Deep Neural Networks pruning via the Structured Perspective Regularization
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Abstract (arXiv)
In Machine Learning, Artificial Neural Networks (ANNs) are a very powerful tool, broadly used in many applications. Often, the selected (deep) architectures include many layers, and therefore a large amount of parameters, which makes training, storage and inference expensive. This motivated a stream of research about compressing the original networks into smaller ones without excessively sacrificing performances. Among the many proposed compression approaches, one of the most popular is pruning, whereby entire elements of the ANN (links, nodes, channels, ldots) and the corresponding weights are deleted. Since the nature of the problem is inherently combinatorial (what elements to prune and what not), we propose a new pruning method based on Operational Research tools. We start from a natural Mixed-Integer-Programming model for the problem, and we use the Perspective Reformulation technique to strengthen its continuous relaxation. Projecting away the indicator variables from this reformulation yields a new regularization term, which we call the Structured Perspective Regularization, that leads to structured pruning of the initial architecture. We test our method on some ResNet architectures applied to CIFAR-10, CIFAR-100 and ImageNet datasets, obtaining competitive performances w.r.t.~the state of the art for structured pruning.
Key facts. Cited by 4 papers in the map (data through 14 Oct 2026). Builds on 20 of its 40 references that are in the map. First posted on arXiv 28 Jun 2022.
Builds on
20 of 40 references.
References · 20
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8 more
- 2017Extremely Low Bit Neural Network: Squeeze the Last Bit Out with ADMMcited by 61
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Built on by
Citing papers per year: 2022: 1; 2023: 0; 2024: 0; 2025: 3.
4 papers.
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- 2025Scalable First-order Method for Certifying Optimal k-Sparse GLMscited by 1
- 2025A Metric Topology of Deep Learning for Data Classificationcited by 0
- 2025Optimization over Trained (and Sparse) Neural Networks: A Surrogate within a Surrogatecited by 0
- 2025Optimization over Trained (and Sparse) Neural Networks: A Surrogate within a Surrogate4 May 2025
- 2025Scalable First-order Method for Certifying Optimal k-Sparse GLMs13 Feb 2025
- 2025A Metric Topology of Deep Learning for Data Classification20 Jan 2025
- 2022State-driven Implicit Modeling for Sparsity and Robustness in Neural Networks19 Sep 2022