Poster
Label Efficient Learning of Transferable Representations acrosss Domains and Tasks
Zelun Luo · Yuliang Zou · Judy Hoffman · Li Fei-Fei
Pacific Ballroom #8
Keywords: [ Semi-Supervised Learning ] [ Unsupervised Learning ] [ Computer Vision ] [ Multitask and Transfer Learning ] [ Adversarial Networks ] [ Video, Motion and Tracking ] [ One-Shot/Low-Shot Learning Approaches ]
We propose a framework that learns a representation transferable across different domains and tasks in a data efficient manner. Our approach battles domain shift with a domain adversarial loss, and generalizes the embedding to novel task using a metric learning-based approach. Our model is simultaneously optimized on labeled source data and unlabeled or sparsely labeled data in the target domain. Our method shows compelling results on novel classes within a new domain even when only a few labeled examples per class are available, outperforming the prevalent fine-tuning approach. In addition, we demonstrate the effectiveness of our framework on the transfer learning task from image object recognition to video action recognition.
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