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arXiv · 1703.02641

Don't Fear the Bit Flips: Optimized Coding Strategies for Binary Classification

Frederic Sala·Shahroze Kabir·Guy Van den Broeck·Lara Dolecek
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Abstract

After being trained, classifiers must often operate on data that has been corrupted by noise. In this paper, we consider the impact of such noise on the features of binary classifiers. Inspired by tools for classifier robustness, we introduce the same classification probability (SCP) to measure the resulting distortion on the classifier outputs. We introduce a low-complexity estimate of the SCP based on quantization and polynomial multiplication. We also study channel coding techniques based on replication error-correcting codes. In contrast to the traditional channel coding approach, where error-correction is meant to preserve the data and is agnostic to the application, our schemes specifically aim to maximize the SCP (equivalently minimizing the distortion of the classifier output) for the same redundancy overhead.

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Frederic Sala, Shahroze Kabir, Guy Van den Broeck, Lara Dolecek. 2017-03-08. Don't Fear the Bit Flips: Optimized Coding Strategies for Binary Classification. https://arxiv.org/abs/1703.02641

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