Computer Science > Computer Vision and Pattern Recognition
arXiv:2406.02862 (cs)
[Submitted on 5 Jun 2024]
Title:Rethinking Guidance Information to Utilize Unlabeled Samples:A Label Encoding Perspective
View a PDF of the paper titled Rethinking Guidance Information to Utilize Unlabeled Samples:A Label Encoding Perspective, by Yulong Zhang and 6 other authors
View PDFHTML (experimental)Abstract:Empirical Risk Minimization (ERM) is fragile in scenarios with insufficient labeled samples. A vanilla extension of ERM to unlabeled samples is Entropy Minimization (EntMin), which employs the soft-labels of unlabeled samples to guide their learning. However, EntMin emphasizes prediction discriminability while neglecting prediction diversity. To alleviate this issue, in this paper, we rethink the guidance information to utilize unlabeled samples. By analyzing the learning objective of ERM, we find that the guidance information for labeled samples in a specific category is the corresponding label encoding. Inspired by this finding, we propose a Label-Encoding Risk Minimization (LERM). It first estimates the label encodings through prediction means of unlabeled samples and then aligns them with their corresponding ground-truth label encodings. As a result, the LERM ensures both prediction discriminability and diversity, and it can be integrated into existing methods as a plugin. Theoretically, we analyze the relationships between LERM and ERM as well as EntMin. Empirically, we verify the superiority of the LERM under several label insufficient scenarios. The codes are available atthis https URL.
| Comments: | Accepted to ICML 2024 |
| Subjects: | Computer Vision and Pattern Recognition (cs.CV) |
| Cite as: | arXiv:2406.02862 [cs.CV] |
| (orarXiv:2406.02862v1 [cs.CV] for this version) | |
| https://doi.org/10.48550/arXiv.2406.02862 arXiv-issued DOI via DataCite |
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View a PDF of the paper titled Rethinking Guidance Information to Utilize Unlabeled Samples:A Label Encoding Perspective, by Yulong Zhang and 6 other authors
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