
1. 广东工业大学 计算机学院,广东,广州,510006
2. 广东工业大学 自动化学院,广东,广州,510006
Published:2024
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古慧敏, 肖燕珊, 刘波. 基于多核学习的单分类多示例学习算法[J]. 广东工业大学学报, 2024, 41(2): 101-107.
Gu Hui-min, Xiao Yan-shan, Liu Bo. Multiple-kernel One-class Multiple-instance Learning Algorithm[J]. 2024, 41(2): 101-107.
古慧敏, 肖燕珊, 刘波. 基于多核学习的单分类多示例学习算法[J]. 广东工业大学学报, 2024, 41(2): 101-107. DOI: 10.12052/gdutxb.230001.
Gu Hui-min, Xiao Yan-shan, Liu Bo. Multiple-kernel One-class Multiple-instance Learning Algorithm[J]. 2024, 41(2): 101-107. DOI: 10.12052/gdutxb.230001.
将多核学习引入到单分类多示例学习中,提出了一种基于多核学习的单分类多示例支持向量数据描述算法,解决了多核学习方法在实际应用中多示例数据具有比较复杂分布结构的学习问题。本文算法是将多个示例数据通过多个不同的核函数多核映射到特征空间,在特征空间中通过支持向量数据描述算法构建球形分类器。该算法采用迭代优化框架,首先,根据初始化包中的正示例来优化目标函数以此建立分类器。然后,根据上一步得到的分类器再对包中的正示例的标签进行更新。最后,在Corel、VOC 2007和Messidor数据集上的实验结果表明,所提出的算法比单核多示例方法具有更好的性能,进一步验证了算法的可行性和有效性。
By introducing multiple-kernel into one-class multiple-instance learning
this paper proposes a novel multiple-kernel one-class multiple-instance learning based on support vector data description
which aims to solve the problem of multiple-kernel learning of multiple-instance data with a relatively complex distribution structure in practical applications. This algorithm maps multiple-instance data into the feature space through different multiple-kernel functions
and constructs a spherical classifier by using support vector data description algorithm. To iteratively optimize the proposed algorithm adopts an iterative optimization framework
we first initialize the instances in positive bags as positive
and optimize the objective function to build up the classifier. Then
the labels of the positive instances in each bag are updated according to the classifier obtained in the previous step. The experimental results on the Corel
VOC 2007 and Messidor datasets show that the proposed algorithm achieves significantly better classification performance than state-of-the-art methods
demonstrating its feasibility and effectiveness.
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