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电路复杂性
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电路复杂性
Encyclopedia
理学
计算复杂性
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circuit complexity
电路复杂性
电路复杂性(circuit complexity)是计算复杂性的研究方向之一。电路(circuit)是与图灵机不同的一种计算模型。电路由门(gate)和导线(wire)组成,门与门之间通过导线连接。电路的规模(size)是电路的门数或导线数,电路的深度(depth)是从输入到输出的最长路径的长度。电路复杂性通常是指电路的规模或深度。一个计算问题的电路复杂性是计算此问题的电路的最小规模或深度。电路复杂性的下界证明是难度很大、富有挑战性的研究方向。
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