arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2203.06359cs.CV
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面向非样本类增量学习的自支持表示扩展

Self-Sustaining Representation Expansion for Non-Exemplar Class-Incremental Learning

University of Science and Technology of China(中国科学技术大学);Institute of Artificial Intelligence, Hefei Comprehensive National Science Center(合肥综合性国家科学中心人工智能研究院);University of Rochester(罗切斯特大学)

Kai Zhu, Wei Zhai, Yang Cao, Jiebo Luo, Zheng-Jun Zha

摘要:

非样本类增量学习是指在旧类样本无法保存的情况下,同时识别新类和旧类。这是一个具有挑战性的任务,因为表示优化和特征保留只能在新类的监督下实现。为了解决这个问题,我们提出了一种新的自我维持的表示扩展方案。我们的计划包括一个结构重组策略,融合主分支扩展和侧分支更新,以保持旧的功能,和一个主分支蒸馏计划转移不变的知识。此外,提出了一种原型选择机制,通过选择性地将新的样品纳入蒸馏过程中,以增强新旧类之间的区分。在三个基准上进行的大量实验表明,性能显著提高,分别比最先进的方法高出3%、3%和6%。

英文摘要:

Non-exemplar class-incremental learning is to recognize both the old and new classes when old class samples cannot be saved. It is a challenging task since representation optimization and feature retention can only be achieved under supervision from new classes. To address this problem, we propose a novel self-sustaining representation expansion scheme. Our scheme consists of a structure reorganization strategy that fuses main-branch expansion and side-branch updating to maintain the old features, and a main-branch distillation scheme to transfer the invariant knowledge. Furthermore, a prototype selection mechanism is proposed to enhance the discrimination between the old and new classes by selectively incorporating new samples into the distillation process. Extensive experiments on three benchmarks demonstrate significant incremental performance, outperforming the state-of-the-art methods by a margin of 3%, 3% and 6%, respectively.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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