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Poster
Similarity and Matching of Neural Network Representations
Adrián Csiszárik · Péter Kőrösi-Szabó · Ákos Matszangosz · Gergely Papp · Dániel Varga

Thu Dec 09 08:30 AM -- 10:00 AM (PST) @

We employ a toolset --- dubbed Dr. Frankenstein --- to analyse the similarity of representations in deep neural networks. With this toolset we aim to match the activations on given layers of two trained neural networks by joining them with a stitching layer. We demonstrate that the inner representations emerging in deep convolutional neural networks with the same architecture but different initialisations can be matched with a surprisingly high degree of accuracy even with a single, affine stitching layer. We choose the stitching layer from several possible classes of linear transformations and investigate their performance and properties. The task of matching representations is closely related to notions of similarity. Using this toolset we also provide a novel viewpoint on the current line of research regarding similarity indices of neural network representations: the perspective of the performance on a task.

Author Information

Adrián Csiszárik (Alfred Renyi Institute of Mathematics)
Péter Kőrösi-Szabó (Alfréd Rényi Institute of Mathematics)
Ákos Matszangosz (Alfréd Rényi Institute of Mathematics)
Gergely Papp (Alfréd Rényi Institute of Mathematics)
Dániel Varga (Alfréd Rényi Institute of Mathematics)

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