摘要 熱力學 depth is an appealing but flawed structural c

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原文連結

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論文資訊

• 類型：已發表論文
• 日期：1999

摘要

熱力學 depth is an appealing but flawed structural complexity measure. It depends on a set of macroscopic states for a system, but neither its original introduction by Lloyd and Pagels nor any follow-up work has considered how to select these states. Depth, therefore, is at root arbitrary. 計算 mechanics, an alternative approach to structural complexity, provides a definition for a system's minimal, necessary causal states and a procedure for finding them. We show that the rate of increase in 熱力學 depth, or dive, is the system's reverse-time Shannon 熵 rate, and so depth only measures degrees of macroscopic randomness, not structure. To hx this, we redefine the depth in terms of the causal state representation-epsilon-machines-and show that this representation gives the minimum dive consistent wi

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