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405 papers · 1 filter
Automatic stabilization of finite-element simulations using neural networks and hierarchical matrices
Tomasz Sluzalec, Mateusz Dobija, Anna Paszynska +2
Petrov-Galerkin formulations with optimal test functions allow for the stabilization of finite element simulations. In particular, given a discrete trial space, the optimal test sp…
Graph Neural Networks in Computer Vision -- Architectures, Datasets and Common Approaches
Maciej Krzywda, Szymon Łukasik, Amir H. Gandomi
Graph Neural Networks (GNNs) are a family of graph networks inspired by mechanisms existing between nodes on a graph. In recent years there has been an increased interest in GNN an…
Beyond the four-level model: Dark and hot states in quantum dots degrade photonic entanglement
Barbara Ursula Lehner, Tim Seidelmann, Gabriel Undeutsch +9
Entangled photon pairs are essential for a multitude of photonic quantum applications. To date, the best performing solid-state quantum emitters of entangled photons are semiconduc…
Fast-moving object counting with an event camera
Kamil Bialik, Marcin Kowalczyk, Krzysztof Blachut +1
This paper proposes the use of an event camera as a component of a vision system that enables counting of fast-moving objects - in this case, falling corn grains. These type of cam…
Segmentation of pores within concrete-epoxy interface using synchronous chemical composition mapping and backscattered electron imaging
Andrzej M. Żak, Anna Wieczorek, Agnieszka Chowaniec +1
The method of assessing porosity using images from scanning electron microscopy is ineffective in situations where the substrate and the coating have a significantly different aver…
High-angular momentum excitations in collinear antiferromagnet FePS
Jan Wyzula, Ivan Mohelsky, Diana Vaclavkova +6
We report on magneto-optical studies of the quasi-two-dimensional van der Waals antiferromagnet FePS. Our measurements reveal an excitation that closely resembles the antiferro…