The classical data mining approaches can only look for patterns in single relation, and it is difficult to look for complex relational patterns which involved in multi-relational databases.
传统的数据挖掘方法只能从单一关系中进行模式发现，而很难在复杂的结构化数据中发现复杂的关系模式。
We know that one single policy cannot solve a problem as complex as this one, but we do look forward to some improvement.
虽然如此复杂的问题不能通过单单一项政策得以解决，我们还 是期待着一些改善。
We know that one single policy cannot solve a problem as complex as this one, but we do look forward to some improvement.
虽然如此复杂的问题不能通过单单一项政策得以解决，我们还 是期待着一些改善。
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