Blog communities represent an aggregation of individual blogs giving readers an overview of the breadth and depth of content and knowledge within a group.

博客社区是众多个体博客的一个集合，它让读者在该群体中获得更宽广的知识视野。

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However, many Activity Streams-compatible tools might not have any knowledge of these terms, which can cause problems during aggregation.

然而，许多兼容activity Streams的工具可能还不知道有这些概念，这可能会在聚合时造成问题。

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The problem that deficiency of field knowledge leading to a great deal of irrelevant rules is solved by applying aggregation emerging patterns classification.

通过采用聚集显露模式分类，克服了因领域知识不足而导致的大量不相关规则的问题。

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Shirky looks at online collaboration and knowledge aggregation among strangers, in the creation of everything from collections of embarrassing photos to documented human rights abuses, as the birth of a new sociopolitical force in the world.

FORBES: Commentary