Model-Theoretic Characterization of Boolean and Arithmetic Circuit Classes of Small Depth
Model-Theoretic Characterization of Boolean and Arithmetic Circuit Classes of Small Depth
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小深度布尔和算术电路类的模型理论表征
DOI:
10.1145/3209108.3209179
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
H. Vollmer
中科院分区:
文献类型:
--
作者:
A. Durand;A. Haak;H. Vollmer
In this paper we give a characterization of both Boolean and arithmetic circuit classes of logarithmic depth in the vein of descriptive complexity theory, i.e., the Boolean classes NC1, SAC1 and AC1 as well as their arithmetic counterparts #NC1, #SAC1 and #AC1. We build on Immerman's characterization of constant-depth polynomial-size circuits by formulae of first-order logic, i.e., AC0 = FO, and augment the logical language with an operator for defining relations in an inductive way. Considering slight variations of the new operator, we obtain uniform characterizations of the three just mentioned Boolean classes. The arithmetic classes can then be characterized by functions counting winning strategies in semantic games for formulae characterizing languages in the corresponding Boolean class.
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DOI:
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期刊:
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影响因子:
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影响因子:
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