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arXiv 1702.01159cs.IR
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Delicious在网络档案时态检索中的适用性研究

On the Applicability of Delicious for Temporal Search on Web Archives

Helge Holzmann, Wolfgang Nejdl, Avishek Anand

摘要:

Web档案是存储过去的网页的大型纵向集合,这些网页可能在当前的实时Web上丢失。因此,对这些集合的时间搜索对于寻找突出的缺失网页和历史分析等任务至关重要。然而,这一直是具有挑战性的,由于缺乏流行的信息和适当的地面真相,以评估时间检索模型。在本文中,我们调查的适用性外部纵向资源,以确定重要的和流行的网站在过去和分析的社会书签服务美味。Delicious上带有时间戳的书签提供了关于过去流行时间段的明确线索以及相关描述符。对于给定的时态查询,这些对于识别过去的重要文档是有价值的。纯粹关注召回,我们分析了超过12,000个查询,发现使用Delicious产生的平均召回值从46%到100%,当我们将自己限制在考虑的数据集中最好的代表查询时。这构成了一个有吸引力的和低开销的方法,快速访问到Web档案,而不处理实际的内容。

英文摘要:

Web archives are large longitudinal collections that store webpages from the past, which might be missing on the current live Web. Consequently, temporal search over such collections is essential for finding prominent missing webpages and tasks like historical analysis. However, this has been challenging due to the lack of popularity information and proper ground truth to evaluate temporal retrieval models. In this paper we investigate the applicability of external longitudinal resources to identify important and popular websites in the past and analyze the social bookmarking service Delicious for this purpose. The timestamped bookmarks on Delicious provide explicit cues about popular time periods in the past along with relevant descriptors. These are valuable to identify important documents in the past for a given temporal query. Focusing purely on recall, we analyzed more than 12,000 queries and find that using Delicious yields average recall values from 46% up to 100%, when limiting ourselves to the best represented queries in the considered dataset. This constitutes an attractive and low-overhead approach for quick access into Web archives by not dealing with the actual contents.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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