| Logistic模型的改进——双S形曲线模型的研究 |
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| 引用本文： | 刘加奇,袁文燕.Logistic模型的改进——双S形曲线模型的研究[J].数学的实践与认识,2008,38(17). |
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| 作者姓名： | 刘加奇 袁文燕 |
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| 作者单位： | 北京化工大学理学院,数学系,北京,100029 |
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| 摘 要： | 在Logistic模型的基础上,对一类空间饱和容量会随着时间发生变化的问题进行了讨论,指出了Lo-gistic模型应用在这类问题上的局限性,建立了解决该类问题的双S形曲线模型.对一组实际数据进行了拟合,结果表明双S形曲线模型能够更好地刻画实际问题,相对准确地预测未来的发展趋势.
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| 关 键 词： | Logistic模型 S形曲线 双S形曲线模型 |
Updated Logistic Model:Double S-shape Curve Model |
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| LIU Jia-qi,YUAN Wen-yan.Updated Logistic Model:Double S-shape Curve Model[J].Mathematics in Practice and Theory,2008,38(17). |
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| Authors: | LIU Jia-qi YUAN Wen-yan |
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| Abstract: | We discuss and analyze the problems which maximal capacity changes with time.Logistic model is not suitable for solving such kind of problems.We formulate double S-shape curve model.The numerical experiment shows that double S-shape curve model describes the practical problem correctly and predicts the tendency precisely. |
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| Keywords: | Logistic model S-shape curve double S-shape curve model |
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