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arXiv 1807.08158cs.LGstat.ML
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基于离散密度模型的线性密度聚类

Linear density-based clustering with a discrete density model

Università degli Studi di Palermo(巴勒莫大学)

Roberto Pirrone, Vincenzo Cannella, Sergio Monteleone, Gabriella Giordano

摘要:

基于密度的聚类技术被广泛应用于数据采掘中。它们最有吸引力的特征之一在于不利用数据集包含的聚类数量及其形状的先验知识。在本文中,我们提出了一个新的算法命名为线性DBSCAN(林DBSCAN),一个简单的方法来聚类的启发与著名的算法DBSCAN密度模型。Lin-DBSCAN旨在最大限度地减少基于地理空间数据的密度聚类的计算成本,其线性时间复杂度使其适用于低资源设备上的实时应用。Lin-DBSCAN使用DBSCAN的密度模型的离散版本,其利用基于网格的扫描和合并方法。该算法的名称完全源于上面概述的其主要特征。该算法进行了测试与众所周知的数据集。实验结果证明了DBSCAN在空间数据聚类方面的有效性和有效性,使得基于密度的聚类技术能够在大数据集上以较低的计算成本使用。

英文摘要:

Density-based clustering techniques are used in a wide range of data mining applications. One of their most attractive features con- sists in not making use of prior knowledge of the number of clusters that a dataset contains along with their shape. In this paper we propose a new algorithm named Linear DBSCAN (Lin-DBSCAN), a simple approach to clustering inspired by the density model introduced with the well known algorithm DBSCAN. Designed to minimize the computational cost of density based clustering on geospatial data, Lin-DBSCAN features a linear time complexity that makes it suitable for real-time applications on low-resource devices. Lin-DBSCAN uses a discrete version of the density model of DBSCAN that takes ad- vantage of a grid-based scan and merge approach. The name of the algorithm stems exactly from its main features outlined above. The algorithm was tested with well known data sets. Experimental results prove the efficiency and the validity of this approach over DBSCAN in the context of spatial data clustering, enabling the use of a density-based clustering technique on large datasets with low computational cost.

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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