A separation of determinism, Las Vegas and nondeterminism for picture recognition

被引:6
作者
Duris, P [1 ]
Hromkovic, J [1 ]
Inoue, K [1 ]
机构
[1] Rhein Westfal TH Aachen, Dept Comp Sci 1, D-52056 Aachen, Germany
来源
15TH ANNUAL IEEE CONFERENCE ON COMPUTATIONAL COMPLEXITY, PROCEEDINGS | 2000年
关键词
D O I
10.1109/CCC.2000.856752
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
The investigation of the computational power of randomized computations is one of the central tasks of current complexity and algorithm theory: In this paper for the first time a "strong" separation between the power of determinism, Las Vegas randomization, and nondeterminism for a computing model is proved. The computing model considered here are finite automata with two-dimensional input rapes (i.e., finite automata recognizing picture languages). Moreover, a hierarchy on the degree of nondeterminism of two-dimensional finite automata is established.
引用
收藏
页码:214 / 228
页数:15
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