Zero-Shot Learning with Missing Attributes using Semantic Correlations
- Publisher:
- IEEE
- Publication Type:
- Conference Proceeding
- Citation:
- 2021 International Joint Conference on Neural Networks (IJCNN), 2021, 2021-July
- Issue Date:
- 2021-09-20
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| Zero-Shot_Learning_with_Missing_Attributes_using_Semantic_Correlations.pdf | Published version | 3.02 MB |
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Zero-shot learning (ZSL) aims to recognize instances belonging to unseen categories which are not available at training time. Previous ZSL models learn a projection function from the visual feature space to a semantic space which contains a description of the categories. The semantic attributes are often correlated with each other at the semantic space and it is not appropriate to learn them independently. Existing ZSL methods are designed to work on complete descriptions of the semantic attributes. However, because these attributes are human-designed values, they might be incomplete or contains noisy values which may affect the recognition performance of many existing ZSL models. This paper proposes a novel zero-shot learning approach (ZSL-MSA) to handle missing and noisy semantic attributes during the training process. Significantly, the proposed method learns a supplementary attribute matrix by exploiting the attribute correlation. The proposed method also learns the relevant feature coefficients in the projection matrix to identify the correlated attribute space. Th proposed method also adopts l1 regularization norm to select the relevant sparse features. A constrained optimization function is formulated and solved using the accelerated proximal gradient method. Extensive experiments on three benchmark datasets using ZSL and generalized ZSL demonstrate the effectiveness of the proposed method.
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