PWM:位置权重矩阵
“位置权重矩阵”的英文全称为Position Weight Matrix。在学术研究,尤其是在生物信息学、计算生物学等数学相关的专业领域,为了书写和使用的便捷,常将其缩写为PWM。这一矩阵模型主要用于序列分析,通过量化的方式评估特定序列模式中各个位置核苷酸或氨基酸的重要性。
Position Weight Matrix具体释义
Position Weight Matrix的英文发音
例句
- The regulatory networks were constructed by scanning the ChIP-peak region with TF specific position weight matrix ( PWM ).
- 我们通过用TF特异性位点权重矩阵(PWM)扫描CHIP峰的区域来构建转录调控网络。
- Based on the position weight matrix ( PWM ) and length distribution of open reading frame ( ORF ), a simple method for predicting translation initiation sites is presented. It can identify TIS from upstream AUGs easily.
- 结合位置权重矩阵(PWM)(PWM,positionweightmatrix)和开放阅读框架(ORF,Openreadingframe)的长度分布特征建立了简单的方法识别翻译起始位点,此方法能很好地区分上游AUG和TIS。
- We also can know : the emit probability of the background model, the position weight matrix of the motif, motif density, initial distribution, state space, state transition matrix.
- 我们还可以得到:背景序列的发射概率,Motif的位置权重矩阵(PWM),初始分布,状态转移矩阵,状态空间。
- Potential features of the sequence are selected by searching the diversity of position weight matrix, and they are trained and predicted by calling the boosting algorithm of the Open Source Computer Vision Library.
- 通过检索序列的差异位置权重矩阵(PWM)来寻找序列的特征,并调用开源计算机视觉库的Boosting算法来训练和测试的。
- Methods : By constructing position weight matrix and calculating the site conservative index vectors Mi in transcription factor binding sites, a novel position weight matrix scoring algorithm ( PWMSA ) for predicting yeast transcription factor binding sites is presented.
- 方法:构建转录因子结合位点位置权重矩阵(PWM),以转录因子结合位点每一位置的碱基保守性指数Mi为参量,利用位置权重打分函数算法(PWMSA)对酵母五种转录因子结合位点进行预测。
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