The running time of K-means overly depends on the initial points but the right value of k is unknown and selecting the initial points effectively is also difficult.
均值聚类算法的执行时间过度依赖于初始点的选取，但是在实际问题中并不知道k的取值和怎样才能有效地选取初始点。
It is important to start each data area with an initial value which is unknown.
重要的是每一个数据区开始初步价值不详。
It is important to start each data area with an initial value which is unknown.
重要的是每一个数据区开始初步价值不详。
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