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Nordenfors, Oskar
Publikationer (3 of 3) Visa alla publikationer
Nordenfors, O. & Flinth, A. (2025). Data augmentation and regularization for learning group equivariance. In: 2025 International Conference on Sampling Theory and Applications (SampTA): . Paper presented at 2025 International Conference on Sampling Theory and Applications, SampTA 2025, Vienna, Austria, 28 July 2025 - 01 August 2025. Institute of Electrical and Electronics Engineers (IEEE)
Öppna denna publikation i ny flik eller fönster >>Data augmentation and regularization for learning group equivariance
2025 (Engelska)Ingår i: 2025 International Conference on Sampling Theory and Applications (SampTA), Institute of Electrical and Electronics Engineers (IEEE), 2025Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

In many machine learning tasks, known symmetries can be used as an inductive bias to improve model performance. In this paper, we consider learning group equivariance through training with data augmentation. We summarize results from a previous paper of our own, and extend the results to show that equivariance of the trained model can be achieved through training on augmented data in tandem with regularization.

Ort, förlag, år, upplaga, sidor
Institute of Electrical and Electronics Engineers (IEEE), 2025
Serie
International Conference on Sampling Theory and Applications, ISSN 2831-5480, E-ISSN 2694-0108
Nationell ämneskategori
Sannolikhetsteori och statistik
Identifikatorer
urn:nbn:se:umu:diva-252871 (URN)10.1109/SampTA64769.2025.11133551 (DOI)001575485600062 ()2-s2.0-105035337619 (Scopus ID)9798331502515 (ISBN)9798331502508 (ISBN)
Konferens
2025 International Conference on Sampling Theory and Applications, SampTA 2025, Vienna, Austria, 28 July 2025 - 01 August 2025
Forskningsfinansiär
Wallenberg AI, Autonomous Systems and Software Program (WASP)
Tillgänglig från: 2026-05-05 Skapad: 2026-05-05 Senast uppdaterad: 2026-05-05Bibliografiskt granskad
Nordenfors, O., Ohlsson, F. & Flinth, A. (2025). Optimization dynamics of equivariant and augmented neural networks. Transactions on Machine Learning Research
Öppna denna publikation i ny flik eller fönster >>Optimization dynamics of equivariant and augmented neural networks
2025 (Engelska)Ingår i: Transactions on Machine Learning Research, E-ISSN 2835-8856Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

We investigate the optimization of neural networks on symmetric data, and compare the strategy of constraining the architecture to be equivariant to that of using data augmentation. Our analysis reveals that the relative geometry of the admissible and the equivariant layers, respectively, plays a key role. Under natural assumptions on the data, network, loss, and group of symmetries, we show that compatibility of the spaces of admissible layers and equivariant layers, in the sense that the corresponding orthogonal projections commute, implies that the sets of equivariant stationary points are identical for the two strategies. If the linear layers of the network also are given a unitary parametrization, the set of equivariant layers is even invariant under the gradient flow for augmented models. Our analysis however also reveals that even in the latter situation, stationary points may be unstable for augmented training although they are stable for the manifestly equivariant models.

Nyckelord
Equivariance, data augmentation, neural networks, dynamical systems
Nationell ämneskategori
Datavetenskap (datalogi) Beräkningsmatematik
Forskningsämne
matematik
Identifikatorer
urn:nbn:se:umu:diva-234734 (URN)2-s2.0-85219534158 (Scopus ID)
Forskningsfinansiär
Wallenberg AI, Autonomous Systems and Software Program (WASP)
Anmärkning

Submission number: 3153

Published: 2025-01-16

Tillgänglig från: 2025-01-29 Skapad: 2025-01-29 Senast uppdaterad: 2025-03-19Bibliografiskt granskad
Åhag, P., Hed, L., Leijon, R., Nordenfors, O. & Olsson, L. (2023). Industrial engineering and management students envision AI's role in the industry. In: 2023 IEEE International Conference on Industrial Engineering and Engineering Management: . Paper presented at 2023 IEEE International Conference on Industrial Engineering and Engineering Management, IEEM 2023, Singapore, Singapore, December 18-21, 2023 (pp. 903-907). IEEE
Öppna denna publikation i ny flik eller fönster >>Industrial engineering and management students envision AI's role in the industry
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2023 (Engelska)Ingår i: 2023 IEEE International Conference on Industrial Engineering and Engineering Management, IEEE, 2023, s. 903-907Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

This study explores the perceptions of master's program students in Industrial Engineering and Management (IEM) at Umeå University, Sweden, concerning the current and future impact of artificial intelligence (AI) on their discipline. Employing a descriptive, cross-sectional survey design, we collected quantitative data from participants asked to assess AI's influence on decision-making, human-computer interactions, and information management, among other areas. While ordinal regression analysis revealed no significant correlation between the student's academic year and their survey responses, a Wilcoxon signed-rank test indicated a statistically significant belief that AI's impact on all surveyed areas would intensify within the next decade. Our findings suggest a need for engineering education to evolve to adequately equip future professionals for the expanding influence of AI in IEM. Furthermore, the results add to the ongoing discussion of AI's role in engineering education and the broader industrial engineering and management field.

Ort, förlag, år, upplaga, sidor
IEEE, 2023
Nyckelord
AI impact, Artificial intelligence, Curriculum improvement, Engineering Education, Industrial Engineering and Management, Prompt engineering, Student perceptions
Nationell ämneskategori
Sannolikhetsteori och statistik
Identifikatorer
urn:nbn:se:umu:diva-221850 (URN)10.1109/IEEM58616.2023.10406717 (DOI)2-s2.0-85186075235 (Scopus ID)979-8-3503-2315-3 (ISBN)979-8-3503-2316-0 (ISBN)
Konferens
2023 IEEE International Conference on Industrial Engineering and Engineering Management, IEEM 2023, Singapore, Singapore, December 18-21, 2023
Tillgänglig från: 2024-03-12 Skapad: 2024-03-12 Senast uppdaterad: 2024-03-12Bibliografiskt granskad
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