To successfully apply trained neural network models to new domains, powerful transfer learning solutions are essential. We propose to introduce a novel cross-domain latent modulation mechanism to a variational autoencoder framework so as to achieve effective transfer learning. Our key idea is to procure deep representations from one data domain and use it to influence the reparameterization of the latent variable of another domain. Specifically, deep representations of the source and target domains are first extracted by a unified inference model and aligned by employing gradient reversal. The learned deep representations are then cross-modulated to the latent encoding of the alternative domain, where consistency constraints are also applied. In the empirical validation that includes a number of transfer learning benchmark tasks for unsupervised domain adaptation and image-to-image translation, our model demonstrates competitive performance, which is also supported by evidence obtained from visualization.

通过引入一种全新的跨域潜在调制机制来实现有效迁移学习，利用源域和目标域的深度表示进行交叉调制，通过可视化的证据得到支撑，我们提出了一种基于变分自编码器框架的解决方案，并在多个迁移学习基准任务中展示了强大的表现，特别是在无监督领域适应和图像到图像翻译方面。

交叉领域潜在调制的变分迁移学习