Title
Repr: Improved Training Of Convolutional Filters
Abstract
A well-trained Convolutional Neural Network can easily be pruned without significant loss of performance. This is because of unnecessary overlap in the features captured by the network's filters. Innovations in network architecture such as skip/dense connections and Inception units have mitigated this problem to some extent, but these improvements come with increased computation and memory requirements at run-time. We attempt to address this problem from another angle - not by changing the network structure but by altering the training method. We show that by temporarily pruning and then restoring a subset of the model's filters, and repeating this process cyclically, overlap in the learned features is reduced, producing improved generalization. We show that the existing model-pruning criteria are not optimal for selecting filters to prune in this context and introduce inter-filter orthogonality as the ranking criteria to determine under-expressive filters. Our method is applicable both to vanilla convolutional networks and more complex modern architectures, and improves the performance across a variety of tasks, especially when applied to smaller networks.
Year
DOI
Venue
2018
10.1109/CVPR.2019.01092
2019 IEEE/CVF CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION (CVPR 2019)
Field
DocType
Volume
Ranking,Convolutional neural network,Computer science,Network architecture,Orthogonality,Artificial intelligence,Machine learning,Computation,Network structure
Journal
abs/1811.07275
ISSN
Citations 
PageRank 
1063-6919
5
0.44
References 
Authors
36
4
Name
Order
Citations
PageRank
Aaditya Prakash1122.84
James A. Storer2931156.06
Dinei A. F. Florêncio3111878.52
Cha Zhang41671115.71