Joint Weakly Parameter-Shared and Higher Order Statistical Criteria for Domain Adaptation

Autor: Guangrong Bian, Pan Wang, Ming Zhao
Rok vydání: 2017
Předmět:
Zdroj: 2017 International Conference on Industrial Informatics - Computing Technology, Intelligent Technology, Industrial Information Integration (ICIICII).
DOI: 10.1109/iciicii.2017.41
Popis: Domain adaptation is a particular case of transfer learning that applies labeled data in one or more related source domains, to learn a classifier for unseen or unlabeled data in a target domain. Recent studies reveal that a deep neural network can learn transferable features which generalize well to novel tasks with domain adaptation. However, most existing methods use the strongly parameter-shared architecture with the same weights for both source and target data, and transferring criteria commonly uses maximum mean discrepancy (MMD). In order to get more flexible and robust features, a new architecture joint weakly parameter-shared structure and higher order statistical criteria as transferring criteria is introduced. This architecture is a two-stream architecture, one of which operates in the source domain and the other in the target domain. Different from the strongly parameter-shared structure, the weakly parameter-shared structure allow the use of separate layers for different domain. In addition, central moment discrepancy (CMD), as a higher order statistical criteria, is used in the approach to measure domain feature discrepancy more accurate. The approach can extract more appropriate domain-invariant features and domain-specific features, making our model more robust and accurate. Experimental results on the digital datasets will show its competitive performance as compared with the other state-of-the-art methods.
Databáze: OpenAIRE