通过主成分分析法，确定出大学生时间管理倾向的四个构成维度，分别为时间效能感、时间价值感、利用时间的主动性和时间管理策略。

By using principle factor analysis, four dimensions were identified. They are the sense of time efficacy, the sense of time value, initiative in time using and time management strategy.

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在此基础上，采用主成分分析法对“五因素”进行特征提取，降低BP网络的输入维度。

On the above basis, we used principal component analysis of the "five factors" for feature extraction and reduced the input dimension of BP network importation.

youdao

在此基础上，采用主成分分析法对“五因素”进行特征提取，降低BP网络的输入维度。

On the above basis, we used principal component analysis of the "five factors" for feature extraction and reduced the input dimension of BP network importation.

youdao