Data mining in incomplete information system is a hard problem but inevitable in uncertain decision.
不完备信息下的数据挖掘是一个难题，但它在实际决策中是不可避免的。
The internal supervisory system of the companies of our country is quite incomplete at present.
目前我国公司内部监督体系很不完善。
The internal supervisory system of the companies of our country is quite incomplete at present.
目前我国公司内部监督体系很不完善。
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