56 citations · 192 across the 10 of their papers we have counts for
12 papers
Importance Sampling for Statistical Certification of Viable Initial Sets
Elizabeth Dietrich, Hanna Krasowski, Vegard Flovik +1
We study the problem of statistically certifying viable initial sets (VISs)---sets of initial conditions whose trajectories satisfy a given control specification. While VISs can be…
SALVE: Sparse Autoencoder-Latent Vector Editing for Mechanistic Control of Neural Networks
Vegard Flovik
Deep neural networks achieve impressive performance but remain difficult to interpret and control. We present SALVE (Sparse Autoencoder-Latent Vector Editing), a unified "discover,…
Gaussian Process Surrogate Models for Efficient Estimation of Structural Response Distributions and Order Statistics
Vegard Flovik, Sebastian Winter, Christian Agrell
Engineering disciplines often rely on extensive simulations to ensure that structures are designed to withstand harsh conditions while avoiding over-engineering for unlikely scenar…
Quantifying Distribution Shifts and Uncertainties for Enhanced Model Robustness in Machine Learning Applications
Vegard Flovik
Distribution shifts, where statistical properties differ between training and test datasets, present a significant challenge in real-world machine learning applications where they…
Point Cloud Data Simulation and Modelling with Aize Workspace
Boris Mocialov, Eirik Eythorsson, Reza Parseh +2
This work takes a look at data models often used in digital twins and presents preliminary results specifically from surface reconstruction and semantic segmentation models trained…
Generation of single skyrmions by picosecond magnetic field pulses
Vegard Flovik, Alireza Qaiumzadeh, Ashis K. Nandy +2
We numerically demonstrate an ultrafast method to create skyrmions in a ferromagnetic sample by applying a picosecond (effective) magnetic fi…
Thickness and temperature dependence of the magnetodynamic damping of pulsed laser deposited on (111)-oriented SrTi
Vegard Flovik, Ferran Macià, Sergi Lendínez +4
We have investigated the magnetodynamic properties of (LSMO) films of thickness 10, 15 and 30 nm grown on (111)-oriented SrTi$\text{O}_…
Describing synchronization and topological excitations in arrays of magnetic spin torque oscillators through the Kuramoto model
Vegard Flovik, Ferran Macià, Erik Wahlström
The collective dynamics in populations of magnetic spin torque oscillators (STO) is an intensely studied topic in modern magnetism. Here, we show that arrays of STO coupled via dip…
Eddy-current effects on ferromagnetic resonance: Spin wave excitations and microwave screening effects
Vegard Flovik, Bjørn Holst Pettersen, Erik Wahlström
We investigate how controlling induced eddy currents in thin film ferromagnet-normal metal (FM/NM) structures can be used to tailor the local microwave (MW) fields in ferromagnetic…
Dynamic wettability alteration in immiscible two-phase flow in porous media: Effect on transport properties and critical slowing down
Vegard Flovik, Santanu Sinha, Alex Hansen
The change in contact angles due to the injection of low salinity water or any other wettability altering agent in an oil-rich porous medium is modeled by a network model of disord…
Tailoring the magnetodynamic properties of nanomagnets using magnetocrystalline and shape anisotropies
Vegard Flovik, Ferran Macià, Joan Manel Hernàndez +3
Magnetodynamical properties of nanomagnets are affected by the demagnetizing fields created by the same nanoelements. In addition, magnetocrystalline anisotropy produces an effecti…
Eddy current interactions in a Ferromagnet-Normal metal bilayer structure, and its impact on ferromagnetic resonance lineshapes
Vegard Flovik, Ferran Macià, Andrew D. Kent +1
We investigate the effect of eddy currents on ferromagnetic resonance (FMR) in ferromagnet-normal metal (FM/NM) bilayer structures. Eddy-current effects are usually neglected for N…