What is information to one person can simply be useless data to another.

对另一个人来说是信息，但对另一人则可能是无用的数据。

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More importantly, I talked about three techniques used in data mining that can turn your confusing and useless data into meaningful rules and trends.

而且更重要的是，在这两个部分中我谈及了数据挖掘中常用的三种技术，它们可以将难以理解的无用数据转变为有意义的规则和趋势。

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A daily overload of information often makes us think our memory is declining and we have memory loss when in fact it's simply glutted with too much useless data.

平常超负荷的信息往往使我们感觉记忆力在衰退，而有太多信息的时候我们的记忆就开始丧失了。

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One was to eliminate useless data to focus security on vital company information, he said.

BBC: State-backed data spies hunt industrial secrets

Georgia's attackers employed "botnets, " or malicious automated programs that take root undetected in far-flung computers and barrage their targets with useless data.

CNN: U.S. at risk of cyberattacks, experts say

The devices may overload busy doctors with reams of useless data.

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