Document Type

Conference Proceeding

Publication Title

Advances in Neural Information Processing Systems

Abstract

Large neural networks can be pruned to a small fraction of their original size, with little loss in accuracy, by following a time-consuming “train, prune, re-train” approach. Frankle & Carbin [9] conjecture that we can avoid this by training lottery tickets, i.e., special sparse subnetworks found at initialization, that can be trained to high accuracy. However, a subsequent line of work [11, 41] presents concrete evidence that current algorithms for finding trainable networks at initialization, fail simple baseline comparisons, e.g., against training random sparse subnetworks. Finding lottery tickets that train to better accuracy compared to simple baselines remains an open problem. In this work, we resolve this open problem by proposing GEM-MINER which finds lottery tickets at initialization that beat current baselines. GEM-MINER finds lottery tickets trainable to accuracy competitive or better than Iterative Magnitude Pruning (IMP), and does so up to 19× faster.

Publication Date

12-2022

Keywords

Gems, Neural-networks, subnetworks, Simple++

Comments

Conference proceedings available at NeurIPS

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Uploaded 18 January 2024

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