Verified Neural Compressed Sensing
arxiv(2024)
摘要
We develop the first (to the best of our knowledge) provably correct neural
networks for a precise computational task, with the proof of correctness
generated by an automated verification algorithm without any human input. Prior
work on neural network verification has focused on partial specifications that,
even when satisfied, are not sufficient to ensure that a neural network never
makes errors. We focus on applying neural network verification to computational
tasks with a precise notion of correctness, where a verifiably correct neural
network provably solves the task at hand with no caveats. In particular, we
develop an approach to train and verify the first provably correct neural
networks for compressed sensing, i.e., recovering sparse vectors from a number
of measurements smaller than the dimension of the vector. We show that for
modest problem dimensions (up to 50), we can train neural networks that
provably recover a sparse vector from linear and binarized linear measurements.
Furthermore, we show that the complexity of the network (number of
neurons/layers) can be adapted to the problem difficulty and solve problems
where traditional compressed sensing methods are not known to provably work.
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