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原文連結
論文資訊
- 類型：已發表論文
- 日期：2009
摘要
We study an 演化ary model of a 複雜系統 that evolves under catalytic dynamics and Darwinian selection and exhibits spontaneous growth, stasis and then a collapse of its structure. We find that the typical lifetime of the system increases sharply with the 多樣性 of its components or 物種. We also find that the prime reason for crashes is a naturally occurring internal fragility of the system. This fragility is captured in the 網絡 organizational character and is related to a reduced multiplicity of pathways or feedback loops between its components. These results apply to several generalizations of the model as well. This work suggests new parameters for understanding the robustness of evolving molecular 網絡s, ecosystems, societies and markets.
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