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Title: Multi-class heterogeneous domain adaptation
Authors: Zhou, Joey Tianyi
Tsang, Ivor W.
Pan, Sinno Jialin
Tan, Mingkui
Keywords: Multi-class Classification
Heterogeneous Domain Adaptation
Engineering::Computer science and engineering
Issue Date: 2019
Source: Zhou, J. T., Tsang, I. W., Pan, S. J., & Tan, M. (2019). Multi-class heterogeneous domain adaptation. Journal of Machine Learning Research, 20(57), 1-31.
Series/Report no.: Journal of Machine Learning Research
Abstract: A crucial issue in heterogeneous domain adaptation (HDA) is the ability to learn a feature mapping between different types of features across domains. Inspired by language translation, a word translated from one language corresponds to only a few words in another language, we present an efficient method named Sparse Heterogeneous Feature Representation (SHFR) in this paper for multi-class HDA to learn a sparse feature transformation between domains with multiple classes. Specifically, we formulate the problem of learning the feature transformation as a compressed sensing problem by building multiple binary classifiers in the target domain as various measurement sensors, which are decomposed from the target multi-class classification problem. We show that the estimation error of the learned transformation decreases with the increasing number of binary classifiers. In other words, for adaptation across heterogeneous domains to be successful, it is necessary to construct a sufficient number of incoherent binary classifiers from the original multi-class classification problem. To achieve this, we propose to apply the error correcting output correcting (ECOC) scheme to generate incoherent classifiers. To speed up the learning of the feature transformation across domains, we apply an efficient batch-mode algorithm to solve the resultant nonnegative sparse recovery problem. Theoretically, we present a generalization error bound of our proposed HDA method under a multi-class setting. Lastly, we conduct extensive experiments on both synthetic and real-world datasets to demonstrate the superiority of our proposed method over existing state-of-the-art HDA methods in terms of prediction accuracy and training efficiency.
ISSN: 1532-4435
Rights: © 2019 Joey Tianyi Zhou, Ivor W. Tsang, Sinno Jialin Pan, Mingkui Tan. License: CC-BY 4.0, see Attribution requirements are provided at
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCSE Journal Articles

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