39 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- UiT The Arctic University of NorwayNO44 papers
- KTH Royal Institute of TechnologySE5 papers
- Br. Birkeland (Norway)NO4 papers
- Norwegian Computing CenterNO4 papers
- University of BergenNO4 papers
- Aalto UniversityFI3 papers
- Carnegie Mellon UniversityUS2 papers
- Cornell UniversityUS2 papers
- Ghent UniversityBE2 papers
- Ghent University HospitalBE2 papers
- HOGENT University of Applied Sciences and ArtsBE2 papers
- Karolinska InstitutetSE2 papers
54 papers
A rigorous coupled-wave analysis of birefringent holographic gratings with periodically-modulated dielectric tensor along an in-plane direction and tensor variations in the thickness direction
Masud Mansuripur, Per Kristen Jakobsen
Diffraction of light upon interaction with thick slabs of a dielectric material having a periodic modulation of its refractive index (or dielectric tensor) is typically studied wit…
Physics-constrained generative machine learning-based high-resolution downscaling of Greenland's surface mass balance and surface temperature
Nils Bochow, Philipp Hess, Alexander Robinson
Accurate, high-resolution projections of the Greenland ice sheet's surface mass balance (SMB) and surface temperature are essential for understanding future sea-level rise, yet cur…
Getting Ready for the EU AI Act in Healthcare. A call for Sustainable AI Development and Deployment
John Brandt Brodersen, Ilaria Amelia Caggiano, Pedro Kringen +6
Assessments of trustworthiness have become a cornerstone of responsible AI development. Especially in high-stakes fields like healthcare, aligning technical, evidence-based, and et…
Optimizing Data Augmentation through Bayesian Model Selection
Madi Matymov, Ba-Hien Tran, Michael Kampffmeyer +2
Data Augmentation (DA) has become an essential tool to improve robustness and generalization of modern machine learning. However, when deciding on DA strategies it is critical to c…
On the hull-variation problem of equivalent vector rank metric codes
Duy Ho, Trygve Johnsen
The intersection of a linear code with its dual is called the hull of the code. It is known that, for classical linear codes under the Hamming-metric, the dimension of the hull can…
Noise Tolerant Force Calculations in Density Functional Theory: A Surface Integral Approach for Wavelet-Based Methods
Moritz Gubler, Jonas A. Finkler, Stig Rune Jensen +2
We introduce a method for computing quantum mechanical forces through surface integrals over the stress tensor within the framework of density functional theory. This approach avoi…
Contemporaneous Appearances of Auroral Spiral and Transpolar Arc: Polar UVI Observations and Global MHD Simulations
Motoharu Nowada, Yukinaga Miyashita, Aoi Nakamizo +2
A local vortex-structured aurora and a large-scale transpolar arc (TPA) were contemporaneously observed by the Polar ultraviolet imager (UVI) during the late recovery phase of a su…
Invariant divisors and equivariant line bundles
Boris Kruglikov, Eivind Schneider
Scalar relative invariants play an important role in the theory of group actions on a manifold as their zero sets are invariant hypersurfaces. Relative invariants are central in ma…
Colored Gaussian directed acyclic graphical models
Tobias Boege, Kaie Kubjas, Pratik Misra +1
We study submodels of Gaussian DAG models defined by partial homogeneity constraints imposed on the model error variances and structural coefficients. We represent these models wit…
Schr{ö}dinger eigenfunctions sharing the same modulus and applications to the control of quantum systems
Ugo Boscain, Kévin Le Balc'H, Mario Sigalotti
In this paper we investigate when linearly independent eigenfunctions of the Schr\''odinger operator may have the same modulus. General properties are established and the one-dimen…
View it like a radiologist: Shifted windows for deep learning augmentation of CT images
Eirik A. Østmo, Kristoffer K. Wickstrøm, Keyur Radiya +2
Deep learning has the potential to revolutionize medical practice by automating and performing important tasks like detecting and delineating the size and locations of cancers in m…
