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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1109/TIP.2021.3050677
|2 doi
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|a DE-627
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|e rakwb
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|a eng
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|a Xu, Bingrong
|e verfasserin
|4 aut
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|a Semi-Supervised Low-Rank Semantics Grouping for Zero-Shot Learning
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|c 2021
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 27.01.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Zero-shot learning has received great interest in visual recognition community. It aims to classify new unobserved classes based on the model learned from observed classes. Most zero-shot learning methods require pre-provided semantic attributes as the mid-level information to discover the intrinsic relationship between observed and unobserved categories. However, it is impractical to annotate the enriched label information of the observed objects in real-world applications, which would extremely hurt the performance of zero-shot learning with limited labeled seen data. To overcome this obstacle, we develop a Low-rank Semantics Grouping (LSG) method for zero-shot learning in a semi-supervised fashion, which attempts to jointly uncover the intrinsic relationship across visual and semantic information and recover the missing label information from seen classes. Specifically, the visual-semantic encoder is utilized as projection model, low-rank semantic grouping scheme is explored to capture the intrinsic attributes correlations and a Laplacian graph is constructed from the visual features to guide the label propagation from labeled instances to unlabeled ones. Experiments have been conducted on several standard zero-shot learning benchmarks, which demonstrate the efficiency of the proposed method by comparing with state-of-the-art methods. Our model is robust to different levels of missing label settings. Also visualized results prove that the LSG can distinguish the test unseen classes more discriminative
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|a Journal Article
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|a Zeng, Zhigang
|e verfasserin
|4 aut
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|a Lian, Cheng
|e verfasserin
|4 aut
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|a Ding, Zhengming
|e verfasserin
|4 aut
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|i Enthalten in
|t IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
|d 1992
|g 30(2021) vom: 01., Seite 2207-2219
|w (DE-627)NLM09821456X
|x 1941-0042
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|g volume:30
|g year:2021
|g day:01
|g pages:2207-2219
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|u http://dx.doi.org/10.1109/TIP.2021.3050677
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|d 30
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|h 2207-2219
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