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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1109/TIP.2019.2899987
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|a eng
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| 100 |
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|a Shen, Fumin
|e verfasserin
|4 aut
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|a Scalable Zero-Shot Learning via Binary Visual-Semantic Embeddings
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|c 2019
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|a Text
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|a Date Revised 27.02.2024
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|a Citation Status Publisher
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|a Zero-shot learning aims to classify visual instances from unseen classes in the absence of training examples. This is typically achieved by directly mapping visual features to a semantic embedding space of classes (e.g., attributes or word vectors), where the similarity between the two modalities can be readily measured. However, the semantic space may not be reliable for recognition due to the noisy class embeddings or visual bias problem. In this work, we propose a novel Binary embedding based Zero-Shot Learning (BZSL) method, which recognizes visual instances from unseen classes through an intermediate discriminative Hamming space. Specifically, BZSL jointly learns two binary coding functions to encode both visual instances and class embeddings into the Hamming space, which well alleviates the visual-semantic bias problem. As a desiring property, classifying an unseen instance thereby can be efficiently done by retrieving its nearest-class codes with minimal Hamming distance. During training, by introducing two auxiliary variables for the coding functions, we formulate an equivalent correlation maximization problem, which admits an analytical solution. The resulting algorithm thus enjoys both highly efficient training and scalable novel class inferring. Extensive experiments on four benchmark datasets, including the full ImageNet Fall 2011 dataset with over 20K unseen classes, demonstrate the superiority of our method on the zero-shot learning task. Particularly, we show that increasing the binary embedding dimension can inevitably improve the recognition accuracy
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|a Journal Article
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|a Zhou, Xiang
|e verfasserin
|4 aut
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| 700 |
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|a Yu, Jun
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Yang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Li
|e verfasserin
|4 aut
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| 700 |
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|a Shen, Heng Tao
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
|d 1992
|g (2019) vom: 18. Feb.
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|x 1941-0042
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|g year:2019
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|u http://dx.doi.org/10.1109/TIP.2019.2899987
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