Approaching adverse event detection utilizing transformers on clinical time-series
Helge Fredriksen, Per Joel Burman, Ashenafi Woldaregay +2
Patients being admitted to a hospital will most often be associated with a certain clinical development during their stay. However, there is always a risk of patients being subject…
Divertor shaping with neutral baffling as a solution to the tokamak power exhaust challenge
K. Verhaegh, J. R. Harrison, D. Moulton +20
Exhausting power from the hot fusion core to the plasma-facing components is one of the biggest challenges in fusion energy. The MAST Upgrade tokamak uniquely integrates strong con…
On 3-nondegenerate CR manifolds in dimension 7 (II): the intransitive case
Boris Kruglikov, Andrea Santi
We investigate 3-nondegenerate CR structures in the lowest possible dimension 7 and show that 8 is the maximal dimension for the Lie algebra of symmetries of such structures. The n…
Observability estimates for the Schr{ö}dinger equation in the plane with periodic bounded potentials from measurable sets
Kévin Le Balc'H, Jérémy Martin
The goal of this article is to obtain observability estimates for Schr{ö}dinger equations in the plane R 2. More precisely, considering a 2Z 2-periodic potential V L $\inf…
Self-Supervised Few-Shot Learning for Ischemic Stroke Lesion Segmentation
Luca Tomasetti, Stine Hansen, Mahdieh Khanmohammadi +4
Precise ischemic lesion segmentation plays an essential role in improving diagnosis and treatment planning for ischemic stroke, one of the prevalent diseases with the highest morta…
The aromatic bicomplex for the description of divergence-free aromatic forms and volume-preserving integrators
Adrien Laurent, Robert I. McLachlan, Hans Z. Munthe-Kaas +1
Aromatic B-series were introduced as an extension of standard Butcher-series for the study of volume-preserving integrators. It was proven with their help that the only volume-pres…
On Uniqueness of Submaximally Symmetric Vector Ordinary Differential Equations of C-Class
Johnson Allen Kessy, Dennis The
The fundamental invariants for vector ODEs of order considered up to point transformations consist of generalized Wilczynski invariants and C-class invariants. An ODE of C-…
Progress on Infinite Cluster Categories Related to Triangulations of the (Punctured) Disk
Fatemeh Mohammadi, Job Daisie Rock, Francesca Zaffalon
In this mostly expository paper, we present recent progress on infinite (weak) cluster categories that are related to triangulations of the disk, with and without a puncture. First…
Hilbert phase microscopy based on pseudo thermal illumination in Linnik configuration
Mikołaj Rogalski, Maria Cywińska, Azeem Ahmad +4
Quantitative phase microscopy (QPM) is often based on recording an object-reference interference pattern and its further phase demodulation. We propose Pseudo Hilbert Phase Microsc…
Explainability in subgraphs-enhanced Graph Neural Networks
Michele Guerra, Indro Spinelli, Simone Scardapane +1
Recently, subgraphs-enhanced Graph Neural Networks (SGNNs) have been introduced to enhance the expressive power of Graph Neural Networks (GNNs), which was proved to be not higher t…
Killing Tensors in Koutras-McIntosh Spacetimes
Boris Kruglikov, Wijnand Steneker
The Koutras-McIntosh family of metrics include conformally flat pp-waves and the Wils metric. It appeared in a paper of 1996 by Koutras-McIntosh as an example of a pure radiation s…
Auroral Morphological Changes to the Formation of Auroral Spiral during the Late Substorm Recovery Phase: Polar UVI and Ground All-Sky Camera Observations
Motoharu Nowada, Yukinaga Miyashita, Noora Partamies +2
The ultraviolet imager (UVI) of the Polar spacecraft and an all-sky camera at Longyearbyen contemporaneously detected an auroral vortex structure (so-called "auroral spiral") on 10…
Orbit spaces of Weyl groups acting on compact tori: a unified and explicit polynomial description
Evelyne Hubert, Tobias Metzlaff, Cordian Riener
The Weyl group of a crystallographic root system has a nonlinear action on the compact torus. The orbit space of this action is a compact basic semi-algebraic set. We present a pol…