− 6.
(b) Suppose we are to compute an iceberg cube from the above. If the minimum support count in the
iceberg condition is two, how many aggregate cells will there be in the iceberg cube? Show the cells.
They are 4: {(a1, a2, ∗, . . . , ∗), (a1, ∗, ∗, . . . , ∗), (∗, a2, ∗, . . . , ∗), (∗, ∗, ∗, . . . , ∗)}.
− 6。(b) 假定我们在计算从上述冰山多维数据集。如果最低支持计数冰山的条件是两个,合计有多少单元格会有冰山多维数据集?显示单元格。They are 4: {(a1, a2, ∗, . . . , ∗), (a1, ∗, ∗, . . . , ∗), (∗, a2, ∗, . . . , ∗), (∗, ∗, ∗, . . . , ∗)}.
正在翻譯中..