K means algorithm applied in vector quantization strongly depends on the selection of the initial codebook, and if not given a good initial codebook it can easily be trapped in local minima.

• 由于传统的 K-均值算法在用于矢量量化时强烈依赖初始码书的选取 ,如果初始码书选取不好 ,则很容易陷入局部最小点 ;