Clustering trajectories as a whole can miss common sub-trajectories. Discovering common sub-trajectories is very useful in many applications, such as weather forecast and traffic control.

将运动轨迹作为整体聚类会丢失相似子轨迹段，而相似子轨迹段在实际应用中用处很大，如天气预报、交通控制等。

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By selecting sub-ensemble with smaller error, the root mean square error of forecast is reduced by over 10%.

采用最优集合子集预报方式时的臭氧预报均方根误差比原确定性预报低了10%以上。

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Several notable Wall Street bears had forecast sub-3 M Lumia volume for 4Q12, so the 4.4 M outcome was a solid performance.

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As soon as the GOP buys into a forecast of permanent, sub-normal economic growth, it is sunk.

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Excluding South Africa and northern Africa, 10 major sub-Saharan Africa cities make up another 12% of the 2016 forecast.

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