Hybrid Generative Models for Two-Dimensional Datasets

Hoda Shajari, Jaemoon Lee, Sanjay Ranka, Anand Rangarajan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Two-dimensional array-based datasets are pervasive in a variety of domains. Current approaches for generative modeling have typically been limited to conventional image datasets and performed in the pixel domain which does not explicitly capture the correlation between pixels. Additionally, these approaches do not extend to scientific and other applications where each element value is continuous and is not limited to a fixed range. In this paper, we propose a novel approach for generating two-dimensional datasets by moving the computations to the space of representation bases and show its usefulness for two different datasets, one from imaging and another from scientific computing. The proposed approach is general and can be applied to any dataset, representation basis, or generative model. We provide a comprehensive performance comparison of various combinations of generative models and representation basis spaces. We also propose a new evaluation metric which captures the deficiency of generating images in pixel space.

Original languageEnglish
Title of host publicationArtificial Neural Networks and Machine Learning – ICANN 2021 - 30th International Conference on Artificial Neural Networks, Proceedings
EditorsIgor Farkaš, Paolo Masulli, Sebastian Otte, Stefan Wermter
PublisherSpringer Science and Business Media Deutschland GmbH
Pages623-636
Number of pages14
ISBN (Print)9783030863395
DOIs
StatePublished - 2021
Externally publishedYes
Event30th International Conference on Artificial Neural Networks, ICANN 2021 - Virtual, Online
Duration: Sep 14 2021Sep 17 2021

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume12892 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference30th International Conference on Artificial Neural Networks, ICANN 2021
CityVirtual, Online
Period09/14/2109/17/21

Funding

Acknowledgments. This material is based upon work supported by the U.S. Department of Energy, Office of Advanced Scientific Computing Research, Scientific Discovery through Advanced Computing (SciDAC) program under Award Number DESC0021320.

Keywords

  • Generative adversarial networks
  • Generative models
  • Image representation bases
  • Independent component analysis
  • Normalizing flows

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