Markov Chain is suitable for short-term forecast of great capacity sample data sequence, but gray system forecast method is suitable for medium-term forecast of few capacity sample data sequence.

马尔柯夫链适用于大样本数据序列的短期预测，而灰色系统预测方法适用于小样本数据的中期预测。

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The important cause that ECMWF medium-term numerical forecast made errors in 1998 is that astronomical tide is not included in the model.

不考虑天文潮汐可能是1998年欧洲中期数值预报产生较大误差的重要原因。

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Hence, Grey forecast Modal has been adopted, appropriate software developed for short-term and medium-term load forecast.

选择灰色预测模型，并开发出相应的软件，可作短期负荷预测和中期负荷预测。

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Therefore, our policy stance must be determined in light of the medium-term forecast for real activity and inflation, as well as the risks to that forecast.

NPR: Economic Swoon to Continue, Bernanke Says

However, the Bank has somewhat reduced its medium-term forecast for consumer spending growth and says that it could turn out to be even lower because household debt has reached a record level in relation to income.

ECONOMIST: The economy