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Building and querying semantic layers for web archives (extended version)

机译:构建和查询Web Archives的语义图层(扩展版)

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摘要

Web archiving is the process of collecting portions of the Web to ensure that the information is preserved for future exploitation. However, despite the increasing number of web archives worldwide, the absence of efficient and meaningful exploration methods still remains a major hurdle in the way of turning them into a usable and useful information source. In this paper, we focus on this problem and propose an RDF/S model and a distributed framework for building semantic profiles ("layers") that describe semantic information about the contents of web archives. A semantic layer allows describing metadata information about the archived documents, annotating them with useful semantic information (like entities, concepts, and events), and publishing all these data on the Web as Linked Data. Such structured repositories offer advanced query and integration capabilities, and make web archives directly exploitable by other systems and tools. To demonstrate their query capabilities, we build and query semantic layers for three different types of web archives. An experimental evaluation showed that a semantic layer can answer information needs that existing keyword-based systems are not able to sufficiently satisfy.
机译:Web归档是收集Web部分的过程,以确保将信息保留以备将来的剥削。但是,尽管全球网络档案数量越来越多,但缺乏有效和有意义的勘探方法仍然是将它们转化为可用和有用的信息来源的主要障碍。在本文中,我们专注于这个问题,提出了一个RDF / S模型和用于构建语义简档的分布式框架(“层”),它描述了关于Web档案内容的语义信息。语义图层允许描述有关存档文档的元数据信息,用有用的语义信息(如实体,概念和事件),并将Web上的所有这些数据发布为链接数据。这种结构化存储库提供高级查询和集成功能,并将其他系统和工具直接利用Web Archives。为了演示他们的查询功能,我们为三种不同类型的Web档案构建和查询语义图层。实验评估表明,语义层可以回答信息的需要,即现有的基于关键字的系统无法充分满足。

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