Safe Deep Semi-Supervised Learning for Unseen-Class Unlabeled Data

12. Červenec 2020

Řečníci

O prezentaci

Deep semi-supervised learning (SSL) has been shown very effectively. However, its performance is seriously hurt when the class distribution is mismatched, among which a common phenomenon is that unlabeled data contains the classes not seen in labeled data. Efforts on this aspect remain to be limited. This paper proposes a simple and effective safe deep SSL method to alleviate the performance harm caused by it. In theory, the result learned from the new method is never worse than learning from merely labeled data, and it is theoretically guaranteed that its generalization approaches the optimal in the order O(√(dln(n)/n)), even faster than the convergence rate in supervised learning associated with massive parameters. In the experiment of benchmark data, unlike the existing deep SSL methods which are no longer as good as supervised learning in 40% of unseen-class unlabeled data, the new method can still achieve performance gain in more than 60% of unseen-class unlabeled data. The proposal is suitable for any deep SSL algorithm and can be easily extended to handle other cases of class distribution mismatch.

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Kategorie

O organizátorovi (ICML 2020)

The International Conference on Machine Learning (ICML) is the premier gathering of professionals dedicated to the advancement of the branch of artificial intelligence known as machine learning. ICML is globally renowned for presenting and publishing cutting-edge research on all aspects of machine learning used in closely related areas like artificial intelligence, statistics and data science, as well as important application areas such as machine vision, computational biology, speech recognition, and robotics. ICML is one of the fastest growing artificial intelligence conferences in the world. Participants at ICML span a wide range of backgrounds, from academic and industrial researchers, to entrepreneurs and engineers, to graduate students and postdocs.

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