Abstract
Deep learning has achieved a remarkable performance
breakthrough in several fields, most notably in speech
recognition, natural language processing, and computer vision. In particular, convolutional neural network (CNN) architectures currently produce state-of-the-art performance
on a variety of image analysis tasks such as object detection and recognition. Most of deep learning research has
so far focused on dealing with 1D, 2D, or 3D Euclideanstructured data such as acoustic signals, images, or videos.
Recently, there has been an increasing interest in geometric deep learning, attempting to generalize deep learning
methods to non-Euclidean structured data such as graphs
and manifolds, with a variety of applications from the domains of network analysis, computational social science,
or computer graphics. In this paper, we propose a uni-
fied framework allowing to generalize CNN architectures to
non-Euclidean domains (graphs and manifolds) and learn
local, stationary, and compositional task-specific features.
We show that various non-Euclidean CNN methods previously proposed in the literature can be considered as particular instances of our framework. We test the proposed
method on standard tasks from the realms of image-, graphand 3D shape analysis and show that it consistently outperforms previous approaches.