“向前-向后算法”的概念、定义、翻译、参考文献-科学参考

单词	向前-向后算法
释义	向前-向后算法 Encyclopedia 文学计算语言学释 forward-backward algorithm向前-向后算法从隐马尔可夫模型的参数λ= (A,B)的某个初始估计开始（λ是模型参数；A是转移概率；B是发射概率），迭代地运行期望化和最大化两个步骤，向前向后不断地重估A和B的概率，对于给定观察序列O和隐马尔可夫模型中可能状态的集合，自动地训练隐马尔可夫模型的参数A和B，这样的算法叫作向前-向后算法。又称鲍姆-韦尔奇算法（Baum-Welch algorithm）。
随便看	remote sensing analysis remote sensing and environmental analysis information system remote sensing anomaly remote sensing application remote sensing archaeology remote sensing balloon remote sensing data acquisition remote sensing data assimilation remote sensing database software remote sensing data preprocessing remote sensing data processing remote sensing data sources in forestry remote sensing for atmospheric pollution remote sensing for environmental engineering remote sensing for surveying and mapping remote sensing Fourier transform infrared spectrometry remote sensing geological application remote sensing geological database remote sensing geological interpretation map remote sensing geological report remote sensing geological survey remote sensing geology remote sensing geometry remote sensing hydrology remote sensing image

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