Continual learning is a process that involves training learning agents to sequentially master a stream of tasks or classes without revisiting past data. The challenge lies in leveraging previously acquired knowledge to learn new tasks efficiently, while avoiding catastrophic forgetting. Existing methods primarily focus on single domains, restricting their applicability to specific problems. In this work, we introduce a novel approach called Cross-Domain Continual Learning (CDCL) that addresses the limitations of being limited to single supervised domains. Our method combines inter- and intra-task cross-attention mechanisms within a compact convolutional network. This integration enables the model to maintain alignment with features from previous tasks, thereby delaying the data drift that may occur between tasks, while performing unsupervised cross-domain (UDA) between related domains. By leveraging an intra-task-specific pseudo-labeling method, we ensure accurate input pairs for both labeled and unlabeled samples, enhancing the learning process. To validate our approach, we conduct extensive experiments on public UDA datasets, showcasing its positive performance on cross-domain continual learning challenges. Additionally, our work introduces incremental ideas that contribute to the advancement of this field. We make our code and models available to encourage further exploration and reproduction of our results: \url{https://github.com/Ivsucram/CDCL}

本研究提出了一种名为交叉领域连续学习（CDCL）的新方法，在一个紧凑的卷积网络中结合了跨任务关注机制，实现了对先前任务特征的对齐，并在相关领域之间进行了无监督的交叉领域学习（UDA）。通过使用一种任务内特定的伪标签方法，确保了有标签和无标签样本的准确输入对，从而增强了学习过程。本方法在公开的UDA数据集上进行了广泛实验，显示出在交叉领域连续学习挑战上的良好性能。此外，本研究提出了增量思想，为该领域的进展做出了贡献。

跨领域连续学习