We consider the problem of discovering novel object categories in an image collection. While these images are unlabelled, we also assume prior knowledge of related but different image classes. We use such prior knowledge to reduce the ambiguity of clustering, and improve the quality of the newly discovered classes. Our contributions are twofold. The first contribution is to extend Deep Embedded Clustering to a transfer learning setting; we also improve the algorithm by introducing a representation bottleneck, temporal ensembling, and consistency. The second contribution is a method to estimate the number of classes in the unlabelled data. This also transfers knowledge from the known classes, using them as probes to diagnose different choices for the number of classes in the unlabelled subset. We thoroughly evaluate our method, substantially outperforming state-of-the-art techniques in a large number of benchmarks, including ImageNet, OmniGlot, CIFAR-100, CIFAR-10, and SVHN.

该研究考虑了在图像集合中发现新对象类别的问题，使用先前的相关但不同的图像类别的先验知识降低聚类的歧义，改善新发现类别的质量，其中使用了 Deep Embedded Clustering、传输学习、表示瓶颈、时间集成、一致性和类别估计等多种技巧，并在 ImageNet、OmniGlot、CIFAR-100、CIFAR-10 和 SVHN 等许多基准测试中显著优于现有技术。

通过深度转移聚类学习发现新的视觉类别