Knowledge need is described with business process and user profile.

提出了用户知识需求处理算法和学习算法。

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You also need to have good knowledge of user experience design.

第二，熟悉用户体验设计（UX）。

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You also need to have good knowledge of user experience design.

第二，熟悉用户体验设计（UX）。

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