另外，系统提取的用户行为特征有时候也不能正确地反映用户的实际行为特征。

Moreover, sometimes the extraction of the user's behavior data can't reflect the real characteristics of the user operation, too.

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自从用户可以用手机或其他移动终端上网开始，针对移动互联网的概念，用户行为特征的研究就开始逐渐增多。

With the more and more people using mobile phone or other movable devices to log on to internet, there are more and more literacy about the concept and the consumer behavior about mobile internet.

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目前国内外网络舆情的研究主要体现在两个方面：一是理论方面的研究，包括政策、机制、用户行为特征、网络舆情传播模式的研究；

The research of network public opinion at home and abroad mainly is in two areas: one is the theory research, including policy, mechanism, the user behavior characteristic, network transmission mode;

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