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Algorithm Research & Explore
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App. Res. of Comp. Printed Article
Vol. 38, 2021 No. 9
2732-2736

Efficient intersection algorithm based on k-ary search tree

Wang Jue1
Bao Shiqi2
Song Xingshen3
1. Dept. of Information & Communication, Officers College of PAP, Chengdu 610213, China
2. Chengdu Bear Rescue Centre, Chengdu 610500, China
3. Academy for Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410000, China
DOI: 10.19734/j.issn.1001-3695.2020.12.0548

Abstract

K-ary search tree is a promising structure due to its friendliness to cache awareness and SIMD acceleration. Recent years have witnessed its successful application to inverted index for efficient query processing and index compression. However, its query processing methods are either complicated or rudimentary, and its adoption is limited in membership test, which both impair its application in real life. This paper studied the intersection algorithm for k-ary search tree, and introduced two early termination techniques collaborating with particular traversal methods to improve its intersection efficiency. The experimental analyses validated the proposed optimizations could greatly improve the query speed, and the optimized k-ary search tree suits better for long inverted lists, and when equipped with larger SIMD registers, it is able to beat the state-of-the-art sorted-array based intersection algorithms.

Publish Information

DOI: 10.19734/j.issn.1001-3695.2020.12.0548
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 9
Section: Algorithm Research & Explore
Pages: 2732-2736
Serial Number: 1001-3695(2021)09-031-2732-05

Publish History

[2021-09-05] Printed Article

Cite This Article

王珏, 包诗琦, 宋省身. 一种k-ary搜索树的快速求交算法 [J]. 计算机应用研究, 2021, 38 (9): 2732-2736. (Wang Jue, Bao Shiqi, Song Xingshen. Efficient intersection algorithm based on k-ary search tree [J]. Application Research of Computers, 2021, 38 (9): 2732-2736. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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