Strategies for improving the quality of community detection based on modularity optimization

Tedy Setiadi, Mohd Ridzwan Yaakub, Azuraliza Abu Bakar
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Abstract

Community detection is a field of interest in social networks. Many new methods have emerged for community detection solution, however the modularity optimization method is the most prominent. Community detection based on modularity optimization (CDMO) has fundamental problems in the form of solution degeneration and resolution limits. From the two problems, the resolution limit is more concerned because it affects the resulting community's quality. During the last decade, many studies have attempted to address the problems, but so far they have been carried out partially, no one has thoroughly discussed efforts to improve the quality of CDMO. In this paper, we aim to investigate works in handling resolution limit and improving the quality of CDMO, along with their strengths and limitations. We derive six categories of strategies to improve the quality of CDMO, namely developing multi-resolution modularity, creating local modularity, creating modularity density, creating new metrics as an alternative to modularity, creating new quality metrics as a substitute for modularity, involving node attributes in determining community detection, and extending the single objective function into a multi-objective function. These strategies can be used as a guide in developing community detection methods. By considering network size, network type, and community distribution, we can choose the appropriate strategy in improving the quality of community detection.
基于模块化优化的群落检测质量改进策略
社群检测是社交网络中一个备受关注的领域。社区检测解决方案出现了许多新方法,但模块化优化方法最为突出。基于模块化优化的社群检测(CDMO)存在解退化和分辨率限制两个基本问题。在这两个问题中,分辨率限制更受关注,因为它会影响所得到的群落质量。近十年来,许多研究都试图解决这些问题,但迄今为止,这些研究都是局部性的,没有人深入探讨过如何提高 CDMO 的质量。本文旨在研究处理分辨率限制和提高 CDMO 质量的工作及其优势和局限性。我们得出了六类提高 CDMO 质量的策略,即发展多分辨率模块化、创建局部模块化、创建模块化密度、创建新指标作为模块化的替代、创建新质量指标作为模块化的替代、让节点属性参与确定群落检测,以及将单一目标函数扩展为多目标函数。这些策略可作为开发社群检测方法的指南。通过考虑网络规模、网络类型和社群分布,我们可以选择合适的策略来提高社群检测的质量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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