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Vote for Nearest Neighbors Meta-Pruning of Self-Supervised Networks
Haiyan Zhao · Tianyi Zhou · Guodong Long · Jing Jiang · Chengqi Zhang

Fri Jul 22 12:15 PM -- 01:15 PM (PDT) @

Pruning plays an essential role in deploying deep neural nets (DNNs) to the hardware of limited memory or computation. However, current high-quality iterative pruning can create a terrible carbon footprint when compressing a large DNN for a wide variety of devices and tasks. Can we reuse the pruning results on previous tasks to accelerate the pruning for a new task? Can we find a better initialization for a new task? We study this nearest neighbors meta-pruning'' problem by first investigating different choices of pre-trained models for pruning under limited iterations. Our empirical study reveals several advantages of the self-supervision pre-trained model when pruned for multiple tasks. We further study the overlap of pruned models for similar tasks. Inspired by these discoveries, we developMeta-Vote Pruning (MVP)'' to dynamically vote for all filters in the pre-trained model according to their chance of being selected by pruned models for tasks similar to it, so that a better initialized sub-network is generated for a new task. In experiments, we demonstrate the advantages of MVP by extensive empirical studies and comparisons with popular pruning methods.

Author Information

Haiyan Zhao (University of Technology Sydney)
Tianyi Zhou (University of Washington)

Tianyi Zhou is currently a PhD student at Paul G. Allen school of Computer Science and Engineering, University of Washington. He is supervised by Prof. Jeff Bilmes and Prof. Carlos Guestrin. He published ~50 papers at NeurIPS, ICML, ICLR, AISTATS, NAACL, KDD, ICDM, IJCAI, AAAI, ISIT, Machine Learning Journal, IEEE TIP, IEEE TNNLS, IEEE TKDE, etc, with ~1700 citations. He is the recipient of the Best student paper award at ICDM 2013.

Guodong Long (University of Technology Sydney)
Jing Jiang (University of Technology Sydney)
Chengqi Zhang (University of Technology Sydney)

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