Proving the Lottery Ticket Hypothesis: Pruning is All You Need

ICML 2020

Proving the Lottery Ticket Hypothesis: Pruning is All You Need

Jul 12, 2020
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The lottery ticket hypothesis (Frankle and Carbin, 2018), states that a randomly-initialized network contains a small subnetwork such that, when trained in isolation, can compete with the performance of the original network. We prove an even stronger hypothesis (as was also conjectured in Ramanujan et al., 2019), showing that for every bounded distribution and every target network with bounded weights, a sufficiently over-parameterized neural network with random weights contains a subnetwork with roughly the same accuracy as the target network, without any further training. Speakers: Gilad Yehudai, Eran Malach, Shai Shalev-Schwartz, Ohad Shamir

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