The following version of the previous chart omits the two slowest data retrieval methods for ease of comparison between the other methods.

为了更方便的比较其它方法，下面的图去掉了上一个图中数据检索最慢的两个方法。

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Afterwards, introduces the involved essential technology in the realization of retrieval sub system, including the patterns and methods to gather and train the collaborative data.

随后，介绍了检索子系统实现中涉及的关键技术，包括对协作数据信息进行采集和训练的模式和方法。

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This chapter discusses methods of data retrieval from an interaction standpoint and presents some human-centered approaches to the problem of finding useful information.

在这一章中，我们将从交互的角度讨论数据检索的方法，提出一些以人为中心的方法来处理如何发现有用信息的问题。

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