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Synthetic-Neuroscore: using a neuro-AI interface for evaluating generative adversarial networks
Wang, Zhengwei; She, Qi; Smeaton, Alan F.; Ward, Tomás E.; Healy, Graham
Generative adversarial networks (GANs) are increasingly attracting attention in the computer vision, natural language processing, speech synthesis and similar domains. Arguably the most striking results have been in the area of image synthesis. 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 the human perception of the image quality. In this work, we introduce an evaluation metric we call 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 performances 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 based brain-inspired framework is also proposed to predict Neuroscore from GAN-generated images. Importantly, we show that including neural responses during the training phase of the network can significantly improve the prediction capability of the proposed model.
Keyword(s): Neuroscience; Artificial intelligence; Machine learning; Neuroscore; Generative adversarial networks; Neuro-AI interface; Brain-computer interface
Publication Date:
2020
Type: Other
Peer-Reviewed: Unknown
Language(s): English
Institution: Dublin City University
Citation(s): Wang, Zhengwei ORCID: 0000-0001-7706-553X <https://orcid.org/0000-0001-7706-553X>, She, Qi, Smeaton, Alan F. ORCID: 0000-0003-1028-8389 <https://orcid.org/0000-0003-1028-8389>, Ward, Tomás E. ORCID: 0000-0002-6173-6607 <https://orcid.org/0000-0002-6173-6607> and Healy, Graham ORCID: 0000-0001-6429-6339 <https://orcid.org/0000-0001-6429-6339> (2020) Synthetic-Neuroscore: using a neuro-AI interface for evaluating generative adversarial networks. Neurocomputing, 405 . pp. 26-36. ISSN 0925-2312
Publisher(s): Elsevier
File Format(s): application/pdf
Related Link(s): http://doras.dcu.ie/24650/1/Neurocomputing_latest.pdf,
http://dx.doi.org/10.1016/j.neucom.2020.04.069
First Indexed: 2020-06-19 06:55:03 Last Updated: 2020-06-19 06:55:03