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| | 逻辑斯谛方程有多种推广形式,以适应更复杂的现实情况: | | 逻辑斯谛方程有多种推广形式,以适应更复杂的现实情况: |
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| − | * '''广义逻辑斯谛曲线(理查兹曲线)''':引入形状参数<math>\nu</math>,方程形式为<math>\frac{dN}{dt} = \frac{λ}{\nu} N [1-(\frac{N}{K})^\nu]</math>,以增强拟合灵活性,常用于不对称增长或流行病建模<ref>Richards, F. J. (1959). A Flexible Growth Function for Empirical Use. Journal of Experimental Botany, 10(2), 290–301.</ref><ref>Tjørve, E., & Tjørve, K. M. C. (2010). A unified approach to the Richards-model family for use in growth analyses: why we need only two model forms. Journal of Theoretical Biology, 267(3), 417–425.</ref>。 | + | * '''广义逻辑斯谛曲线(理查兹曲线)''':引入形状参数<math>\nu</math>,方程形式为<math>\frac{dN}{dt} = \frac{λ}{\nu} N [1-(\frac{N}{K})^\nu]</math>,以增强拟合灵活性,常用于不对称增长或流行病建模<ref>Richards, F. J. (1959). A Flexible Growth Function for Empirical Use. Journal of Experimental Botany, 10(2), 290–301.</ref><ref>Tjørve, E., & Tjørve, K. M. C. (2010). A unified approach to the Richards-model family for use in growth analyses: why we need only two model forms. Journal of Theoretical Biology, 267(3), 417–425.</ref>; |
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| − | * '''时滞逻辑斯谛方程''':考虑种群对资源影响的延迟反馈,方程形式为<math>\frac{dN}{dt} = λN(t)[1-\frac{N(t-\tau)}{K}]</math>,可能产生振荡等复杂动态<ref>Hutchinson, G. E. (1948). Circular causal systems in ecology. Annals of the New York Academy of Sciences, 50(4), 221–246.</ref>。 | + | * '''时滞逻辑斯谛方程''':考虑种群对资源影响的延迟反馈,方程形式为<math>\frac{dN}{dt} = λN(t)[1-\frac{N(t-\tau)}{K}]</math>,可能产生振荡等复杂动态<ref>Hutchinson, G. E. (1948). Circular causal systems in ecology. Annals of the New York Academy of Sciences, 50(4), 221–246.</ref>; |
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| − | * '''空间逻辑斯谛模型''':结合反应-扩散方程,研究种群在空间中的分布与传播模式<ref>Fisher, R. A. (1937). The wave of advance of advantageous genes. Annals of Eugenics, 7(4), 355–369.</ref>。 | + | * '''空间逻辑斯谛模型''':结合反应-扩散方程,研究种群在空间中的分布与传播模式<ref>Fisher, R. A. (1937). The wave of advance of advantageous genes. Annals of Eugenics, 7(4), 355–369.</ref>; |
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| − | * '''冈珀茨函数''':常用于描述生长速度不对称的生长过程,如肿瘤生长<ref>Gompertz, B. (1825). On the nature of the function expressive of the law of human mortality. Philosophical Transactions of the Royal Society of London, 115, 513–585.</ref>。 | + | * '''冈珀茨函数''':常用于描述生长速度不对称的生长过程,如肿瘤生长<ref>Gompertz, B. (1825). On the nature of the function expressive of the law of human mortality. Philosophical Transactions of the Royal Society of London, 115, 513–585.</ref>; |
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| − | * '''超博拉斯特函数''':用于更复杂的生长模式建模<ref>West, G. B., Brown, J. H., & Enquist, B. J. (2001). A general model for ontogenetic growth. Nature, 413(6856), 628–631.</ref>。 | + | * '''超博拉斯特函数''':用于更复杂的生长模式建模<ref>West, G. B., Brown, J. H., & Enquist, B. J. (2001). A general model for ontogenetic growth. Nature, 413(6856), 628–631.</ref> |
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| | 在统计学中,逻辑斯谛函数的多元推广是softmax函数,用于处理多类别分类问题。 | | 在统计学中,逻辑斯谛函数的多元推广是softmax函数,用于处理多类别分类问题。 |