HMMs, described by a vector and two matrices ( ,A,B) are of great value in describing real systems since, although usually only an approximation, they are amenable to analysis.

• 由一个向量和两个矩阵所描述，在描述现实系统的时候有着巨大的价值，因为即使常常仅是一个近似，但是他们是经得起分析的。