arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1506.04867cs.DS
收藏

一种高效的层次索引反向k近邻算法

Efficient Reverse k Nearest Neighbor evaluation for hierarchical index

Siddharth Dawar, Vikram Goyal, Debajyoti Bera

摘要:

“反向最近邻”查询在决策支持系统,基于配置文件的营销,紧急服务等应用程序在本文中,我们指出了一些缺陷的分支和边界算法提出了计算单色RkNN查询存储在层次索引中的数据点。我们给出了合适的反例来验证我们的主张,并提出了相应问题的正确算法。我们表明,我们的算法是正确的,通过确定这个问题的算法的正确性背后的必要条件。

英文摘要:

"Reverse Nearest Neighbor" query finds applications in decision support systems, profile-based marketing, emergency services etc. In this paper, we point out a few flaws in the branch and bound algorithms proposed earlier for computing monochromatic RkNN queries over data points stored in hierarchical index. We give suitable counter examples to validate our claims and propose a correct algorithm for the corresponding problem. We show that our algorithm is correct by identifying necessary conditions behind correctness of algorithms for this problem.

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。

↑