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A Non-Adversarial Approach to Idempotent Generative Modelling
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Robotics, Perception and Learning, RPL.ORCID iD: 0009-0008-3998-893X
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Algebra, Combinatorics and Topology.ORCID iD: 0009-0004-8248-229X
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Robotics, Perception and Learning, RPL.ORCID iD: 0000-0003-3827-3824
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Robotics, Perception and Learning, RPL.ORCID iD: 0000-0003-2296-6685
Show others and affiliations
2025 (English)In: Proceedings ECAI 2025 - 28th European Conference on Artificial Intelligence / [ed] Inês Lynce, Nello Murano, Mauro Vallati, Serena Villata, Federico Chesani, Michela Milano, Andrea Omicini, Mehdi Dastani, IOS Press , 2025, Vol. 413, p. 1993-2000, article id 10.3233/FAIA251035Conference paper, Published paper (Refereed)
Abstract [en]

Idempotent Generative Networks (IGNs) are deep generative models that also function as local data manifold projectors, mapping arbitrary inputs back onto the manifold. They are trained to act as identity operators on the data and as idempotent operators off the data manifold. However, IGNs suffer from mode collapse, mode dropping, and training instability due to their objectives, which contain adversarial components and can cause the model to cover the data manifold only partially – an issue shared with generative adversarial networks. We introduce Non-Adversarial Idempotent Generative Networks (NAIGNs) to address these issues. Our loss function combines reconstruction with the non-adversarial generative objective of Implicit Maximum Likelihood Estimation (IMLE). This improves on IGN’s ability to restore corrupted data and generate new samples that closely match the data distribution. We moreover demonstrate that NAIGNs implicitly learn the distance field to the data manifold, as well as an energy-based model.

Place, publisher, year, edition, pages
IOS Press , 2025. Vol. 413, p. 1993-2000, article id 10.3233/FAIA251035
Series
Frontiers in Artificial Intelligence and Applications, ISSN 0922-6389, E-ISSN 0922-6389 ; 413
Keywords [en]
machine learning, generative modelling
National Category
Electrical Engineering, Electronic Engineering, Information Engineering Computer Vision and Learning Systems
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kth:diva-384880DOI: 10.3233/FAIA251035ISI: 001753070100249Scopus ID: 2-s2.0-105024442848OAI: oai:DiVA.org:kth-384880DiVA, id: diva2:2084581
Conference
ECAI 2025 - 28th European Conference on Artificial Intelligence, Including 14th Conference on Prestigious Applications of Intelligent Systems (PAIS 2025), Bologna, Italy, 25-30 October 2025
Funder
Wallenberg AI, Autonomous Systems and Software Program (WASP)Swedish Research CouncilEU, European Research CouncilKnut and Alice Wallenberg Foundation
Note

Part of ISBN 978-1-64368-631-8

QC 20260706

Available from: 2026-07-06 Created: 2026-07-06 Last updated: 2026-07-27Bibliographically approved

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Al-Jaff_etal_2025_NAIGN_ECAI_published.pdf(2729 kB)118 downloads
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Al-Jaff, MohammadMarchetti, Giovanni LucaWelle, Michael C.Lundell, JensHenter, Gustav EjeAzizpour, HosseinKragic, Danica

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Al-Jaff, MohammadMarchetti, Giovanni LucaWelle, Michael C.Lundell, JensGustafsson, MatsHenter, Gustav EjeAzizpour, HosseinKragic, Danica
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