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arXiv 2210.09640cs.LGcs.DS
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分类数据聚类:软舍入k-modes

Clustering Categorical Data: Soft Rounding k-modes

Rutgers University(罗格斯大学)

Surya Teja Gavva, Karthik C. S., Sharath Punna

AI总结:

针对经典k-modes算法在自然生成块模型中较大参数范围表现不佳的问题,提出软舍入变体SoftModes,理论证明其弥补原算法缺陷,实验验证其在合成与真实数据集上表现优异。

摘要:

在过去三十年里,研究人员针对分类数据分析深入探索了各类聚类工具。尽管已有多种聚类算法被提出,经典的k-modes算法仍是分类数据无监督学习的常用选择。令人意外的是,我们的首个发现是:在一个自然生成的块模型中,k-modes算法在很大参数范围内表现不佳。我们通过提出k-modes算法的软舍入变体SoftModes来解决这一问题,并从理论上证明该变体可弥补k-modes算法在生成模型中的缺陷。最后,我们通过实验验证了SoftModes在合成数据集和真实数据集上均表现优异。

英文摘要:

Over the last three decades, researchers have intensively explored various clustering tools for categorical data analysis. Despite the proposal of various clustering algorithms, the classical k-modes algorithm remains a popular choice for unsupervised learning of categorical data. Surprisingly, our first insight is that in a natural generative block model, the k-modes algorithm performs poorly for a large range of parameters. We remedy this issue by proposing a soft rounding variant of the k-modes algorithm (SoftModes) and theoretically prove that our variant addresses the drawbacks of the k-modes algorithm in the generative model. Finally, we empirically verify that SoftModes performs well on both synthetic and real-world datasets.

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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