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Algorithm Research & Explore
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App. Res. of Comp. Printed Article
Vol. 40, 2023 No. 1
198-203,208

User-sensitive top-k dominating query method based on upper bound pruning

Xu Chaoa,b
Wu Danqia,b
Chen Yonga,b
Lei Jintaoa,b
a. School of Information Engineering, b. Institute of Audit Science & Technology, Nanjing Audit University, Nanjing 211815, China
DOI: 10.19734/j.issn.1001-3695.2022.04.0232

Abstract

With the rapid growth of data volume in the information society, the integrity and value density of data are getting lower and lower, but people's personalized needs are becoming more and more obvious. How to quickly find valuable data from massive incomplete data for users' personalized recommendation has became a hot spot of research. Combined with the upper bound pruning algorithm, this paper proposed a user-sensitive top-k dominating(TKD) query method(USTD). Firstly, combined with user's interests, the method redefined the dominance relationship and its measurement method of objects on incomplete datasets, and calculate the weight dominance grade of the object. Then, it proved the condition of pruning according to the upper bound value by using the redefined dominance relationship. Finally, it integrated the upper bound pruning condition into the query process of USTD to quickly find the first k data satisfying users' interests from the dataset. The experimental results show that the USTD algorithm has a certain improvement in query speed and a significant advantage in the scoring of query results.

Foundation Support

国家自然科学基金资助项目(71972102)
教育部人文社会科学研究规划基金资助项目(19YJAZH100)
江苏省高等学校自然科学研究重大项目(20KJA520002)
江苏省高校优秀科技创新团队(2021)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2022.04.0232
Publish at: Application Research of Computers Printed Article, Vol. 40, 2023 No. 1
Section: Algorithm Research & Explore
Pages: 198-203,208
Serial Number: 1001-3695(2023)01-032-0198-06

Publish History

[2022-08-02] Accepted Paper
[2023-01-05] Printed Article

Cite This Article

徐超, 吴丹琪, 陈勇, 等. 一种基于上界值剪枝的用户敏感top-k dominating查询方法 [J]. 计算机应用研究, 2023, 40 (1): 198-203,208. (Xu Chao, Wu Danqi, Chen Yong, et al. User-sensitive top-k dominating query method based on upper bound pruning [J]. Application Research of Computers, 2023, 40 (1): 198-203,208. )

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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