Discrete Few-Shot Learning for Pan Privacy

Roei Gelbhart; Benjamin I. P. Rubinstein

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arXiv · 2006.13120

Discrete Few-Shot Learning for Pan Privacy

Roei Gelbhart·Benjamin I. P. Rubinstein

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Abstract

In this paper we present the first baseline results for the task of few-shot learning of discrete embedding vectors for image recognition. Few-shot learning is a highly researched task, commonly leveraged by recognition systems that are resource constrained to train on a small number of images per class. Few-shot systems typically store a continuous embedding vector of each class, posing a risk to privacy where system breaches or insider threats are a concern. Using discrete embedding vectors, we devise a simple cryptographic protocol, which uses one-way hash functions in order to build recognition systems that do not store their users' embedding vectors directly, thus providing the guarantee of computational pan privacy in a practical and wide-spread setting.

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Roei Gelbhart, Benjamin I. P. Rubinstein. 2020-06-23. Discrete Few-Shot Learning for Pan Privacy. https://arxiv.org/abs/2006.13120

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