| 基因预测中的信噪比计算新模型 |
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| 引用本文： | 万芷君,明媚,王婷,栗丽兵. 基因预测中的信噪比计算新模型[J]. 广西科学院学报, 2013, 29(1): 11-13,16 |
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| 作者姓名： | 万芷君 明媚 王婷 栗丽兵 |
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| 作者单位： | 桂林电子科技大学计算机科学与工程学院 |
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| 摘 要： | 以快速傅立叶变换(FFT)求出DNA序列功率谱后,用重复计算实验的办法,对大量DNA序列中核苷酸的分布情况进行统计,得出综合考察变量,然后以核苷酸分布频数和DNA序列长度为自变量,建立Z-curve映射规则得到DNA序列信噪比的新模型,并进行实例分析。新模型不需要对序列进行离散Fourier变换(DFT),而且不要求DNA指示序列长度必须为3的倍数,应用范围更大。
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| 关 键 词： | 信噪比 基因预测 数字映射 功率谱 |
| 收稿时间： | 2012-12-20 |
| 修稿时间： | 2013-01-08 |
Calculation of Signal-to-Noise Ratio in Gene Prediction |
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| WAN Zhi-jun,MING Mei,WANG Ting and LI Li-bing. Calculation of Signal-to-Noise Ratio in Gene Prediction[J]. Journal of Guangxi Academy of Sciences, 2013, 29(1): 11-13,16 |
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| Authors: | WAN Zhi-jun MING Mei WANG Ting LI Li-bing |
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| Affiliation: | (School of Computer Science and Engineering of Guilin University of Electronic Technology,Guilin,Guangxi,541004,China) |
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| Abstract: | Fast Fourier Transform (FFT) was used to get the power spectrum.By means of repeating computational experiments,the distribution frequency of nucleotides distribution was statistically analyzed in a large number of DNA sequences to get a aggregate variable.Then let the distribution frequency and the length of the DNA sequence be the independent variable,the SNR under Z-curve was calculated to establish the new model, which avoids the constraints of DNA sequence length and Discrete Fourier Transform (DFT) in traditional methods,so it''s easy to popularize. |
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| Keywords: | signal-to-noise ratio gene prediction digital mapping power spectrum |
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