A machine learning method for locally missing multi-view clustering based on matrix-guided regularization

A machine learning and multi-view technology, applied in the field of computer vision and pattern recognition, can solve problems such as ineffective use of kernel matrix, high kernel redundancy, and affecting clustering performance, so as to avoid unreliable similarity evaluation , Reduce high redundancy, good clustering effect

Active Publication Date: 2019-01-15
聚时科技(上海)有限公司
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Problems solved by technology

However, the above methods still have the following deficiencies: 1) Forcibly force closer and farther sample pairs to be equal to the same ideal similarity, and inappropriately ignore the variation of samples in the same category; 2) The multi-kernel matrix is ​​not fully considered , which may lead to high redundancy and low diversity in the chosen kernel
These two factors make these predefined kernel matrices not effectively utilized, which in turn adversely affects the clustering performance

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  • A machine learning method for locally missing multi-view clustering based on matrix-guided regularization
  • A machine learning method for locally missing multi-view clustering based on matrix-guided regularization
  • A machine learning method for locally missing multi-view clustering based on matrix-guided regularization

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Embodiment Construction

[0046] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0047] 1. Multi-core k-means algorithm (MKKM)

[0048] Represents a collection of n samples, Indicates that the pth feature is matched by x to a regenerated kernel Hilbert space In a multi-core configuration, each sample has multiple feature representations, which are represented by a set of feature maps Defined. Specifically, each sample is denoted as φ β (x)=[β 1 φ 1 (x) T ,...,β m φ m (x) T ] T , where β=[β 1 ,...,β m ] T , representing the coefficients of the m base kernels. These coefficients will be optimized during the learning process. Based on the definit...

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Abstract

The invention relates to a machine learning method for locally missing multi-view clustering based on matrix-guided regularization.The method fuses filling and clustering, fills missing kernel under the guidance of clustering, clusters with filled kernel, and introduces matrix-guided regularization when filling missing kernel. The method comprises the following steps: 1) obtaining target data samples and clustering target numbers, mapping the target data samples to multi-kernel space; 2) introducing matrix-guided regularization to establish regularized locally missing multi-kernel k-means clustering optimization objective function; 3) solving the regularized locally missing multi-kernel k-means clustering optimization objective function in a cyclic manner to realize clustering. Compared with the prior art, the present invention has the advantages of good clustering effect, low calculation amount and the like.

Description

technical field [0001] The invention belongs to the technical field of computer vision and pattern recognition, and relates to a multi-view clustering method, in particular to a local missing multi-view clustering machine learning method based on matrix-guided regularization. Background technique [0002] Multi-view clustering (MKC), which aims to optimally combine a set of pre-specified basic views for clustering, has been intensively studied in the past decades. For example, the pioneering work of "Multiple kernel clustering" (B.Zhao, J.T.Kwok, and C.Zhang, in SDM, 2009, pp.638–649) proposed a multi-kernel clustering algorithm that can maximize the optimization of hyperplane The maximum margin, the best cluster labels and the best kernel for . In the literature "Optimized data fusion for kernel k-means clustering" (S. Yu, L.-C. Tranchevent, X. Liu, W. J.A.K.Suykens, B.D.Moor, and Y.Moreau, IEEE TPAMI, vol.34, no.5, pp.1031–1039, 2012) proposed a novel optimized kernel k...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
CPCG06F18/23213
Inventor 郑军刘新旺
Owner 聚时科技(上海)有限公司
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