Targeted adversarial discriminative domain adaptation

Abstract

Domain adaptation is a technology enabling Aided Target Recognition (AiTR) and other algorithms for environments and targets where data or labeled data is scarce. Recent advances in unsupervised domain adaptation have demonstrated excellent performance but only when the domain shift is relatively small. This paper proposes Targeted Adversarial Discriminative Domain Adaptation (T-ADDA), a semi-supervised domain adaptation method by extending the Adversarial Discriminative Domain Adaptation (ADDA) framework. By providing at least one labeled target image per class, T-ADDA significantly boosts the performance of ADDA and is applicable to the challenging scenario where the set of targets in the source and target domains are not the same. The efficacy of T-ADDA is demonstrated by several experiments using the Modified National Institute of Standards and Technology (MNIST), Street View House Numbers (SVHN), and Devanagari Handwritten Character (DHC) datasets and then extended to aerial image datasets Aerial Image Data (AID) and University of California, Merced (UCM).