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arXiv 1504.06804cs.DS
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整数和字符串的高速散列

High Speed Hashing for Integers and Strings

Mikkel Thorup

摘要:

这些注释描述了目前已知的用于散列整数和字符串的最有效的散列函数。这些现代哈希函数通常比标准教科书中的哈希函数快一个数量级。它们也更容易实现,因此在实践中明显获胜,但它们的分析更难。一些最实用的哈希函数只出现在理论论文中,其中一些需要结合不同理论论文的结果。这里的目标是将理论家和实践者都可以使用的讲座式笔记中的信息结合起来,从而使这些理论的实践成果更广泛地获得。

英文摘要:

These notes describe the most efficient hash functions currently known for hashing integers and strings. These modern hash functions are often an order of magnitude faster than those presented in standard text books. They are also simpler to implement, and hence a clear win in practice, but their analysis is harder. Some of the most practical hash functions have only appeared in theory papers, and some of them requires combining results from different theory papers. The goal here is to combine the information in lecture-style notes that can be used by theoreticians and practitioners alike, thus making these practical fruits of theory more widely accessible.

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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