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A Neuro-AI Interface for Evaluating Generative Adversarial Networks

Authors: 

Zhengwei Wang, Qi She, Alan Smeaton, Tomas Ward, Graham Healy

Publication Type: 
Refereed Original Article
Abstract: 
Generative adversarial networks (GANs) are increasingly attracting attention in the computer vision, natural language processing, speech synthesis and similar domains. However, evaluating the performance of GANs is still an open and challenging problem. Existing evaluation metrics primarily measure the dissimilarity between real and generated images using automated statistical methods. They often require large sample sizes for evaluation and do not directly reflect human perception of image quality. In this work, we introduce an evaluation metric called Neuroscore, for evaluating the performance of GANs, that more directly reflects psychoperceptual image quality through the utilization of brain signals. Our results show that Neuroscore has superior performance to the current evaluation metrics in that:(1) It is more consistent with human judgment;(2) The evaluation process needs much smaller numbers of samples; and (3) It is able to rank the quality of images on a per GAN basis. A convolutional neural network (CNN) based neuro-AI interface is proposed to predict Neuroscore from GAN-generated images directly without the need for neural responses. Importantly, we show that including neural responses during the training phase of the network can significantly improve the prediction capability of the proposed model. Codes and data can be referred at this link: this https URL.
Digital Object Identifer (DOI): 
10.1016/j.neucom.2020.04.069
Publication Status: 
Published
Date Accepted for Publication: 
Thursday, 5 March, 2020
Publication Date: 
05/03/2020
Journal: 
Neurocomputing
Institution: 
Dublin City University (DCU)
Open access repository: 
Yes
Publication document: