According to contrast index curve model and hyperbolic model results, the power of multi- Item type prediction accuracy is higher than the latter two.

对比指数曲线模型和双曲线模型的结果可知，幂多项式模型的预测精度均高于后两者。

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In contrast, index futures have played an active role in maintaining the stability of the spot market, and a certain correction function on the over - reaction with spot market.

相反，股指期货为现货市场稳定发挥了积极的促进作用，对现货市场的过度反应起到了一定修正功能。

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Obama's index, in contrast, stayed high through early October and climbed further following the Oct. 7 debate.

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By contrast, with a traditional index mutual fund, "you're always buying at the net asset value, " Mr. Goldie notes.

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By contrast, the Mountain Region Index is currently 9.5 percentage points below its January 2007 level, and was down 16.5 percentage points at its nadir.

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