阈值查询

A. Bonifati, Stefania Dumbrava, G. Fletcher, J. Hidders, Matthias Hofer, W. Martens, Filip Murlak, Joshua Shinavier, S. Staworko, Dominik Tomaszuk
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引用次数: 0

摘要

阈值查询是一类重要的查询,它只需要计算或计数直至指定阈值的答案。据我们所知,阈值查询在研究文献中很大程度上被忽视了,考虑到它们在实践中是多么普遍,这是令人惊讶的。我们探索了这种查询在实践中是如何出现的,并提出了一种方法,可用于显着改善其最先进的评估算法的渐近边界。我们对这些方法的实验评估显示了数量级的性能改进。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Threshold Queries
Threshold queries are an important class of queries that only require computing or counting answers up to a specified threshold value. To the best of our knowledge, threshold queries have been largely disregarded in the research literature, which is surprising considering how common they are in practice. We explore how such queries appear in practice and present a method that can be used to significantly improve the asymptotic bounds of their state-of-the-art evaluation algorithms. Our experimental evaluation of these methods shows order-of-magnitude performance improvements.
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