Zobrazeno 1 - 10
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pro vyhledávání: '"Korpi A"'
We propose a novel method for interpreting neural networks, focusing on convolutional neural network-based receiver model. The method identifies which unit or units of the model contain most (or least) information about the channel parameter(s) of th
Externí odkaz:
http://arxiv.org/abs/2409.16768
Recent research has shown that integrating artificial intelligence (AI) into wireless communication systems can significantly improve spectral efficiency. However, the prevalent use of simulated radio channel data for training and validating neural n
Externí odkaz:
http://arxiv.org/abs/2408.04182
Autor:
Warnecke, Jörn, Korpi-Lagg, Maarit J., Rheinhard, Matthias, Viviani, Mariangela, Prabhu, Ameya
It has been recently shown that a small-scale dynamo (SSD) instability could be possible in solar-like low magnetic Prandtl number Pm plasmas. It has been proposed that the presence of SSD can potentially have a significant impact on the dynamics of
Externí odkaz:
http://arxiv.org/abs/2406.08967
Over the last ten years, graphics processors have become the de facto accelerator for data-parallel tasks in various branches of high-performance computing, including machine learning and computational sciences. However, with the recent introduction
Externí odkaz:
http://arxiv.org/abs/2406.08923
Autor:
Vukadinović, D., Smitha, H. N., Korpi-Lagg, A., van Noort, M., Durán, J. S. Castellanos, Solanki, S. K.
Publikováno v:
A&A 686, A262 (2024)
For many transitions, atomic data, such as the oscillator strength (log(gf)) and the central wavelength of the line, are poorly constrained or even unknown. We present and test a new inversion method that infers atomic line parameters and the height
Externí odkaz:
http://arxiv.org/abs/2404.03291
Autor:
Durán, J. S. Castellanos, Milanovic, N., Korpi-Lagg, A., Löptien, B., van Noort, M., Solanki, S. K.
Publikováno v:
A&A 687, A218 (2024)
We present a catalog that we named MODEST containing depth-dependent information on the atmospheric conditions inside sunspot groups of all types. The catalog is currently composed of 942 observations of 117 individual active regions with sunspots th
Externí odkaz:
http://arxiv.org/abs/2403.06960
Context. Aalto University Mets\"ahovi Radio Observatory has collected solar intensity maps for over 45 years. Most data coverage is on the 37 GHz frequency band, tracking emissions primarily at the chromosphere and coronal transition region. The data
Externí odkaz:
http://arxiv.org/abs/2402.12849
Galaxies are observed to host magnetic fields with a typical total strength of around 15microgauss. A coherent large-scale field constitutes up to a few microgauss of the total, while the rest is built from strong magnetic fluctuations over a wide ra
Externí odkaz:
http://arxiv.org/abs/2401.04015
This paper investigates the feasibility of machine learning (ML)-based pilotless spatial multiplexing in multiple-input and multiple-output (MIMO) communication systems. Especially, it is shown that by training the transmitter and receiver jointly, t
Externí odkaz:
http://arxiv.org/abs/2312.05158
Autor:
Yeo, K. L., Krivova, N. A., Solanki, S. K., Hirzberger, J., Suárez, D. Orozco, Albert, K., Jorge, N. Albelo, Appourchaux, T., Alvarez-Herrero, A., Rodríguez, J. Blanco, Gandorfer, A., Gutierrez-Marques, P., Kahil, F., Kolleck, M., Iniesta, J. C. del Toro, Volkmer, R., Woch, J., Fiethe, B., Pérez-Grande, I., Kilders, E. Sanchis, Jiménez, M. Balaguer, Rubio, L. R. Bellot, Calchetti, D., Carmona, M., Feller, A., Fernandez-Rico, G., Fernández-Medina, A., Parejo, P. García, Blesa, J. L. Gasent, Gizon, L., Grauf, B., Heerlein, K., Korpi-Lagg, A., Maue, T., Meller, R., Vacas, A. Moreno, Müller, R., Nakai, E., Schmidt, W., Schou, J., Sinjan, J., Staub, J., Strecker, H., Torralbo, I., Valori, G.
Publikováno v:
A&A 679, A25 (2023)
Solar irradiance variability has been monitored almost exclusively from the Earth's perspective. {We present a method to combine the unprecedented observations of the photospheric magnetic field and continuum intensity from outside the Sun-Earth line
Externí odkaz:
http://arxiv.org/abs/2309.16355