linear features with respect to any other land cover. This naturally applies to both optical and radar images, and suggests one may use loc...
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In the classical model of tile self-assembly, unit square tiles translate in the plane and attach edgewise to form large crystalline structures. This model of self-assembly has been shown to be capable of asymptotically optimal assembly of arbitrary shapes and, via information-theoretic arguments, increasingly complex shapes necessarily require increasing numbers of distinct types of tiles. We ...
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ABSfRACf The Pitman closeness criterion is an intrinsic measure of the comparative behavior of two estimators. based solely on their joint distribution. It generally entails less stringent regulari ty condi tions than in other measures. But. there are some undesirable features of this measure. The past few years have witnessed some developments on Pitman-closeness in its tributaries. and a crit...
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2012
ISSN: 1745-2473,1745-2481
DOI: 10.1038/nphys2392