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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1803.02576cs.DS
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事件序列的紧致表示

Compact Representations of Event Sequences

Nieves R. Brisaboa, Guillermo de Bernardo, Gonzalo Navarro, Tirso V. Rodeiro, Diego Seco

摘要:

我们引入了一种新的技术,用于有效管理大序列的多维数据,它利用了在现实世界的数据集出现的查询,并支持不同类型的聚合查询。更重要的是,我们的表示是灵活的,在这个意义上,相关的尺寸和查询可以用来指导建设过程中,很容易提供一个空间-时间的权衡取决于在域中的相关查询。我们提供了两种替代的多维数据序列表示和描述的技术,有效地存储数据集,并在压缩表示进行聚合查询。我们在现实的数据集上进行实验评估,显示我们的建议的空间效率和查询能力。

英文摘要:

We introduce a new technique for the efficient management of large sequences of multidimensional data, which takes advantage of regularities that arise in real-world datasets and supports different types of aggregation queries. More importantly, our representation is flexible in the sense that the relevant dimensions and queries may be used to guide the construction process, easily providing a space-time tradeoff depending on the relevant queries in the domain. We provide two alternative representations for sequences of multidimensional data and describe the techniques to efficiently store the datasets and to perform aggregation queries over the compressed representation. We perform experimental evaluation on realistic datasets, showing the space efficiency and query capabilities of our proposal.

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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