When most of us get a text message on our cell phone from an unknown person, we usually say "sorry, wrong number!"
当我们收到陌生人的短信时,我们通常会说：“对不起, 你发错了！”
This is impossible when the component is reading data from a database because in this case, the number of items in the shopping cart is unknown before it's read.
当组件正在从数据库中读取数据时这是不可能的，因为在本例中，购物车中的条目数量在读取前是未知的。
A couple of hours after I left the comment, I got a text message from an unknown number.
我评价过后几个小时，收到了一个陌生号码的信息。
You know the truth of this uncertainty, because there are always a number of unknown variables affecting the consistency of the deck that each new hand is drawn from.
你知道不确定这个事实，因为不同的牌局总是有大量未知的变数在影响持续一致性。
It is good at excavating those hidden, unknown but potentially useful information and knowledge from a large number of real and noisy application data.
它善于从大量的、带有噪声的实际应用数据中，去发掘那些隐藏在数据背后的、未知且潜在有用的信息和知识。
It tries to extract the dependency rule from a finite number of examples, with the ultimate aim of predicting the future unknown samples as accurate as possible.
它利用有限数量的观测来寻求待求的依赖关系，目标是在未来样本上的预测越准确越好。
It tries to extract the dependency rule from a finite number of examples, with the ultimate aim of predicting the future unknown samples as accurate as possible.
它利用有限数量的观测来寻求待求的依赖关系，目标是在未来样本上的预测越准确越好。
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