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arXiv 2103.13491eess.IVcs.LG
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特征加权非负矩阵分解

Feature Weighted Non-negative Matrix Factorization

Academy of Advanced Interdisciplinary Research, Xidian University(西安电子科技大学先进交叉学科研究院);Center for OPTical Imagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University(西北工业大学光学图像分析与学习中心);Key Laboratory of Intelligent Perception and Image Understanding of Ministry of Education, International Research Center for Intelligent Perception and Computation, Xidian University(西安电子科技大学教育部智能感知与图像理解重点实验室、国际智能感知与计算研究中心)

Mulin Chen, Maoguo Gong, Xuelong Li

摘要:

非负矩阵分解(NMF)是数据表示和聚类的最流行技术之一,在机器学习和数据分析中得到了广泛的应用。非负矩阵分解将样本的特征集中到一个向量中,通过基向量的线性组合来逼近,从而实现了样本的低维表示。然而,在实际应用中,这些特征通常具有不同的重要性。为了充分利用鉴别特征,一些方法通过变换矩阵将样本投影到子空间中,这会干扰原始特征属性,忽略样本的多样性。为了解决上述问题,本文提出了特征加权非负矩阵分解(FNMF)。FNMF的突出特性可以概括为三个方面:1)它根据特征的重要性自适应地学习特征的权重; 2)它利用多个特征加权分量来保持多样性; 3)它可以用建议的优化算法有效地求解。在合成数据集和真实数据集上的性能表明,所提出的方法获得了最先进的性能。

英文摘要:

Non-negative Matrix Factorization (NMF) is one of the most popular techniques for data representation and clustering, and has been widely used in machine learning and data analysis. NMF concentrates the features of each sample into a vector, and approximates it by the linear combination of basis vectors, such that the low-dimensional representations are achieved. However, in real-world applications, the features are usually with different importances. To exploit the discriminative features, some methods project the samples into the subspace with a transformation matrix, which disturbs the original feature attributes and neglects the diversity of samples. To alleviate the above problems, we propose the Feature weighted Non-negative Matrix Factorization (FNMF) in this paper. The salient properties of FNMF can be summarized as threefold: 1) it learns the weights of features adaptively according to their importances; 2) it utilizes multiple feature weighting components to preserve the diversity; 3) it can be solved efficiently with the suggested optimization algorithm. Performance on synthetic and real-world datasets demonstrate that the proposed method obtains the state-of-the-art performance.

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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