By contrast, free software users come to have both the system knowledge and the software selection to experiment.

相反，自由软件用户既有系统知识也有软件选择体验。

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My selection for this experiment was the 40-hour TiVo.

对于这个实验，我的选择是40小时的TiVo。

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Several feature selection methods were analyzed. An improved mutual information algorithm was proposed. The experiment results showed that improved mutual information algorithm was feasible.

分析了常用的几种特征选取方法，提出了改进互信息算法。实验结果显示改进的互信息算法是可行的。

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Marc Lievremont's reign in charge of Les Bleus, which began with a 27-6 win at Murrayfield two years ago, has been characterised by his willingness to experiment with his team selection.

BBC: Scotland 9-18 France