| 融合异构特征的子空间迁移学习算法 |
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| 引用本文： | 张景祥,王士同,邓赵红,蒋亦樟,李奕.融合异构特征的子空间迁移学习算法[J].自动化学报,2014,40(2):236-246. |
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| 作者姓名： | 张景祥 王士同 邓赵红 蒋亦樟 李奕 |
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| 作者单位： | 1.江南大学数字媒体学院 无锡 214122; |
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| 基金项目： | 国家自然科学基金（61170122，61202311，61272210）；江苏省自然科学基金（BK2012552）资助 |
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| 摘 要： | 特征迁移重在领域共有特征间学习，然而其忽略领域特有特征的判别信息，使算法的适应性受到一定的局限. 针对此问题，提出了一种融合异构特征的子空间迁移学习（The subspace transfer learning algorithm integrating with heterogeneous features，STL-IHF）算法.该算法将数据的特征空间看成共享和特有两个特征子空间的组合，同时基于经验风险最 小框架将共享特征和特有特征共同嵌入到支持向量机（Support vector machine，SVM）的训练过程中.其在共享特征子空间上实现知识迁移的 同时兼顾了领域特有的异构信息，增强了算法的适应性.模拟和真实数据集上的实验结果表明了所提方法的有效性.
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| 关 键 词： | 特征空间 异构特征 迁移学习 分类 支持向量机 |
| 收稿时间： | 2012-12-31 |
A Subspace Transfer Learning Algorithm Integrating Heterogeneous Features |
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| ZHANG Jing-Xiang,WANG Shi-Tong,DENG Zhao-Hong,JIANG Yi-Zhang,LI Yi.A Subspace Transfer Learning Algorithm Integrating Heterogeneous Features[J].Acta Automatica Sinica,2014,40(2):236-246. |
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| Authors: | ZHANG Jing-Xiang WANG Shi-Tong DENG Zhao-Hong JIANG Yi-Zhang LI Yi |
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| Affiliation: | 1.School of Digital Media, Jiangnan University, Wuxi 214122;2.School of Science, Jiangnan University, Wuxi 214122 |
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| Abstract: | The traditional transfer feature algorithms usually focus on learning by using the common features between the source domain and the target domain but ignore the discriminant information of the specific features of each domain, which makes the existing algorithms lack the adaptability to some extent. In order to circumvent this issue, in this paper a novel subspace transfer learning algorithm integrating heterogeneous features (STL-IHF) is proposed based on the empirical risk minimum framework. The proposed method is based on the support vector machine (SVM)-like framework with the feature space of each domain as a combination of the common features and the specified features. The proposed algorithm can not only realize the transfer learning from the common features but also effectively leverage the specified features of each domain, which makes it have much better adaptability in learning. Experimental results on simulation and real data set show the power of the proposed algorithm. |
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| Keywords: | Feature subspace heterogeneous features transfer learning classification support vector machine (SVM) |
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