Like scientists, they observe the behavior of complex systems, form hypotheses, and test predictions.

像科学家一样，他们观察复杂系统的行为，形成假设，并对其进行检验。

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Like scientists, they observe the behavior of complex systems, form hypotheses, and test predictions.

像自然科学家一样观察复杂系统的行为模式，建立猜想，测试预估的结果。

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For both Track1 and Track2, you will be required to upload one file, which includes the predictions for the respective test set.

Track1和Track1，你需要上传一个包含了个字测试集预测结果的文件。

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And test predictions are based on studies of small, mainly white, American populations.

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And though, being an economist, he could not help muttering about the imperfection of societies and systems and the absurdity of predictions and though, being an inveterate puncturer of himself, he would demand a paternity test if anyone called him the father of the deregulated world his adventures with airlines led on to the freeing of the trucking, telecoms and power industries, and heralded the Thatcherite and Reaganite revolutions.

ECONOMIST: Alfred Kahn, deregulator, died on December 27th, aged 93