通过多分辨率增强和动量输出队列进行多对比度图像聚类

IF 5.5 2区 计算机科学 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE
Sheng Jin, Shuisheng Zhou, Dezheng Kong, Banghe Han
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引用次数: 0

摘要

对比聚类利用配对样本之间的相互作用和深度网络架构的学习能力,已成为深度聚类领域的一种有效技术。然而,现有方法采用的增强策略并不能充分利用图像信息,再加上负样本数量的限制,使得聚类性能大打折扣。在本研究中,我们提出了一种结合动量输出队列和多分辨率增强策略的新型聚类方法,以有效解决这些局限性。首先,我们部署了一种多分辨率增强策略,将传统的增强转化为不同分辨率的全局和局部视角。这种方法可全面利用图像间信息,构建具有多视角输入的多对比度模型。随后,我们引入了动量输出队列,旨在存储大量负样本而不增加计算成本,从而增强聚类效果。在我们的联合优化框架内,样本特征来自于原始编码器和动量编码器,用于实例级对比学习。与此同时,同一批次中完全由原始编码器生成的特征被用于集群级对比学习。我们在五个具有挑战性的数据集上的实验结果证明,我们的方法比现有的最先进技术性能更优越。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Multi-contrast image clustering via multi-resolution augmentation and momentum-output queues
Contrastive clustering has emerged as an efficacious technique in the domain of deep clustering, leveraging the interplay between paired samples and the learning capabilities of deep network architectures. However, the augmentation strategies employed in the existing methods do not fully utilize the information of images, coupled with the limitation of the number of negative samples makes the clustering performance suffer. In this study, we propose a novel clustering approach that incorporates momentum-output queues and multi-resolution augmentation strategies to effectively address these limitations. Initially, we deploy a multi-resolution augmentation strategy, transforming conventional augmentations into distinct global and local perspectives across various resolutions. This approach comprehensively harnesses inter-image information to construct a multi-contrast model with multi-view inputs. Subsequently, we introduce momentum-output queues, which are designed to store a large number of negative samples without increasing the computational cost, thereby enhancing the clustering effect. Within our joint optimization framework, sample features are derived from both the original and momentum encoders for instance-level contrastive learning. Simultaneously, features produced exclusively by the original encoder within the same batch are employed for cluster-level contrastive learning. Our experimental results on five challenging datasets substantiate the superior performance of our method over existing state-of-the-art techniques.
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来源期刊
Neurocomputing
Neurocomputing 工程技术-计算机:人工智能
CiteScore
13.10
自引率
10.00%
发文量
1382
审稿时长
70 days
期刊介绍: Neurocomputing publishes articles describing recent fundamental contributions in the field of neurocomputing. Neurocomputing theory, practice and applications are the essential topics being covered.
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