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Fast Density-Based Clustering: Geometric Approach

Published: 30 May 2023 Publication History

Abstract

DBSCAN is a fundamental density-based clustering algorithm with extensive applications. However, a bottleneck of DBSCAN is its O(n2) worst-case time complexity. In this paper, we propose an algorithm called GAP-DBC, which exploits the geometric relationships between points to solve this problem. GAP-DBC introduces an efficient partitioning algorithm to partition the data set with a limited number of range queries and then establishes an initial cluster structure based on the partition. GAP-DBC proceeds to iteratively refine the cluster structure by additional range queries. Finally, the cluster structure is accomplished using an iterative algorithm that utilizes the spatial relationships among points to reduce unnecessary distance calculations. We further demonstrate theoretically that GAP-DBC has an excellent guarantee in terms of computational efficiency. We conducted experiments on both synthetic and real-world data sets to evaluate the performance of GAP-DBC. The results show that our algorithm is competitive with other state-of-the-art algorithms.

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References

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  • (2024)Window Function Expression: Let the Self-Join EnterProceedings of the VLDB Endowment10.14778/3665844.366584817:9(2162-2174)Online publication date: 6-Aug-2024
  • (2024)Proximity Queries on Point Clouds using Rapid Construction Path OracleProceedings of the ACM on Management of Data10.1145/36392612:1(1-26)Online publication date: 26-Mar-2024

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cover image Proceedings of the ACM on Management of Data
Proceedings of the ACM on Management of Data  Volume 1, Issue 1
PACMMOD
May 2023
2807 pages
EISSN:2836-6573
DOI:10.1145/3603164
Issue’s Table of Contents
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Association for Computing Machinery

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Publication History

Published: 30 May 2023
Published in PACMMOD Volume 1, Issue 1

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Author Tags

  1. DBSCAN
  2. algorithm
  3. density-based clustering
  4. geometric approach

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  • Academic Exchange Program for Doctoral Students Abroad of Southwestern University of Finance and Economics

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Cited By

View all
  • (2024)Window Function Expression: Let the Self-Join EnterProceedings of the VLDB Endowment10.14778/3665844.366584817:9(2162-2174)Online publication date: 6-Aug-2024
  • (2024)Proximity Queries on Point Clouds using Rapid Construction Path OracleProceedings of the ACM on Management of Data10.1145/36392612:1(1-26)Online publication date: 26-Mar-2024

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