Geometrically Aligned Transfer Encoder for Inductive Transfer in Regression Tasks

Published: 16 Jan 2024, Last Modified: 28 Mar 2024ICLR 2024 posterEveryoneRevisionsBibTeX
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Keywords: Transfer Learning, Inductive Transfer, Geometrical Deeplearning, Regression
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TL;DR: A novel method of inductive transfer learning on regression tasks based on differential geometry
Abstract: Transfer learning is a crucial technique for handling a small amount of data that is potentially related to other abundant data. However, most of the existing methods are focused on classification tasks using images and language datasets. Therefore, in order to expand the transfer learning scheme to regression tasks, we propose a novel transfer technique based on differential geometry, namely the Geometrically Aligned Transfer Encoder (${\it GATE}$). In this method, we interpret the latent vectors from the model to exist on a Riemannian curved manifold. We find a proper diffeomorphism between pairs of tasks to ensure that every arbitrary point maps to a locally flat coordinate in the overlapping region, allowing the transfer of knowledge from the source to the target data. This also serves as an effective regularizer for the model to behave in extrapolation regions. In this article, we demonstrate that ${\it GATE}$ outperforms conventional methods and exhibits stable behavior in both the latent space and extrapolation regions for various molecular graph datasets.
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Primary Area: transfer learning, meta learning, and lifelong learning
Submission Number: 4338
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