arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2407.20119cs.LGcs.AI
收藏

面向未知簇数量的非结构化数据的自适应自监督鲁棒聚类

Adaptive Self-supervised Robust Clustering for Unstructured Data with Unknown Cluster Number

University of Science and Technology of China(中国科学技术大学);The Hong Kong Polytechnic University(香港理工大学)

Chen-Lu Ding, Jiancan Wu, Wei Lin, Shiyang Shen, Xiang Wang, Yancheng Yuan

AI总结:

提出自适应自监督鲁棒聚类方法ASRC,通过自适应学习图结构和边权重,结合增强图自编码器与对比学习,在未知簇数量下实现非结构化数据的高效聚类,性能优于依赖先验知识的方法。

摘要:

我们提出了一种针对非结构化数据的新型自监督深度聚类方法,无需簇数量的先验知识,称为自适应自监督鲁棒聚类(ASRC)。具体而言,ASRC自适应地学习图结构和边权重,以捕获局部和全局结构信息。所获得的图使我们能够通过结合对比学习技术的增强图自编码器学习聚类友好的特征表示。它进一步利用鲁棒连续聚类(RCC)自适应获取的聚类结果生成负采样原型,这进一步促进正对之间的一致性,并扩大正负样本之间的差距。ASRC通过将RCC应用于所学特征表示及其一致的图结构和边权重,获得最终聚类结果。在七个基准数据集上的大量实验证明了ASRC的有效性,表明其优于其他流行聚类模型的卓越性能。值得注意的是,ASRC甚至优于依赖簇数量先验知识的方法,突显了其在解决非结构化数据聚类挑战方面的有效性。

英文摘要:

We introduce a novel self-supervised deep clustering approach tailored for unstructured data without requiring prior knowledge of the number of clusters, termed Adaptive Self-supervised Robust Clustering (ASRC). In particular, ASRC adaptively learns the graph structure and edge weights to capture both local and global structural information. The obtained graph enables us to learn clustering-friendly feature representations by an enhanced graph auto-encoder with contrastive learning technique. It further leverages the clustering results adaptively obtained by robust continuous clustering (RCC) to generate prototypes for negative sampling, which can further contribute to promoting consistency among positive pairs and enlarging the gap between positive and negative samples. ASRC obtains the final clustering results by applying RCC to the learned feature representations with their consistent graph structure and edge weights. Extensive experiments conducted on seven benchmark datasets demonstrate the efficacy of ASRC, demonstrating its superior performance over other popular clustering models. Notably, ASRC even outperforms methods that rely on prior knowledge of the number of clusters, highlighting its effectiveness in addressing the challenges of clustering unstructured data.

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。

↑