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|a 10.1109/TPAMI.2025.3597023
|2 doi
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Zhou, Jiahuan
|e verfasserin
|4 aut
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| 245 |
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|a Distribution-Aware Knowledge Aligning and Prototyping for Non-Exemplar Lifelong Person Re-Identification
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|c 2025
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|a Text
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|a ƒaComputermedien
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|a Date Revised 07.08.2025
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Lifelong person re-identification (LReID) suffers from the catastrophic forgetting problem when learning from non-stationary data streams. Existing exemplar-based and knowledge distillation-based LReID methods encounter data privacy and limited acquisition capacity, respectively. In this paper, we introduce the prototype, which is under-investigated in LReID, to better balance knowledge retention and acquisition. Previous prototype-based works primarily focused on the classification task, where prototypes were modeled as discrete points or statistical distributions. However, they either discarded the distribution information or omitted instance-level diversity, which are crucial fine-grained clues for LReID. Furthermore, the domain shifts between data sources result in a feature gap between the new and old data, which restricts the utilization of the fine-grained information in prototypes. To address these challenges, we propose Distribution-aware Knowledge Aligning and Prototyping (DKP++), a novel framework for modeling and leveraging prototypes in LReID. First, an Instance-level Distribution Modeling network is introduced to capture the local diversity of each instance. Next, a Distribution-oriented Prototype Generation algorithm transforms the instance-level diversity into identity-level distributions which are stored as prototypes. Then, a Prototype-based Knowledge Transfer module distills the knowledge within the prototypes to the new model. To mitigate the impact of domain shifts during knowledge transfer, we introduce a privacy-friendly Distribution Aligning module that transforms new input data to fit the historical distribution, which is incorporated with feature-level alignment constraints to enhance the coherence between new and old knowledge, effectively improving historical prototype utilization. Extensive experiments demonstrate that our method achieves a superior balance between plasticity and stability, outperforming state-of-the-art LReID methods by a large margin
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|a Journal Article
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| 700 |
1 |
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|a Xu, Kunlun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhuo, Fan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zou, Xu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peng, Yuxin
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on pattern analysis and machine intelligence
|d 1979
|g PP(2025) vom: 07. Aug.
|w (DE-627)NLM098212257
|x 1939-3539
|7 nnas
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| 773 |
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|g volume:PP
|g year:2025
|g day:07
|g month:08
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|u http://dx.doi.org/10.1109/TPAMI.2025.3597023
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