...理-中国图情期刊联盟网 关键词】： FRBR 馆藏元数据 关联网络 网络结构 [gap=1202]Key words】：FRBR; collection metadata; linked network; network structure ...
基于4个网页-相关网页
Collection-level metadata 获取级元数据
Collection Description Metadata 资源集合描述元数据
snapshot-based metadata collection 基于快照的元数据收集
The downside is that it's log structured, and garbage collection is needed to clean up old data and metadata.
而缺点在于，它是日志结构的，所以需要垃圾收集，以便清理旧的数据和元数据。
Metrics in particular need metadata to provide context, in other words, when it was collected, how it was collection, how it changes value.
特别的是，规格必须需要元数据来提供上下文，换句话说就是当收集元数据时，如何来收集以及如何来改变数值。
As examples of documents that have extensive metadata associated with them, let's use the WITS document collection.
我们使用了WITS文档集合作为包含大量相关元数据的文档示例。
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