| DNA序列的非线性分析 |
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| 引用本文： | 蒋丽丽,高洁,徐振源.DNA序列的非线性分析[J].江南大学学报(自然科学版),2009,8(4):470-474. |
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| 作者姓名： | 蒋丽丽 高洁 徐振源 |
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| 作者单位： | 江南大学,理学院,江苏,无锡,214122 |
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| 摘 要： | 以10条真菌DNA序列为原始数据,根据序列CGR游走点的弧度值将DNA序列转换成相应的时间序列.对转换后的时间序列进行多重分形Hurst分析,10条DNA序列均具有长期记忆性;通过对表征系统混沌性质的3个统计特征量:关联维数、Kolmogorov熵和最大lyapunov指数的分析表明,10条DNA序列均呈现出混沌特性,说明DNA序列中的长期记忆性与混沌特性存在一定的对应关系.
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| 关 键 词： | 非线性动力学 多重分形 R/S模型 混沌分析 |
Nonlinear Analysis of DNA Sequence |
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| JIANG Li-li,GAO Jie,XU Zhen-yuan.Nonlinear Analysis of DNA Sequence[J].Journal of Southern Yangtze University:Natural Science Edition,2009,8(4):470-474. |
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| Authors: | JIANG Li-li GAO Jie XU Zhen-yuan |
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| Institution: | School of Science;Jiangnan University;Wuxi 214122;China |
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| Abstract: | In this paper,10 fungi DNA sequences are translated into time series according to the chaos game representation of these DNA sequences.Firstly,the Hurst exponent of 10 time series is calculated and their long memory process is further analyzed according their Hurst exponent.It is found that these gene sequences have long memory process.Secondly,To describe the chaos process of the DNA sequences,the correlation dimension,entropy and Lyapunov exponents of the time series are calculated,and the result is an in... |
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| Keywords: | nonlinear dynamics Mmultifractal R/S model chaos analysis |
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