arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.07757cs.CVcs.LG
收藏

广义零样本学习的两级对抗性视觉语义耦合

Two-Level Adversarial Visual-Semantic Coupling for Generalized Zero-shot Learning

Indian Institute of Technology(印度理工学院)

Shivam Chandhok, Vineeth N Balasubramanian

摘要:

生成式zero-shot方法的性能主要取决于生成特征的质量以及模型如何促进视觉和语义域之间的知识传递。生成的特征的质量是模型捕获底层数据分布的几种模式的能力的直接结果。为了解决这些问题,我们提出了一个新的两级联合最大化思想,在训练过程中用推理网络来增强生成网络,这有助于我们的模型捕获数据的几种模式,并生成更好地代表底层数据分布的特征。这为视觉和语义领域之间的知识有效转移提供了强大的跨模态交互。此外,现有方法训练zero-shot分类器生成合成图像特征或通过利用表示学习产生的潜在嵌入。在这项工作中,我们将这些范例统一成一个单一的模型,除了合成图像特征,还利用推理网络的表示学习能力,为最终的zero-shot识别任务提供判别特征。我们评估我们的方法对四个基准数据集,即CUB,FLO,AWA1和AWA2对几个国家的最先进的方法,并显示其性能。我们还进行消融研究,以更仔细地分析和理解我们的方法,用于广义零样本学习任务。

英文摘要:

The performance of generative zero-shot methods mainly depends on the quality of generated features and how well the model facilitates knowledge transfer between visual and semantic domains. The quality of generated features is a direct consequence of the ability of the model to capture the several modes of the underlying data distribution. To address these issues, we propose a new two-level joint maximization idea to augment the generative network with an inference network during training which helps our model capture the several modes of the data and generate features that better represent the underlying data distribution. This provides strong cross-modal interaction for effective transfer of knowledge between visual and semantic domains. Furthermore, existing methods train the zero-shot classifier either on generate synthetic image features or latent embeddings produced by leveraging representation learning. In this work, we unify these paradigms into a single model which in addition to synthesizing image features, also utilizes the representation learning capabilities of the inference network to provide discriminative features for the final zero-shot recognition task. We evaluate our approach on four benchmark datasets i.e. CUB, FLO, AWA1 and AWA2 against several state-of-the-art methods, and show its performance. We also perform ablation studies to analyze and understand our method more carefully for the Generalized Zero-shot Learning task.

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。

↑