Title
A Comprehensive Analysis of Deep Regression
Abstract
Deep learning revolutionized data science, and recently its popularity has grown exponentially, as did the amount of papers employing deep networks. Vision tasks, such as human pose estimation, did not escape from this trend. There is a large number of deep models, where small changes in the network architecture, or in the data pre-processing, together with the stochastic nature of the optimization procedures, produce notably different results, making extremely difficult to sift methods that significantly outperform others. This situation motivates the current study, in which we perform a systematic evaluation and statistical analysis of vanilla deep regression, i.e., convolutional neural networks with a linear regression top layer. This is the first comprehensive analysis of deep regression techniques. We perform experiments on four vision problems, and report confidence intervals for the median performance as well as the statistical significance of the results, if any. Surprisingly, the variability due to different data pre-processing procedures generally eclipses the variability due to modifications in the network architecture. Our results reinforce the hypothesis according to which, in general, a general-purpose network (e.g., VGG-16 or ResNet-50) adequately tuned can yield results close to the state-of-the-art without having to resort to more complex and ad-hoc regression models.
Year
DOI
Venue
2018
10.1109/TPAMI.2019.2910523
IEEE Transactions on Pattern Analysis and Machine Intelligence
Keywords
Field
DocType
Deep learning,regression,computer vision,convolutional neural networks,statistical significance,empirical and systematic evaluation,head-pose estimation,full-body pose estimation,facial landmark detection
Scale-invariant feature transform,Regression,Computer science,Convolutional neural network,Network architecture,Pose,Artificial intelligence,Deep learning,Confidence interval,Machine learning,Linear regression
Journal
Volume
Issue
ISSN
42
9
0162-8828
Citations 
PageRank 
References 
7
0.49
45
Authors
4
Name
Order
Citations
PageRank
Stéphane Lathuilière1335.98
Pablo Mesejo2163.01
Xavier Alameda-Pineda323228.24
Radu Horaud42776261.99