Comments (3)
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CM Sketch中计数器数组的列数是哈希函数h_i的值域的维数而不是数据流中不同元素的个数
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我最后算出来是这样的
我可能前面表达不清,不好意思,我的意思是 上面这张图[H2][3]的位置是1,只有2会被hash到这个位置,并且只hash了一次,所以觉得f2的估值是1
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