论文标题
班级感知的大学启发了重新平衡学习,以进行长尾识别
Class-Aware Universum Inspired Re-Balance Learning for Long-Tailed Recognition
论文作者
论文摘要
少数族裔类的数据增强是长尾识别的有效策略,因此开发了大量方法。尽管这些方法都确保了样本数量的平衡,但是增强样品的质量并不总是令人满意的识别,容易出现诸如过度拟合,缺乏多样性,语义漂移等问题等问题。对于这些问题,我们提出了阶级意识到的大学启发的重新平衡学习(CAUIRR),以使量子的范围较低,从而使班级的质量和级别的个人能力恢复了级别的质量。特别是,从理论上讲,我们从贝叶斯的角度来证明,凯尔学到的分类器与在平衡状态下学到的那些分类器一致。此外,我们进一步开发了一种高阶混合方法,该方法可以自动生成类感知的Universum(CAU)数据,而无需求助于任何外部数据。与传统的大学不同,这种产生的大学还考虑了域的相似性,阶级可分离性和样本多样性。基准数据集上的广泛实验证明了我们方法具有令人惊讶的优势,尤其是与最先进的方法相比,少数族裔类别的TOP1准确性提高了1.9%6%。
Data augmentation for minority classes is an effective strategy for long-tailed recognition, thus developing a large number of methods. Although these methods all ensure the balance in sample quantity, the quality of the augmented samples is not always satisfactory for recognition, being prone to such problems as over-fitting, lack of diversity, semantic drift, etc. For these issues, we propose the Class-aware Universum Inspired Re-balance Learning(CaUIRL) for long-tailed recognition, which endows the Universum with class-aware ability to re-balance individual minority classes from both sample quantity and quality. In particular, we theoretically prove that the classifiers learned by CaUIRL are consistent with those learned under the balanced condition from a Bayesian perspective. In addition, we further develop a higher-order mixup approach, which can automatically generate class-aware Universum(CaU) data without resorting to any external data. Unlike the traditional Universum, such generated Universum additionally takes the domain similarity, class separability, and sample diversity into account. Extensive experiments on benchmark datasets demonstrate the surprising advantages of our method, especially the top1 accuracy in minority classes is improved by 1.9% 6% compared to the state-of-the-art method.